[go: up one dir, main page]

WO2009084023A3 - Amorphous ramelteon and process for the preparation thereof - Google Patents

Amorphous ramelteon and process for the preparation thereof Download PDF

Info

Publication number
WO2009084023A3
WO2009084023A3 PCT/IN2008/000679 IN2008000679W WO2009084023A3 WO 2009084023 A3 WO2009084023 A3 WO 2009084023A3 IN 2008000679 W IN2008000679 W IN 2008000679W WO 2009084023 A3 WO2009084023 A3 WO 2009084023A3
Authority
WO
WIPO (PCT)
Prior art keywords
ramelteon
amorphous
preparation
dissolving
solution
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.)
Ceased
Application number
PCT/IN2008/000679
Other languages
French (fr)
Other versions
WO2009084023A2 (en
Inventor
Khan Mubeen Ahmed
Arvindbhai Patel Dharmesh Kumar
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.)
Glenmark Generics Ltd
Original Assignee
Glenmark Generics Ltd
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 Glenmark Generics Ltd filed Critical Glenmark Generics Ltd
Publication of WO2009084023A2 publication Critical patent/WO2009084023A2/en
Anticipated expiration legal-status Critical
Publication of WO2009084023A3 publication Critical patent/WO2009084023A3/en
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/93Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems condensed with a ring other than six-membered

Landscapes

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

Abstract

The present invention provides ramelteon substantially in an amorphous form and a process for its preparation, by preparing solution of ramelteon by dissolving in one or more solvents capable of dissolving the ramelteon; and substantially removing the solvent from the solution to provide amorphous ramelteon
PCT/IN2008/000679 2007-10-19 2008-10-16 Amorphous ramelteon and process for the preparation thereof Ceased WO2009084023A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2081MU2007 2007-10-19
IN2081/MUM/2007 2007-10-19

Publications (2)

Publication Number Publication Date
WO2009084023A2 WO2009084023A2 (en) 2009-07-09
WO2009084023A3 true WO2009084023A3 (en) 2011-09-22

Family

ID=40824838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000679 Ceased WO2009084023A2 (en) 2007-10-19 2008-10-16 Amorphous ramelteon and process for the preparation thereof

Country Status (1)

Country Link
WO (1) WO2009084023A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008151170A2 (en) 2007-05-31 2008-12-11 Teva Pharmaceutical Industries Ltd. Process for the synthesis of ramelteon and its intermediates
WO2011009102A1 (en) * 2009-07-16 2011-01-20 Vanda Pharmaceuticals Inc. Use of a melatonin agonist for the treatment of sleep disorders including primary insomnia
US11918557B2 (en) 2012-01-26 2024-03-05 Vanda Pharmaceuticals Inc. Treatment of circadian rhythm disorders
WO2013112949A2 (en) 2012-01-26 2013-08-01 Vanda Pharmaceuticals Inc. Treatment of circadian rhythm disorders
BR112015014619A2 (en) 2012-12-18 2017-07-11 Vanda Pharmaceuticals Inc treatment of circadian rhythm disorders
US11090285B2 (en) 2013-11-12 2021-08-17 Vanda Pharmaceuticals Inc Treatment of circadian rhythm disorders
US10376487B2 (en) 2013-11-12 2019-08-13 Vanda Pharmaceuticals Inc. Method of treatment
JP7407364B2 (en) * 2019-02-12 2024-01-04 日本ジェネリック株式会社 Ramelteon-containing solid preparation
WO2025211383A1 (en) * 2024-04-03 2025-10-09 株式会社ダイセル Functional material containing 8-prenylnaringenin, oral composition, food and drink, atrogin-1 expression inhibitor, and functional material composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2612090A1 (en) * 2005-06-22 2006-12-28 Takeda Pharmaceutical Company Limited Tablet containing hardly soluble active ingredient
WO2007020337A1 (en) * 2005-08-19 2007-02-22 Sanofi-Aventis Combination of a long-acting hypnotic agent and a short-acting hypnotic agent and therapeutic use of same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2612090A1 (en) * 2005-06-22 2006-12-28 Takeda Pharmaceutical Company Limited Tablet containing hardly soluble active ingredient
WO2007020337A1 (en) * 2005-08-19 2007-02-22 Sanofi-Aventis Combination of a long-acting hypnotic agent and a short-acting hypnotic agent and therapeutic use of same

Also Published As

Publication number Publication date
WO2009084023A2 (en) 2009-07-09

Similar Documents

Publication Publication Date Title
WO2009084023A3 (en) Amorphous ramelteon and process for the preparation thereof
GB2474311B (en) Low temperature, single solvent process for the production of sucrose-6-ester
AP2010005169A0 (en) A novel non-aqueous topical solution of diclofenacand process for preparing the same
WO2011019986A3 (en) Processes for preparing pemetrexed
WO2010102980A8 (en) Process for preparing substituted 2-nitrobiphenyls
WO2012061037A3 (en) Method for preparing small crystal ssz-32
PL2595974T3 (en) An improved process for recovery of maleic anhydride by using organic solvent
EP2580162A4 (en) Method for recovering gold by solvent extraction
WO2010108124A3 (en) Fluid formulations for electric-field-driven spinning of fibers
WO2010076810A3 (en) A process for the preparation of gefitinib
WO2009138847A3 (en) An improved process for the preparation of cefozopran
WO2010120058A3 (en) Novel cyanine compound for labelling biomolecules, and preparation method thereof
WO2014041566A3 (en) Improved process for the preparation of metformin hydrochloride
WO2010028105A3 (en) Amorphous pemetrexed disodium
UA113668C2 (en) A method of preparing a highly pure potassium salt of azilsartan medoxomil
EP2636676A3 (en) Crystallization of epidaunorubicin x HCl
WO2011039459A3 (en) Suspensions of hexanitrohexaazaisowurtzitane crystals, production of said suspensions and production of pyrotechnic objects
WO2013065070A8 (en) Amorphous form of cabazitaxel and process for its preparation
WO2008155780A3 (en) Improved process for the preparation of pure rabeprazole
WO2007011951A3 (en) Purification of paricalcitol
WO2012050315A3 (en) Azetidinium salt as fp-cit precursor, method for selectively preparing same, and fp-cit synthesis
DK2427662T3 (en) Process for removing pesticides from Ginkgo biloba extracts and extracts obtainable by the process
WO2009098147A3 (en) Conjugated molecules comprising a peptide derived from the cd4 receptor coupled to a polyanion for the treatment of aids
WO2008023331A3 (en) New nanoporous crystalline form of syndiotactic polystyrene, processes for its preparation and related molecular-complex crystalline forms
GB2487515B (en) Electrodialysis-distillation hybrid process for the recovery of dimethylsulfoxide (DMSO) solvent from industrial effluent

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08867048

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08867048

Country of ref document: EP

Kind code of ref document: A2