[go: up one dir, main page]

CN107286160A - A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex - Google Patents

A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex Download PDF

Info

Publication number
CN107286160A
CN107286160A CN201710413835.3A CN201710413835A CN107286160A CN 107286160 A CN107286160 A CN 107286160A CN 201710413835 A CN201710413835 A CN 201710413835A CN 107286160 A CN107286160 A CN 107286160A
Authority
CN
China
Prior art keywords
reaction
boc
added
piperidines
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201710413835.3A
Other languages
Chinese (zh)
Inventor
毛佳婧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201710413835.3A priority Critical patent/CN107286160A/en
Publication of CN107286160A publication Critical patent/CN107286160A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D471/00Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
    • C07D471/12Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains three hetero rings
    • C07D471/14Ortho-condensed systems

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention discloses a kind of piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex, belong to pharmaceutical chemistry synthesis technical field.Technical scheme main points are:The present invention has the advantages that compared with prior art:Synthetic method of the present invention is simple, molecular structure is novel and resulting compound

Description

A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles-Zn complex
Technical field
The invention belongs to pharmaceutical chemical synthesis technical field, and in particular to a kind of piperidines of Antihepatitis medicament and pyrido The preparation method of pyrazoles-Zn complex.
Background technology
The synthesis of organic heterocyclic molecule is that organic chemistry filed develops fast one branch in recent years with application, in doctor Occupy highly important status in medicine, the development of agricultural chemicals.It is used as the important heterocyclic compound of a class, o-diazepamate class Compound all plays very important effect in medicine, agricultural chemicals.The pyrazole derivatives spy such as have effect wide spectrum, drug effect strong Point, has been received more and more attention.In field of medicaments, o-diazepamate class compound is to including cancer, asthma, joint Many diseases including inflammation have curative effect;In pesticide field, there is o-diazepamate class compound desinsection, sterilization and weeding to live Property.In addition, o-diazepamate analog derivative has also all been applied in industries such as papermaking, leather, washing, plastics, coating, with wide Wealthy research and development prospect.Pyridine is also a kind of important nitrogen heterocyclic ring, because there is good bioactivity extensively should for it For medical research.For example, its derivative can suppress as 5HT2A receptor antagonists, extracellular signal-regulated kinase Agent, mammal P2X7 conditioning agents, and with anti-breast cancer cell MDA-MB-231 proliferation activities and suppress liver cancer cells HepG2 propagation.Fluorine-containing aromatic ring group, occurs very frequently in many insecticide pesticides, such as double trifluoro worm urides.Piperidines is main For synthesizing medicine, agricultural chemicals and rubber chemicals, it is mainly used in synthesizing herbicides for use in paddy dimepiperate in pesticide industry, is a kind of selection The non-hormone-type thiocarbamic acid class herbicide of property, very with development prospect.It is used to synthesize digestive system in pharmaceuticals industry Medicine hydrochloric acid acetyl Roxatidine, cardiovascular disease medicine Dipyridmole etc..It is used to synthesize thiurams in Rubber Chemicals Industries Super vulcanization accelerator bis-pentamethylenethiuram tetrasulfide, the super sulphur of accelerator pentamethylene two of dithiocarbamates For carbamic acid piperidinium salt etc..Other piperidines can also synthesize various new fine-chemical intermediate, and many products are belonged to newly The intermediate of small tonnage, the medicine of high added value, agricultural chemicals and the auxiliary agent developed, such as pipecoline, 3- aminomethylpiperidines, 4- hydroxyls Phenylpiperidines etc..
This seminar has designed and synthesized a kind of piperidines of Antihepatitis medicament by the method for Computer-Aided Drug Design And the preparation method of pyrido pyrazoles-Zn complex, and related activity test has been carried out to it.
The content of the invention
Present invention solves the technical problem that there is provided, a kind of synthetic method is simple, a kind of novel anti-hepatitis of molecular structure The piperidines of medicine and the preparation method of pyrido pyrazoles-Zn complex.
The present invention adopts the following technical scheme that a kind of piperidines of new Antihepatitis medicament is simultaneously to solve above-mentioned technical problem The preparation method of pyrido pyrazoles-Zn complex, it is characterised in that concretely comprise the following steps:
A, N-Boc-4- piperidones and dimethyl carbonate react in the presence of potassium tert-butoxide obtains N-Boc-3- formic acid first Ester -4- piperidones
B, N-Boc-3- methyl formate -4- piperidones are under ammonium acetate effect, and ketone carbonyl redox is changed into amino Compound N-Boc-3- methyl formate -4- amino -3- alkene-piperidines
C, N-Boc-3- methyl formate -4- amino -3- alkene-piperidines and chloroformyl ethyl acetate take under TEA effects Generation reaction obtains compound N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines
D, N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines occur in the presence of potassium tert-butoxide Intramolecular cyclization obtains compoundThen the compound carries out intramolecular in acid condition Hydrogen migration and carbonyl reduction obtain compound
E、Under strongly acidic conditions, ester group and Boc groups are sloughed in heating, obtain compound
F、Under POCl3 effect, hydroxyl is replaced by chlorine obtains compound
G、Chloro carbon-to-nitrogen double bon is changed into amido link under concentrated hydrochloric acid effect and obtain compound
H、In the basic conditions, Boc amido protectings are carried out and obtains compound
I、Under cesium carbonate effect compound is obtained with iodomethane reaction
J、Reduction carbon-carbon double bond is obtained under Pd/C effects
K、Occur condensation with 4- pyridine carboxaldehydes and obtain compound
L、Compound is obtained with hydration hydrazine reaction
M、Intramolecular cyclization is carried out under Oxygen Condition and obtains compound
N、Slough Boc groups and obtain compound
O、Occur complex reaction with zinc chloride to obtain Further limit, step A detailed process is:In reaction bulb, 1eq N-Boc-4- piperidones is added to 10V volumes In toluene, 2eq dimethyl carbonate and 2eq potassium tert-butoxide are added, 70 DEG C of reaction 1h is heated to, is cooled to room temperature, adds water It is quenched, it is 7 to adjust reaction solution pH with 1mol/L HCl, ethyl acetate extraction, after anhydrous sodium sulfate drying, is spin-dried for obtaining yellow Grease N-Boc-3- methyl formate -4- piperidones
Further limit, step B detailed process is:1eq N-Boc-3- methyl formate -4- piperidones is added to 10 In the methanol of times volume, 3eq ammonium acetate is added, reaction is stayed overnight, be spin-dried for methanol, add the water of 3 times of volumes, dichloromethane extraction Anhydrous sodium sulfate drying is used after extracting reaction solution, red oily liquids N-Boc-3- methyl formate -4- amino -3- is obtained after being spin-dried for Alkene-piperidines
Further limit, step C detailed process is:By 1eq N-Boc-3- methyl formate -4- amino -3- alkene-piperidines In the DCM for being added to 8 times of volumes, 1.05eq TEA is added, 10 DEG C are cooled to, 1.05eq 4- chloromethane ethyl acetoacetic acid second is added dropwise Ester, room temperature reaction is stayed overnight, and adds the DCM dilute reaction solutions of 8 times of volumes, twice, anhydrous sodium sulfate drying is spin-dried for both obtaining for washing Red oil product N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines
Further limit, step D detailed process is:1eq N-Boc-3- methyl formate -4- carbamyl acetic acid second Ester -3- alkene-piperidines is added in the THF of 10 times of volumes, then is added portionwise 2.0eq t-BuOK, reaction temperature control less than 25 DEG C, frozen water is added after reaction 1h and is quenched, it is 3 to adjust reaction solution pH with 2mol/L HCl, filtering, and it is white that vacuum drying obtains class Color solid product
Further limit, step E detailed process is:In 10eq 6mol/L HCl solution, it is added portionwise 1.0eq's100 DEG C are heated to, reaction is stayed overnight, are spin-dried for reaction dissolvent, then washed with ether, is dried in vacuo Obtain off-white powder
Further limit, step F detailed process is:To 5eq POCl3In be added portionwise 1.0eq's100 DEG C are heated to, reaction is stayed overnight, are spin-dried for POCl3Obtain Red oil product
Further limit, step G detailed process is:It is added to the 1,4- dioxies six of 4 times of volumes In ring, the concentrated hydrochloric acid of 4 times of volumes is added, 100 DEG C are heated to, back flow reaction 2 days is spin-dried for adding the second of 10 times of volumes after solvent Acetoacetic ester, is washed three times, is dried and is obtained brown solid after being spin-dried for
Further limit, step H detailed process is:1eq'sIt is added to the 1,4- of 10 times of volumes In dioxane and the water of 10 times of volumes, then 3.0eq sodium carbonate and 1.5eq (Boc) is added portionwise2O, reacts at room temperature 10h Afterwards, filter, then wash with ethyl acetate reaction solution is extracted with ethyl acetate after filter cake, then washed with sodium chloride solution, dried, revolved Reaction solution is obtained
Further limit, step I detailed process is:1.0eq'sIt is added to 10 times of volumes DMF in, add 1.5eq Cs2CO3, 1.3eq KI, room temperature reaction stays overnight, and adds frozen water and reaction solution, acetic acid is quenched Ethyl ester extractive reaction liquid, sodium chloride solution washing, dries, is spin-dried for, then is beaten with ether, filters, and it is solid that vacuum drying obtains white Body
Further limit, step J detailed process is:In autoclave, by 1.0eq'sAdd To the methanol of 10 times of volumes, a certain amount of Pd/C is passed through hydrogen, reacting kettle inner pressure is reached 0.2MPa, is heated to 50 DEG C, back flow reaction 5h, TLC monitoring raw material reaction is complete, and filtering reacting liquid is spin-dried for after solvent obtaining brown solid
Further limit, step K detailed process is:By compoundAdd in DMF, add 4- pyridine carboxaldehydes and a certain amount of triethylamine, are heated to backflow, complete through TLC monitoring raw material reactions after reaction a period of time, Reaction solution, which is poured into frozen water, has a large amount of solids to separate out, and filter cake drying is obtained compound after suction filtration
Further limit, step L detailed process is:In reaction bulb, compoundAdd In DMSO, a certain amount of hydrazine hydrate is added, at ambient temperature reaction a period of time, it is complete through TLC monitoring raw material reactions, Reaction solution, which is poured into frozen water, has a large amount of solids to separate out, and filter cake drying is obtained compound after suction filtration
Further limit, step M detailed process is:In reaction bulb, compoundPlus Enter in DMSO, backflow is heated under Oxygen Condition, it is reaction a period of time, complete through TLC monitoring raw material reactions, reaction solution is fallen Enter in frozen water to have a large amount of solids to separate out, filter cake drying is obtained compound after suction filtration
Further limit, step K detailed process is:1.0eqIt is added to 10 times of volumes Methanol and 10 volumes 12mol/L HCl/1, in 4- dioxane, room temperature reaction is stayed overnight, and is spin-dried for, ether washing, is obtained
Further limit, step L detailed process is:Nitrogen is passed through into the ultrasonic response container for being provided with agitating device Gas, then add dissolved withDichloromethane solution, add ammoniacal liquor after, hold in 25 DEG C to ultrasonic response The methanol solution dissolved with zinc chloride is added dropwise in device, agitating device and ultrasonic generator, ultrasonic wave hair are opened during dropwise addition The setpoint frequency of generating apparatus is 80KHz, drips rear solution for clear state, stops stirring, keep ultrasonic generator after Continuous work, is cooled to 0 DEG C of standing reaction solution, opens the steam vent on ultrasonic response container, keeps the nitrogen that is passed through from exhaust Hole is discharged, and nitrogen is discharged ultrasonic response container with reaction dissolvent, has crystallization after clear crystal precipitation, 5h complete, suction filtration Reaction solution, filter cake is washed repeatedly with methanol to wash away unnecessary zinc chloride, and filter cake is obtained after drying at room temperature
The synthetic route of the piperidines of Antihepatitis medicament of the present invention a kind of and pyrido pyrazoles-Zn complex is:
The present invention has synthesized a kind of piperidines and pyrido pyrazoles-Zn complex and has carried out antihepatitic activity test, finds The complex has good antihepatitic activity.
Embodiment
The above to the present invention is described in further details by the following examples, but this should not be interpreted as to this The scope for inventing above-mentioned theme is only limitted to following embodiment, and all technologies realized based on the above of the present invention belong to this hair Bright scope.
Embodiment 1
In reaction bulb, N-Boc-4- piperidones 20g (0.1mol) is added in toluene 200mL, carbonic acid two is added Methyl esters 18g (0.2mol) and potassium tert-butoxide 22g (0.2mol), is heated to 70 DEG C of reaction 1h, is cooled to room temperature, the 100mL that adds water quenches Go out, it is 7 to adjust reaction solution pH with 1mol/L HCl, ethyl acetate extraction, after anhydrous sodium sulfate drying, be spin-dried for obtaining yellow oil Shape thing N-Boc-3- methyl formate -4- piperidones 25g
Embodiment 2
In reaction bulb, N-Boc-3- methyl formate -4- piperidones 25g (0.1mol) are added in methanol 300mL, then Ammonium acetate 22g (0.3mol) is added, reaction is stayed overnight, TLC monitoring raw material reactions are complete, are spin-dried for methanol, water 900mL added, with two Chloromethanes 300mL extractive reactions liquid three times, merges and anhydrous sodium sulfate drying is used after organic phase, red oily liquids is obtained after being spin-dried for N-Boc-3- methyl formate -4- amino -3- alkene-piperidines 25g
Embodiment 3
In reaction bulb, N-Boc-3- methyl formate -4- amino -3- alkene-piperidines 26g (0.1mol) is added to dichloromethane In alkane 200mL, TEA11g (0.11mol) is added, 10 DEG C are cooled to, 4- chloroformyl ethyl acetate 16g is slowly added dropwise (0.105mol), room temperature reaction is stayed overnight, and TLC monitoring raw material reactions are complete, add dichloromethane 200mL dilute reaction solutions, water Wash twice, anhydrous sodium sulfate drying, be spin-dried for both obtaining Red oil product N-Boc-3- methyl formate -4- carbamyl acetic acid second Ester -3- alkene-piperidines 25g
Embodiment 4
In reaction bulb, N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines 37g (0.1mol) It is added in THF400mL, then t-BuOK 23g (0.2mol) is added portionwise, reaction temperature control is reacted after 1h less than 25 DEG C Add frozen water 300mL to be quenched, it is 3 to adjust reaction solution pH with 2mol/L HCl, and filtering, vacuum drying obtains off-white powder production Product32g
Embodiment 5
In reaction bulb, the HCl solution 200mL in 6mol/L is added, then be added portionwise 34g (0.1mol), is heated to 100 DEG C, reaction is stayed overnight, and is spin-dried for reaction dissolvent, then is washed with ether, and vacuum drying obtains off-white color Solid15g
Embodiment 6
In closed reaction bulb, it is added portionwise into POCl3 50g (0.5mol)16g (0.1mol), is slowly heated to 100 DEG C, reaction is stayed overnight, and vacuum is spin-dried for POCl3 and obtains Red oil product16g
Embodiment 7
In the reaction bulb with thermometer and stirring,20g is added to 1,4- dioxane In 100mL, concentrated hydrochloric acid 100mL is slow added into, 100 DEG C are heated to, back flow reaction 2 days is spin-dried for after solvent adding 10 times of volumes Ethyl acetate, wash three times, dry be spin-dried for after obtain brown solid
Embodiment 8
In reaction bulb,18g (0.1mol) is added to 1,4- dioxane 200mL and water 200mL In, then sodium carbonate 30g (0.3mol) and (Boc) is added portionwise2After O 33g (0.15mol), room temperature reaction 10h, TLC monitoring is former Material reaction is complete, filtering reacting liquid, then is washed with ethyl acetate 100mL after filter cake with ethyl acetate 200mL extractive reactions liquid three It is secondary, then washed with sodium chloride solution, dry, rotation reaction solution is obtained20g
Embodiment 9
In reaction solution,28g (0.1mol) is added in DMF 300mL, adds carbonic acid Caesium 50g (0.15mol), KI 20g (0.13mol), room temperature reaction is stayed overnight, and TLC monitoring raw material reactions are complete, add frozen water Reaction solution is quenched in 100mL, and ethyl acetate 200mL extractive reactions liquid three times, saturated nacl aqueous solution 200mL washing reaction liquids are done It is dry, it is spin-dried for, then be beaten with ether, filter, vacuum drying obtains white solid26g embodiments 10
, will in autoclave30g (0.1mol) is added in methanol 300mL, adds catalysis Agent Pd/C 6g, are passed through hydrogen, reacting kettle inner pressure is reached 0.2MPa, are heated to 50 DEG C, back flow reaction 5h, TLC monitoring raw material Reaction is complete, and filtering reacting liquid is spin-dried for after solvent obtaining brown solid27g
Embodiment 12
In reaction bulb, by compound30g (0.1mol) is added in DMF200mL, adds 4- Pyridine carboxaldehyde 12.5 (0.12mol) and triethylamine 10mL, are heated to backflow, monitor former through TLC after reaction a period of time Material reaction is complete, and reaction solution, which is poured into frozen water, has a large amount of solids to separate out, and filter cake drying is obtained compound after suction filtration
Embodiment 13
In reaction bulb, compound40g (0.1mol) is added in DMSO 150mL, then is added Enter hydrazine hydrate 50mL, at ambient temperature reaction a period of time, it is complete through TLC monitoring raw material reactions, reaction solution is poured into frozen water In there are a large amount of solids to separate out, filter cake drying is obtained compound after suction filtration36g
Embodiment 14
In reaction bulb, compound41g (0.1mol) is added in DMSO 150mL, Backflow is heated under Oxygen Condition, reaction a period of time, complete through TLC monitoring raw material reactions, reaction solution, which is poured into frozen water, to be had A large amount of solids are separated out, and filter cake drying is obtained compound after suction filtration33g
Embodiment 15
, will in reaction bulb40g (0.1mol) is added to methanol 400mL's and 12mol/L In HCl/1,4- dioxane 400mL, room temperature reaction is stayed overnight, and TLC monitoring raw material reactions are complete, are spin-dried for, ether washing concentrate, Obtain
Embodiment 16
Nitrogen is being passed through in the ultrasonic response container for being reversely provided with agitating device, is then being added dissolved with compound51g dichloromethane solution 500mL, adds after ammoniacal liquor 100mL, holds in 25 DEG C to ultrasonic response The methanol solution 500mL dissolved with zinc chloride 50g is slowly added dropwise in device, opens agitating device during dropwise addition and ultrasonic wave is filled Put, the setpoint frequency of ultrasonic generator is 80KHz, drip rear solution for clear state, stop stirring, keep ultrasonic wave Generating means works on, and slow cooling opens the steam vent on ultrasonic response container to 0 DEG C of standing reaction solution, keeps logical The nitrogen entered is discharged from steam vent, nitrogen is discharged ultrasonic response container with a certain amount of reaction dissolvent, gradually has colourless Crystal is separated out, and completely, suction filtration reaction solution, filter cake is washed repeatedly to wash away unnecessary zinc salt crystallization with methanol, and filter cake is in room after 5h Obtained after being dried under temperature48g。
Embodiment 15
Pharmacodynamic study
In order to evaluate and compare Tiopronin andPharmacodynamics, using four Chlorination carbon, D-Gal (DAG) cause acute and chronic liver injury model, with transaminase GOT, GPT in serum, total protein T- Hydroxyproline, sialic acid, the change of liver collagen content are turned to liver function change in P, albumin A LB, Archon ratio A/G and tissue Change, the evaluation index of liver tissue fibrosis, and binding of pathological histological examination, are evaluated the pharmacodynamics of the two.Medicine is set Count a series of Isodoses and be compared observation, be administered with injecting pathway, observed in preventive administration and chronic treatment The operative condition of the two, as a result shows under administering mode:
Effect to acute hepatic injury model:
(1) effect of acute liver is caused to carbon tetrachloride:Through note Penetrate after administration, 37.5-150mg/kg can substantially suppress CCl4The rise of serum GOT and GPT caused by caused acute liver damage (P<0.05、P<0.01), showTo CCl4Caused acute liver damage has significantly Protective effect.Under same experimental condition, Tiopronin 150mg/kg is to CCl4Caused acute liver damage equally has notable Protective effect.
(2) effect of acute liver is caused to D-Gal (DAG)
Prevention effect:After being administered through preventive vaccination, high dose 150mg/ Kg can substantially suppress the rise (P of the serum GOT and GPT caused by acute liver damage caused by DAG<0.05、P<0.01), showAcute liver damage caused by DAG can be suppressed, there is significant protective effect.Equally Under experimental condition, Tiopronin 75-150mg/kg equally has significant protective effect to acute liver damage caused by DAG.
Therapeutic action:Treat after 32h,37.5-150mg/kg can substantially press down Rise (the P of serum GPT caused by DAG processed caused by hepatic injury<0.05、P<0.01), showAfter short, there is the restitution of part to the liver function of damage.Same examination Under the conditions of testing, Tiopronin 75-150mg/kg is to hepatic injury caused by DAG, and after short, the liver function to damage equally has There is the restitution of part.
Treat after 7d,37.5-150mg/kg can substantially it suppress caused by DAG Rise (the P of serum GPT, GOT caused by hepatic injury<0.05、P<0.01), show After long-term treatment, there is preferable restitution to the liver function of damage.Under same experimental condition, Tiopronin 37.5-150mg/ Kg is to hepatic injury caused by DAG, after long-term treatment, equally has preferable restitution to the liver function of damage.
Effect to chronic liver damage model:
Continuous drug administration by injection is after 1 month, and 50-100mg/kg dosage makes liter High transaminase ALT, AST significantly reduces (P<0.05、P<0.01), 100mg/kg dosage makes the ALB of reduction significantly raise (P<0.01) ratio (P that, significantly rise A/G is reversed<0.01);25-100mg/kg dosage significantly reduces elevated sialic acid and contained Measure (P<0.01), 100mg/kg dosage significantly reduces elevated hydroxyproline content (P<0.01).ShowChronic liver injury is caused to have significant therapeutic effect in carbon tetrachloride.Same experiment Under the conditions of, Tiopronin 100mg/kg causes chronic liver injury equally to have significant therapeutic effect in carbon tetrachloride.
Conclusion:Drug administration by injection draws for carbon tetrachloride, D-Gal The acute and chronic hepatic injury risen has significant prevention or therapeutic action, and the dosage and intensity of effect are quite or approximate with Tiopronin.
Embodiment above describes general principle, principal character and the advantage of the present invention, the technical staff of the industry should Understand, the present invention is not limited to the above embodiments, the original for simply illustrating the present invention described in above-described embodiment and specification Reason, under the scope for not departing from the principle of the invention, various changes and modifications of the present invention are possible, and these changes and improvements are each fallen within In the scope of protection of the invention.

Claims (7)

1. a kind of preparation method of piperidines of Antihepatitis medicament and pyrido pyrazoles-Zn complex, it is characterised in that specific steps For:
A, N-Boc-4- piperidones and dimethyl carbonate react in the presence of potassium tert-butoxide obtains N-Boc-3- methyl formates -4- Piperidones;
B, N-Boc-3- methyl formate -4- piperidones are under ammonium acetate effect, and ketone carbonyl redox obtains compound into amino N-Boc-3- methyl formate -4- amino -3- alkene-piperidines;
It is anti-that under TEA effects substitution occurs for C, N-Boc-3- methyl formate -4- amino -3- alkene-piperidines and chloroformyl ethyl acetate Compound N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines should be obtained;
Molecule occurs in the presence of potassium tert-butoxide for D, N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines Interior cyclization obtains compoundThen the compound carries out intramolecular hydrogen turn in acid condition Move and carbonyl reduction obtains compound
E、Under strongly acidic conditions, ester group and Boc groups are sloughed in heating, obtain compound
F、Under POCl3 effect, hydroxyl is replaced by chlorine obtains compound
G、Chloro carbon-to-nitrogen double bon is changed into amido link under concentrated hydrochloric acid effect and obtain compound
H、In the basic conditions, Boc amido protectings are carried out and obtains compound
I、Under cesium carbonate effect compound is obtained with iodomethane reaction
J、Reduction carbon-carbon double bond is obtained under Pd/C effects
K、Occur condensation with 4- pyridine carboxaldehydes and obtain compound
L、Compound is obtained with hydration hydrazine reaction
M、Intramolecular cyclization is carried out under Oxygen Condition and obtains compound
N、Slough Boc groups and obtain compound
O、Occur complex reaction with zinc chloride to obtain
2. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that step A detailed process is:In reaction bulb, 1eq N-Boc-4- piperidones is added to the first of 10V volumes In benzene, 2eq dimethyl carbonate and 2eq potassium tert-butoxide are added, 70 DEG C of reaction 1h is heated to, is cooled to room temperature, adds water and quench Go out, it is 7 to adjust reaction solution pH with 1mol/L HCl, ethyl acetate extraction, after anhydrous sodium sulfate drying, be spin-dried for obtaining yellow oil Shape thing N-Boc-3- methyl formate -4- piperidones;Described step B detailed process is:By 1eq N-Boc-3- formic acid first Ester -4- piperidones is added in the methanol of 10 times of volumes, adds 3eq ammonium acetate, and reaction is stayed overnight, and is spin-dried for methanol, adds 3 times Anhydrous sodium sulfate drying is used after the water of volume, dichloromethane extractive reaction liquid, red oily liquids N-Boc-3- is obtained after being spin-dried for Methyl formate -4- amino -3- alkene-piperidines;Described step C detailed process is:By 1eq N-Boc-3- methyl formates -4- Amino -3- alkene-piperidines is added in the DCM of 8 times of volumes, adds 1.05eq TEA, is cooled to 10 DEG C, is added dropwise 1.05eq's 4- chloroformyl ethyl acetate, room temperature reaction is stayed overnight, and adds the DCM dilute reaction solutions of 8 times of volumes, is washed twice, anhydrous slufuric acid Sodium is dried, and is spin-dried for both obtaining Red oil product N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines;It is described Step D detailed process be:1eq N-Boc-3- methyl formate -4- carbamyl ethyl acetate -3- alkene-piperidines is added Into the THF of 10 times of volumes, then 2.0eq t-BuOK is added portionwise, reaction temperature control is added less than 25 DEG C after reaction 1h Frozen water is quenched, and it is 3 to adjust reaction solution pH with 2mol/L HCl, and filtering, vacuum drying obtains off-white powder productDescribed step E detailed process is:In 10eq 6mol/L HCl solution, add in batches Enter 1.0eq's100 DEG C are heated to, reaction is stayed overnight, are spin-dried for reaction dissolvent, then washed with ether Wash, vacuum drying obtains off-white powder
3. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that step F detailed process is:To 5eq POCl3In be added portionwise 1.0eq'sIt is heated to 100 DEG C, reaction is stayed overnight, and is spin-dried for POCl3Obtain Red oil productDescribed step G detailed process For:In the Isosorbide-5-Nitrae-dioxane for being added to 4 times of volumes, the concentrated hydrochloric acid of 4 times of volumes is added, is heated to 100 DEG C, back flow reaction 2 days is spin-dried for adding the ethyl acetate of 10 times of volumes after solvent, washed three times, dries and obtain palm fibre after being spin-dried for Color solidDescribed step H detailed process is:1eq'sIt is added to 10 times of bodies In long-pending Isosorbide-5-Nitrae-dioxane and the water of 10 times of volumes, then 3.0eq sodium carbonate and 1.5eq (Boc) is added portionwise2O, room temperature React after 10h, filtering, then washed with ethyl acetate reaction solution is extracted with ethyl acetate after filter cake, then washed with sodium chloride solution, Dry, rotation reaction solution is obtainedDescribed step I detailed process is:1.0eq'sIn the DMF for being added to 10 times of volumes, 1.5eq Cs is added2CO3, 1.3eq KI, room temperature is anti- It should stay overnight, add frozen water and reaction solution is quenched, ethyl acetate extractive reaction liquid, sodium chloride solution washing is dried, is spin-dried for, then use second Ether is beaten, and filtering, vacuum drying obtains white solid
4. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that step J detailed process is:In autoclave, by 1.0eq'sIt is added to 10 times of bodies Long-pending methanol, a certain amount of Pd/C, is passed through hydrogen, reacting kettle inner pressure is reached 0.2MPa, is heated to 50 DEG C, back flow reaction 5h, TLC monitoring raw material reaction are complete, and filtering reacting liquid is spin-dried for after solvent obtaining brown solidIt is described Step K detailed process be:By compoundAdd in DMF, add 4- pyridine carboxaldehydes and certain The triethylamine of amount, is heated to backflow, complete through TLC monitoring raw material reactions after reaction a period of time, and reaction solution is poured into frozen water There are a large amount of solids to separate out, filter cake drying is obtained compound after suction filtration
5. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that step L detailed process is:In reaction bulb, compoundAdd in DMSO, then A certain amount of hydrazine hydrate is added, at ambient temperature reaction a period of time, it is complete through TLC monitoring raw material reactions, reaction solution is fallen Enter in frozen water to have a large amount of solids to separate out, filter cake drying is obtained compound after suction filtrationDescribed step Suddenly M detailed process is:In reaction bulb, compoundAdd in DMSO, under Oxygen Condition Backflow is heated to, reaction a period of time, complete through TLC monitoring raw material reactions, reaction solution, which is poured into frozen water, there are a large amount of solids to analyse Go out, filter cake drying is obtained compound after suction filtrationDescribed step N detailed process is: 1.0eqIt is added to the methanol of 10 times of volumes and the 12mol/L of 10 volumes HCl/1,4- dioxies In six rings, room temperature reaction is stayed overnight, and is spin-dried for, ether washing, is obtained
6. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that step O detailed process is:Nitrogen, Ran Houjia are passed through into the ultrasonic response container for being provided with agitating device Enter dissolved withDichloromethane solution, add ammoniacal liquor after, in 25 DEG C into ultrasonic response container be added dropwise Dissolved with the methanol solution of zinc chloride, agitating device and ultrasonic generator, ultrasonic generator are opened during dropwise addition Setpoint frequency be 80KHz, drip rear solution for clear state, stop stirring, keep ultrasonic generator to continue Work, is cooled to 0 DEG C of standing reaction solution, opens the steam vent on ultrasonic response container, keep the nitrogen that is passed through from exhaust Hole is discharged, and nitrogen is discharged ultrasonic response container with reaction dissolvent, has crystallization after clear crystal precipitation, 5h completely, to take out Reaction solution is filtered, filter cake is washed repeatedly with methanol to wash away unnecessary zinc chloride, and filter cake is obtained after drying at room temperature
7. the preparation method of a kind of piperidines of Antihepatitis medicament according to claim 1 and pyrido pyrazoles-Zn complex, It is characterized in that the specific synthetic route in preparation process is:
CN201710413835.3A 2017-06-05 2017-06-05 A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex Withdrawn CN107286160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710413835.3A CN107286160A (en) 2017-06-05 2017-06-05 A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710413835.3A CN107286160A (en) 2017-06-05 2017-06-05 A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex

Publications (1)

Publication Number Publication Date
CN107286160A true CN107286160A (en) 2017-10-24

Family

ID=60095193

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710413835.3A Withdrawn CN107286160A (en) 2017-06-05 2017-06-05 A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex

Country Status (1)

Country Link
CN (1) CN107286160A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102574861A (en) * 2009-08-26 2012-07-11 奈科明有限责任公司 Methylpyrrolopyrimidinecarboxamides
CN102917703A (en) * 2010-03-08 2013-02-06 科研制药株式会社 Novel EP4 agonist
CN103058982A (en) * 2011-10-19 2013-04-24 四川大学 Bifendate derivative containing halogen substituent, preparation method and application
CN104610240A (en) * 2015-01-28 2015-05-13 南京工业大学 Bicyclol-carnosine conjugate and preparation method and application thereof
CN104781272A (en) * 2012-06-19 2015-07-15 英特塞普特医药品公司 Preparation, use and solid form of obeticholic acid
CN106083976A (en) * 2012-04-12 2016-11-09 弗吉尼亚联邦大学 For treating dysbolismus, hyperlipemia, diabetes, Fatty Liver Disease and atherosclerotic new cholesterol metabolism thing 5 cholestene 3 β, 25 disulfate (25HCDS)
CN106279332A (en) * 2016-07-29 2017-01-04 北京大学 Triterpenoid compound Antcin K and liver-protecting activity thereof and application

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102574861A (en) * 2009-08-26 2012-07-11 奈科明有限责任公司 Methylpyrrolopyrimidinecarboxamides
CN102917703A (en) * 2010-03-08 2013-02-06 科研制药株式会社 Novel EP4 agonist
CN103058982A (en) * 2011-10-19 2013-04-24 四川大学 Bifendate derivative containing halogen substituent, preparation method and application
CN106083976A (en) * 2012-04-12 2016-11-09 弗吉尼亚联邦大学 For treating dysbolismus, hyperlipemia, diabetes, Fatty Liver Disease and atherosclerotic new cholesterol metabolism thing 5 cholestene 3 β, 25 disulfate (25HCDS)
CN104781272A (en) * 2012-06-19 2015-07-15 英特塞普特医药品公司 Preparation, use and solid form of obeticholic acid
CN104610240A (en) * 2015-01-28 2015-05-13 南京工业大学 Bicyclol-carnosine conjugate and preparation method and application thereof
CN106279332A (en) * 2016-07-29 2017-01-04 北京大学 Triterpenoid compound Antcin K and liver-protecting activity thereof and application

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RONG-GENG FU: "Design, synthesis and bioevaluation of dihydropyrazolo [3,4-b]pyridine and benzo[4,5]imidazo[1,2-a]pyrimidine compounds as dual KSP and Aurora-A kinase inhibitors for anti-cancer agents", 《BIOORGANIC & MEDICINAL CHEMISTRY》 *

Similar Documents

Publication Publication Date Title
CN104130212B (en) A kind of applicable hydrobromic acid irrigates the synthetic method for western spit of fland industrialized production
CN107286131A (en) A kind of Kinase Selectivity inhibitor
CN103896970B (en) 2-piconol copper complex and preparation method and application
CN103073514A (en) Rupestonic acid heterocyclic amide derivative, and preparation method and application of derivative
CN107286160A (en) A kind of preparation method of the piperidines of Antihepatitis medicament and pyrido pyrazoles Zn complex
CN107260719A (en) A kind of preparation method of Antihepatitis medicament piperidines and the diazetidine Zn complex of pyrido 1,2
CN107235973A (en) The preparation method of the adjoining fluorobenzene calcium composition of piperidones chain with pharmaceutical activity
CN107445938A (en) Crystal form, preparation method and the Pharmaceutical composition containing the crystal form of the tartrates of Yi Ligelusita half
CN107163046A (en) The preparation method of pyrido o-diazepamate derivative with anti-tumor function
CN107383070A (en) The preparation method of piperidines with anti-hepatitis function and the adjoining fluorobenzene Zn complex of pyridine chain
CN107325099A (en) The preparation method of piperidines with insecticidal activity and the triazole derivative of 4,5 dihydro of pyrido 1,2,3
CN107245077A (en) The preparation method of piperidines with insecticidal activity and the adjoining fluorobenzene analog derivative of pyridine chain
CN107266442A (en) The preparation method of piperidines with antitumor activity and pyridine compounds and their
CN107286159A (en) The preparation method of piperidines with pharmaceutical activity and chloro-pyridine calcium composition
CN106938989A (en) N- (5- benzyls thiazol-2-yl) acetamide derivative and preparation method and application
CN107266444A (en) The preparation method of piperidines with pharmaceutical activity and pyridine calcium composition
CN110183377A (en) A kind of synthetic method of anticancer drug Rui Gefeini
CN107266443A (en) The preparation method of piperidines with PVC stabilizer function and pyridone tin complex
CN107286161A (en) The preparation method of medicament for resisting platelet aggregation piperidines and the triazole calcium composition of 4,5 dihydro of pyrido 1,2,3
CN107325100A (en) The preparation method of piperidines with insecticidal activity and pyridinone derivatives
CN108329236B (en) A kind of preparation method of enzalutamide intermediate
CN107151247A (en) The preparation method of the adjoining fluorophenyl compound of piperidones chain with bioactivity
CN107151248A (en) The preparation method of piperidine sulfonamide class compound with bioactivity
CN107266445A (en) The piperidines and the preparation method of the triazole tin complex of pyrido 1,2,3 acted on PVC stabilizer
CN107325094A (en) A kind of preparation method of antifungal drug piperidines and the diazetidine derivative of pyrido 1,2

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20171024

WW01 Invention patent application withdrawn after publication