[go: up one dir, main page]

IE832459L - Platinum diamine complexes. - Google Patents

Platinum diamine complexes.

Info

Publication number
IE832459L
IE832459L IE832459A IE245983A IE832459L IE 832459 L IE832459 L IE 832459L IE 832459 A IE832459 A IE 832459A IE 245983 A IE245983 A IE 245983A IE 832459 L IE832459 L IE 832459L
Authority
IE
Ireland
Prior art keywords
platinum
formula
group
diamine complex
diamine
Prior art date
Application number
IE832459A
Other versions
IE56124B1 (en
Original Assignee
Tno
Natuurwetenschappelijk Onderzo
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 Tno, Natuurwetenschappelijk Onderzo filed Critical Tno
Publication of IE832459L publication Critical patent/IE832459L/en
Publication of IE56124B1 publication Critical patent/IE56124B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0086Platinum compounds
    • C07F15/0093Platinum compounds without a metal-carbon linkage
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/28Compounds containing heavy metals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Medicinal Chemistry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Epidemiology (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

This invention relates to novel platinum compounds, a method for the preparation thereof, a pharmaceutical composition using the novel compounds and a method for the treatment of cancer using the pharmaceutical composition, wherein the platinum-(II)-diamine complexes are characterized by the formula <IMAGE> wherein R1 and R2 are both ethyl or together with the carbon atom, to which they are bonded, a cyclohexyl group, R3 and R4 are both a hydrogen atom and X is a malonate group, an ethylmalonate group, a hydroxymalonate group, a carboxyphthalate group, a bischloro acetate group, a cyclobutane-1,1-dicarboxylate group, a dinitrate group or an oxalate group or a sodium salt of these groups. [GB2128615A]

Description

b 6 I '4 4 % The invention relates to novel platinum-diamine complexes, and to a pharmaceutical composition using such a platinum-diamine complex Tor the treatment of cancer, for example, malignant swellings and malignant tumors, as well 5 as to a shaped composition obtained by using this process- Such platinum-diamine complexes are known from the article by A.P. Zipp and S.G. Zipp, J.Chem.Ed., 54 (12), (1977), page 739, tsrhich describes the application of cis-platinum diamine dichloride (POD) for the treatment of cancer* 10 It is mentioned that the platinum compounds have a broad spectrum of activity as antitumor agentsp but also that they have serious drawbacks, in particular that they are toxic to the kidneys. As method for counteracting the kidney toxicity a cis-platinum diamine dichloride is often 15 used in combination with another substance or administered with large quantities of liquid or other techniques are used to bring about an adequate flovi-through of the kidneys. A number of other platinum amine complexes are known including compounds having the formula 2 of the formula 2Q sheet.
Wadley Medical Bulletin, l/ol. 7, No. 1, pp. 114-134, discloses a large number of platinum diamine complexes, including cis-platinum diamine dichloride, for the treatment of cancer. Here, too, the kidney toxicity is stated as the 25 most important drawback of these compounds.
Chem. and Eng. News, 6th, June 1977, pp. 29-30, also describes cis-platinum diamine chloride and its application for the treatment of cancer. Kidney toxicity is also mentioned as the most important drawback of these compounds. 2s In an article in Cancer Chemotherapy Reports Part 1, Vol. 59, No. 3, Nay/June 1975, pp. 629-641, the kidney toxicity of cis-platinum-II-diamine dichloride is also reported. Because of the tonicity of PDD to the kidney 5 and its low therapeutic index, other platinum complexes for the treatment of cancer have been sought. For this-purpose combinations of cis-platinum diamine-II-dichloride with other chemotherapeutic agents were tested; novel platinum complexes were also tried, but they were found 10 to be toxic. It was found, for instance, that although cis-di'chloro-biscvclopentyl amine platinum(II) is only slightly toxic to the kidneys, it is toxic to the spleen. So-called "platinum blues"s a mixture of different amounts of five or more inseparable components have also been dis-15 closed for the treatment of cancer.
Dutch Patent Applications 73,04880; 73,04881; 73,04882 and 77,03752 disclose a large number of platinum diamine complexes, including the compound having formula 2 of the formula sheet. In all of thsse compounds with e nucleus, 20 nitrogen atoms are linked directly to the nucleus. The compounds of the first three Dutch applications were compared with cis-platinum diamine dichloride and were found to have better effects. None of the patent applications states anything about kidney toxicity. 25 jn Dutch Patent Application 79,04740 platinum diamine complexes are describedg which are characterized by the formula 1 of the formula sheet, wherein Rj and Rj are independently of each other a hydrogen atom or a substituted or unsubstituted alkyl, cycloalkyl, aryl or aralkyl group/ 30 while R^ and Rg may be together a substituted or unsubsti-tuted cycloalkyl group, Rj and R& independently of each other are a hydrogen atom or a substituted or unsubstituted alkyl, aryl or aralkyl group, and X is an anionic group.
Now novel platinum diamine complexes have been found, 35 which have the formula 1 of the formula sheet, wherein Rj and R? are both an ethyl group or together with the 0 carton atom, to which thsy ?re bonded, a cyclohexyl group, R3 and are both a hydrogen atom and both groups X are the same and are. each a nitrate group or a chloroacetate group.
The invention further relates to a process for the 5 preparation in a way known per se of these compounds, to a process for the preparation of a medical composition, wherein these compounds are used as active substance, as well as to the so-obtained shaped medical composition.
An extensive research program carried out by the 10 National Cancer Institute, Bethesda, U.S.A., and the European Organization for Research on the Treatment of Cancer, Brussels, Belgium, has shoum that the compounds according to this invention display a high therapeutic activity against cancer in contradiction to the platinum 15 complexes known up to now and used in practice for the combat of cancer, like the cis-platinum diamine dichloride (POD), therein it el so appeared that the compounds according to the invention shot# little or none kidney toxicity.
As it appears from the therapeutical activity values, 20 mentioned in table A, the novel compounds show an important anti-tumor activity against a large number, of different types of tumors, 3uch as P3BB lymphocytic leukemia (PS), 1-1210 lymphoid leukemia (IE), ependymoblastoma and B16 melanocarcinoma (81). The therapeutical activity of the 25 relative novel compounds is higher than that of the cis-platinum diamine dichloride (PDD) which is us?»d as experimental clinical chemotherapeuticum.
A very serious drawback of the PDD used in practice, as oell of ell other plaiinu£»-lI-cotiiplexes with anti-cancer 30 activity and known up to now (with the exception of those, which are described in the Dutch Patent Application 79,04740) is es a 1 reedy mentioned the high tonicity of these compounds, s oT which the kidney toxicity is the most dangerous and in fact limiting for the dose, which can be used in practice.
Surprisingly the compounds according to the invention do not show detrimental side effects on the kidneys. This 5 was demonstrated by means of histological research of rats alter treatment of tonic doses of the compounds described herein be low, while in a similar research with POD serious kidney damages were found.
The new complexes also have no prejudicial influence on 10 the activity of the kidneys. A generally recognized, significant method for the determination of kidney toxicity relates to the evaluation of the percentage urea nitrogen in the blood (blood urea nitrogen, BUN)e also indicated as non-protein nitrogen (non protein nitrogen, NPN). IS It further appears that the compounds according to the invention have no single influence on the urea-nitrogen contents in the blood. As well for doses corresponding raith the LD^q amount as with the LDjQ amount the urea-nitrogen contents in the blood are identical to the control 20 values. The compound PDD, on the contrary, gives at a LD1Q dose after the indicated times already a four times increase of the urea-nitrogen contents, while this at a LDjg dose is increased with a factor of not less than 11. s Table fl finti-cencerous activity An wiceB dose/injection rag/kg T/C (K) 5 formula -4 BDT 1 LE 5,00 207 formula 5 BOF 1 8 229 a: Ho re detailed information concerning the testing procedure and interpretation, victe Instruction 16, Screening data sununary interpretation artd outline of current screen, Maryland, 2001A, 1977. 10 b: 02 - liiouss code B^D^F^ (BOF,); 03 s ftouse code C 57 BL/6; 06 = raouss code CD,F, (COF^). c: PS = P 388 lymphocytic leulamia; LE s L 1210 Lymphoid leukemia; EM - epgndymoblasioma; Bj s 8,^ (?alano~carcinoma. d: Period of survival is the ratio of survival tines of the treated mice 15 (T) to untreated mice (C); the therapeutic activity is significant at T/C * 125.
LE/cis-POO means resistant to cis-POD. f The preparation of the above mentioned compounds is illustrated in the following examples.
The compounds were prepared according to the method of S.C. Dhara: Indian J.Cheia. 8„ 193 (1970). 5 Preparation Exanple Cis=d ichloro-1.1-d i (esiinoma thvl) cyclohexane ola tinum( 11) having the formula 3 of the formula sheet.
To s solution of 16 9 E-t^PtCl^ in 160 ml of water a solution of 26.6 g KI in 20 ml of siater were added and the 10 mixture »es heated for 5 min. in e mater bath.
Hereupon £.6 g 191-di(aminoraethy1) cyclohexane mere added and after the mixture had been stirred for 5 uiinutes, the precipitate «as sucked and urashed three times with hot water, twice with cold ethyl alcohol and twice with ether. j5 11.0 9 of this formed diiodo derivative ware added to a solution of 6.6 g AgNOj in 68 ml water.
Aftarr the mixture had been stirred for 10 minutes at 95-lQ0°Ci, the Ag* was filtered off and washed with «ater. To the clear filtrete 3„28 g KC1 were added and the mixture 20 was stirred for 12 snin. at 95-100°C. After the mixture had been cooled, the precipitate was sucked end washed with water.
Yield: 6.0 g.
Analysis (percentage by veight): 25 Calculated: C: 23.53; H: 6.65; f*l; 6.87; PT: 67.80 found: 23.32; 6.66; 6.66; 67.63.
Example I Cis-l.l-ditaminomethvl)-cyclohe Kane-bis(chloro scetate)-platinum(II), having the formula 4. 1.6 9 of the dichloro derivative prepared according to the Preparation Example (formula 3), were added to a solution of 1.28 g A^N03 in 25 ml of water.
After stirring the mixture during 1 hour at &0°C the AgCl aas filtered off and cashed with water.
To the clear filtrate a solution of 0.73 g monochloro acetic acid end 0,45 g KOH in 25 ml water was added and the mixture was stirred during 2 hours at room temperature. The precipitate was sucked off and washed with stater.
Vield: 1.3 g (65 weight «).
Analysis (weight %): Calculated: C: 27.49; H: 4.23; H: 5.34; found: 27.63; 4.21} 5.55. © 10 15 Example 2 Cis-l.l-bis(emi none thvl )cvcloheaane pla t ir>ue>( 1 S )ni t ra ta „ having the formula 5. & 9 cis-dichloro-1» l-bis(aiainoBe thy 1 )cye.l.ohesene platinum (31) (0.0097 mole) weye suspended in 30 ml distilled water.
To this 3.1 g AgWOj (0.0182 mole) were added and subsequently the mixture mas heated during 1 hour at 40°C while light was excluded.
The formed silverchloride sss filtered off end cashed with distilled water (10 ml).
The clear filtrate mas evaporated under reduced pressure. Weight solid substance: 4.17 g (93.5 weight %). : explodes at about 240°C; decomposes slowly at temperatures below 240°C. : calcul.: C:20.Q3; H:3.93; N:12.14 found : 20.9 ; 4.1 ; 11.9 .
Helting point Analysis (weight Z) 20 25 H-NHR-spectrura CH, (ring) CH2 (NH2) MH2 satellites '95 ' ""pt- H n DH$0-d, (Varisn T60) with respect to TMS: W ] .37 ppm 2.30 ppm 5.67 ppm 5.20 ppm £.18 ppm 56 HZ <* I ®

Claims (14)

CLAIMS:
1. A platinum-(II)-diamine complex having the formula 1 of the formula sheet, wherein Rj and are both ethyl or together with 5 the carbon atom to which they are bonded, a cyclohexyl group, Rj and Rfi are both a hydrogen atom and both groups X are identical and are each a nitrate group or a chloroacetate group.
2. A platinum diamine complex according to 10 claim 1 having the formula 4 of the formula sheet.
3. A platinum diamine complex according to claim 1 having the formula 5 of the formula sheet. 15
4. A process for the preparation of a medical composition for the treatment of cancer, which comprises using a platinum-(II)- diamine complex having the formula 1, wherein Rj, > Rj. R^ and X 20 have the meaning mentioned in claim 1.
5. ft process according to claim 4, wherein, as platinum-(II)-diamine complex,the compound having the formula 4 is used.
6. A process according to claim 4, 25 wherein, as platinum-(II)-diamine complex,the compound having the formula S is used.
7. A process soY the preparation of a platinum-(11)-diamine complex as claimed in any one of claims 1 to 3, which comprises preparing a * ( 11 platinura-(Il J-diaaine coapleit having the foraula 1, therein R^, R2» aj» R4 ®nd x haw® the ®®snin8 mentioned in claia 1, in a way known per se.
8. A process according to clais 7, wherein a compound having the formula 4 of the formula sheet is prepared.
9. A process according to claim 7, wherein a compound having the formula 5 of the formula sheet is prepared.
10. k pharmaceutical composition for the treatment of cancer, which comprises a platinum (11) diamine comp3.es as claimed in any one of claims 1 to 3, together with a pharmaceutical^ acceptable diluent or carrier.
11. A process as claimed in claim 7, substantially as hereinbefore described with reference to any one of the Examples.
12. A platinum-(II)-diamine complex according to claim 1, substantially as hereinbefore described with particular reference to the accompanying Examples
13. A platinum-(II)-diamine complex according to claim 1, whenever prepared by a process claimed in any one of claims 7-9 or claim 11.
14. A pharmaceutical composition according to claim 10, substantially as hereinbefore described. F. R. KELLY & CO., AGENTS FOR THE APPLICANTS
IE2459/83A 1982-10-21 1983-10-20 Platinum diamine complexes IE56124B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8204067A NL8204067A (en) 1982-10-21 1982-10-21 PLATINUM DIAMINE COMPLEXES, METHOD FOR PREPARING THE SAME, METHOD FOR PREPARING A MEDICINAL PRODUCT USING SUCH PLATINADIAMINE COMPLEX FOR THE TREATMENT OF CANCER, PREVENTLY PREVENTED.

Publications (2)

Publication Number Publication Date
IE832459L true IE832459L (en) 1984-04-21
IE56124B1 IE56124B1 (en) 1991-04-24

Family

ID=19840444

Family Applications (1)

Application Number Title Priority Date Filing Date
IE2459/83A IE56124B1 (en) 1982-10-21 1983-10-20 Platinum diamine complexes

Country Status (28)

Country Link
JP (1) JPS5993091A (en)
KR (1) KR910002536B1 (en)
AT (1) AT390610B (en)
AU (1) AU562964B2 (en)
BE (1) BE898058A (en)
CA (1) CA1229618A (en)
CH (1) CH658244A5 (en)
CS (1) CS242888B2 (en)
DD (1) DD217522A5 (en)
DE (1) DE3337333A1 (en)
DK (2) DK483083A (en)
ES (1) ES8406498A1 (en)
FI (1) FI76351C (en)
FR (1) FR2534907B1 (en)
GB (1) GB2128615B (en)
GR (1) GR79652B (en)
HU (1) HU188035B (en)
IE (1) IE56124B1 (en)
IT (1) IT1169858B (en)
LU (1) LU85054A1 (en)
NL (1) NL8204067A (en)
NO (1) NO171276C (en)
NZ (1) NZ206018A (en)
PH (1) PH24077A (en)
PT (1) PT77542B (en)
SE (1) SE8305783L (en)
YU (1) YU43554B (en)
ZA (1) ZA837857B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4786725A (en) * 1982-06-28 1988-11-22 Engelhard Corporation Solubilized platinum (II) complexes
US4758588A (en) * 1983-06-20 1988-07-19 Research Corporation Technologies Diaminocyclohexane platinum complexes
US4661516A (en) * 1983-06-20 1987-04-28 Research Corporation Diaminocyclohexane platinum complexes
EP0169645A1 (en) * 1984-06-27 1986-01-29 Johnson Matthey Public Limited Company Platinum co-ordination compounds
DE3432320A1 (en) * 1984-09-03 1986-03-13 Behringwerke Ag, 3550 Marburg CIS-PLATINUM COMPLEXES WITH A PENTAERYTHRITE DERIVATIVE AS A LIGAND, METHOD FOR THE PRODUCTION THEREOF AND PHARMACEUTICAL AGENT CONTAINING THESE COMPOUNDS
HU193809B (en) * 1984-09-12 1987-12-28 Chugai Pharmaceutical Co Ltd Process for producing new platinum complexes
US4737589A (en) * 1985-08-27 1988-04-12 Nippon Kayaku Kabushiki Kaisha Platinum Complexes
US4880790A (en) * 1986-01-31 1989-11-14 American Cyanamid Company (Gem-heterocyclodimethanamine-N,N')platinum complexes
US4760157A (en) * 1986-01-31 1988-07-26 American Cyanamid Company (2,2,-bis(aminomethyl)-1,3-propanediol-N,N')platinum complexes
DE3630497A1 (en) * 1986-09-08 1988-03-10 Behringwerke Ag CIS-PLATINUM COMPLEXES, METHOD FOR THE PRODUCTION THEREOF AND PHARMACEUTICAL AGENTS CONTAINING THESE COMPOUNDS
ATE53217T1 (en) * 1986-10-03 1990-06-15 Asta Pharma Ag DIAMININE-PLATINUM (II) COMPLEX COMPOUNDS WITH A HYDROXYLATED 2-PHENYL-INDOLE RING.
JPS63203692A (en) * 1987-02-19 1988-08-23 Nippon Kayaku Co Ltd Novel platinum complex
AT390065B (en) * 1987-10-08 1990-03-12 Behringwerke Ag cis-Platinum complexes, process for their preparation and pharmaceutical compositions containing these compounds
NL8802150A (en) * 1988-08-31 1990-03-16 Tno PLATINUM (II) DIAMINE COMPLEX, PROCESS FOR PREPARING THIS COMPOUND, PREPARATION WITH ANTI-TUMOR EFFECT, CONTAINING THIS COMPOUND AND FORMED PREPARATIONS WITH ANTI-TUMOR EFFECT.
NL8802149A (en) * 1988-08-31 1990-03-16 Tno PLATINUM (IV) DIAMINE COMPLEX, METHOD FOR PREPARING THIS COMPOUND, PREPARATION WITH ANTI-TUMOR EFFECT, CONTAINING AT LEAST A PLATINUM COMPOUND, AND FORMED PREPARATIONS WITH ANTI-TUMOR EFFECT.
CN102924528B (en) * 2012-10-29 2015-04-15 东南大学 Anti-tumor bivalent platinum complex and preparation method for complex and ligand of complex

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115418A (en) * 1976-09-02 1978-09-19 Government Of The United States Of America 1,2-diaminocyclohexane platinum (ii) complexes having antineoplastic activity
US4206226A (en) * 1977-08-29 1980-06-03 The United States Of America As Represented By The Department Of Health, Education And Welfare Use of 4-carboxy-phthalato-(1,2-diaminocyclohexane)-platinum(II) and alkali metal salts thereof in alleviating L1210 murine leukemia
NL189358C (en) * 1978-07-06 1993-03-16 Tno PROCESS FOR PREPARING A MEDICINE FOR THE TREATMENT OF CANCER, AND AN PLATINUM-DIAMMINE COMPLEX DERIVED FROM A 1,3-ALKANE DIAMINE.
NL7807334A (en) * 1978-07-06 1980-01-08 Tno PLATINUM DIAMINE COMPLEXES, METHOD FOR PREPARING THE SAME, METHOD FOR PREPARING A MEDICINAL PRODUCT USING SUCH A PLATINUM DIAMOND COMPLEX FOR THE TREATMENT OF CANCER, SO PREVENTLY DRIVED.
AU538863B2 (en) * 1980-05-27 1984-08-30 Bristol-Myers Company Platinum complex salts have anti-tumor property
US4322362A (en) * 1980-07-28 1982-03-30 Bristol-Myers Company Salts of 2-hydroxymalonate platinum complexes

Also Published As

Publication number Publication date
GB2128615B (en) 1986-07-16
ZA837857B (en) 1984-06-27
NL8204067A (en) 1984-05-16
IT8323359A0 (en) 1983-10-19
FI833842A0 (en) 1983-10-20
YU210783A (en) 1986-08-31
GR79652B (en) 1984-10-31
AU562964B2 (en) 1987-06-25
ATA373083A (en) 1989-11-15
FI76351C (en) 1988-10-10
AT390610B (en) 1990-06-11
GB2128615A (en) 1984-05-02
IT1169858B (en) 1987-06-03
KR910002536B1 (en) 1991-04-23
PT77542B (en) 1986-02-12
NO833825L (en) 1984-04-24
SE8305783L (en) 1984-04-22
DK75592D0 (en) 1992-06-09
NO171276B (en) 1992-11-09
AU2027583A (en) 1984-05-03
CS242888B2 (en) 1986-05-15
CS775283A2 (en) 1985-08-15
HU188035B (en) 1986-03-28
CA1229618A (en) 1987-11-24
FI76351B (en) 1988-06-30
NO171276C (en) 1993-02-17
JPS5993091A (en) 1984-05-29
DD217522A5 (en) 1985-01-16
ES526670A0 (en) 1984-07-01
KR840006492A (en) 1984-11-30
DK75592A (en) 1992-06-09
FI833842L (en) 1984-04-22
FR2534907B1 (en) 1988-08-19
IE56124B1 (en) 1991-04-24
BE898058A (en) 1984-04-24
DE3337333A1 (en) 1984-04-26
PH24077A (en) 1990-03-05
DK483083A (en) 1984-04-22
FR2534907A1 (en) 1984-04-27
DK483083D0 (en) 1983-10-20
JPH0244479B2 (en) 1990-10-04
ES8406498A1 (en) 1984-07-01
YU43554B (en) 1989-08-31
NZ206018A (en) 1986-02-21
LU85054A1 (en) 1984-03-22
SE8305783D0 (en) 1983-10-20
PT77542A (en) 1983-11-01
CH658244A5 (en) 1986-10-31
GB8328084D0 (en) 1983-11-23

Similar Documents

Publication Publication Date Title
US4410544A (en) Platinum-diamine complexes, a method for the preparation of a medicine using such a platinum-diamine complex for the treatment of malignant tumor in mice
US4431666A (en) Platinum(IV)-diamine complexes, a process for the preparation thereof, a process for the preparation of a medicine using such a platinum(IV)-diamine complex for the treatment of malignant tumors in mice
IE832459L (en) Platinum diamine complexes.
EP0155705B1 (en) Antitumor platinum complexes
US4466924A (en) Platinum-diamine complexes, a process for the preparation thereof, a process for the preparation of a medicine using such a platinum-diamine complex for the treatment of malignant tumors in mice as well as a medicine thus formed
US4200583A (en) New platinum complex
Hoeschele et al. Synthesis, structural characterization, and antitumor properties of a novel class of large-ring platinum (II) chelate complexes incorporating the cis-1, 4-diaminocyclohexane ligand in a unique locked boat conformation
RU2039064C1 (en) Four-coordination complexes of divalent platinum
US4599352A (en) Antineoplastic platinum (IV) complexes and compositions
CA2027792A1 (en) Water and solvent soluble axial hydroxy and mono- and di-carboxylic acid derivatives having high tumor activity
Morikawa et al. Synthesis and antitumor activities of platinum complexes of unsymmetrical alicyclic diamines as carrier ligands
CA1196004A (en) Platinum-diamine complexes, a method for the preparation thereof, a method for the preparation of a medicine using such a platinum-diamine complex for the treatment of cancer as well as a medicine thus formed
EP0214862B1 (en) Anti-tumour platinum complexes, their preparation and their use
EP0409894A1 (en) Platinum-amine-sulfoxides as anti-tumor agents
NL8302115A (en) New platinum 1,3-di:amine complexes - useful as antitumour agents

Legal Events

Date Code Title Description
MM4A Patent lapsed