[go: up one dir, main page]

WO2010046929A3 - Novel polymorphic forms of temazepam and processes for preparing the same - Google Patents

Novel polymorphic forms of temazepam and processes for preparing the same Download PDF

Info

Publication number
WO2010046929A3
WO2010046929A3 PCT/IN2009/000589 IN2009000589W WO2010046929A3 WO 2010046929 A3 WO2010046929 A3 WO 2010046929A3 IN 2009000589 W IN2009000589 W IN 2009000589W WO 2010046929 A3 WO2010046929 A3 WO 2010046929A3
Authority
WO
WIPO (PCT)
Prior art keywords
polymorphic forms
temazepam
processes
preparing
same
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/IN2009/000589
Other languages
French (fr)
Other versions
WO2010046929A2 (en
Inventor
Ramakoteswara Rao Jetti
Nageswara Rao Karusala
Radha Krishna Singamsetty
Asha Rani Gorantla
Madhavi Jonnalagadda
Chetan Kanaiyalal Raval
Lakshmana Rao Namburu
Debashish Datta
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.)
Mylan Laboratories Ltd
Original Assignee
Matrix Laboratories 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 Matrix Laboratories Ltd filed Critical Matrix Laboratories Ltd
Publication of WO2010046929A2 publication Critical patent/WO2010046929A2/en
Publication of WO2010046929A3 publication Critical patent/WO2010046929A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
    • C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
    • C07D243/10—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
    • C07D243/14—1,4-Benzodiazepines; Hydrogenated 1,4-benzodiazepines

Landscapes

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

Abstract

Disclosed herein are novel crystalline polymorphic forms Form I, Form II, Form III, Form IV, Form V, Form VI, Form VII, Form VIII, Form IX, Form X and amorphous form of temazepam characterized by X-ray powder diffraction patterns, DSC, TGA and IR. In addition, the invention describes processes for the preparation of the various polymorphic forms.
PCT/IN2009/000589 2008-10-17 2009-10-16 Novel polymorphic forms of temazepam and processes for preparing the same Ceased WO2010046929A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2554CH2008 2008-10-17
IN2554/CHE/2008 2008-10-17

Publications (2)

Publication Number Publication Date
WO2010046929A2 WO2010046929A2 (en) 2010-04-29
WO2010046929A3 true WO2010046929A3 (en) 2011-01-27

Family

ID=42119786

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2009/000589 Ceased WO2010046929A2 (en) 2008-10-17 2009-10-16 Novel polymorphic forms of temazepam and processes for preparing the same

Country Status (1)

Country Link
WO (1) WO2010046929A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296249A (en) * 1963-06-04 1967-01-03 American Home Prod 5-monocyclic aryl-1, 3-dihydro-2h-1, 4-benzodiazepin-2-ones
US4412952A (en) * 1982-04-30 1983-11-01 Sandoz, Inc. Process for 3-hydroxy benzodiazepinones

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3296249A (en) * 1963-06-04 1967-01-03 American Home Prod 5-monocyclic aryl-1, 3-dihydro-2h-1, 4-benzodiazepin-2-ones
US4412952A (en) * 1982-04-30 1983-11-01 Sandoz, Inc. Process for 3-hydroxy benzodiazepinones

Also Published As

Publication number Publication date
WO2010046929A2 (en) 2010-04-29

Similar Documents

Publication Publication Date Title
WO2008068625A3 (en) Processes for preparing cinacalcet hydrochloride and polymorphic forms thereof
WO2009002427A3 (en) Methods of synthesizing cinacalcet and salts thereof
NZ629684A (en) Polymorphic forms of (s)-2-(1-(9h-purin-6-ylamino)propyl)-5-fluoro-3-phenylquinazolin-4(3h)-one
WO2009025873A3 (en) Processes for the preparation of crystalline forms a, b and pure crystalline form a of erlotinib hcl
IL220050A0 (en) Post-operative adjustment tool, minimally invasive attachment apparatus, and adjustable tricuspid ring
EG25740A (en) Process for the preparation of a treated mineral filler product, the obtained mineral filler productand its uses
WO2008070072A3 (en) Carvedilol forms, compositions, and methods of preparation thereof
WO2008021342A3 (en) Amorphous and crystalline forms of 9-hydroxy-risperidone ( paliperidone )
WO2009151899A3 (en) Preparation of imatinib mesylate
WO2011024192A3 (en) Novel polymorphs of raltegravir
IL195757A0 (en) Processes for preparing intermediate compounds useful for the preparation of cinacalcet
WO2009120746A3 (en) Crystalline forms of sitagliptin phosphate
WO2010070677A3 (en) A process for the preparation of prasugrel and its pharmaceutically acceptable salts thereof
WO2010008735A3 (en) Solid states of o-desmethylvenlaf axine salts
WO2012035544A3 (en) A novel polymorphic form of rifaximin and process for its preparation
WO2007098273A3 (en) Novel crystalline forms of armodafinil and preparation thereof
WO2009037538A3 (en) Process for the preparation of lamivudine form i
WO2007141593A3 (en) Process for the preparation of metoprolol and its salts
WO2010027848A3 (en) Forms of lapatinib compounds and processes for the preparation thereof
WO2009025792A3 (en) Crystalline forms cinacalcet fumarate and cinacalcet succinate and processes for preparation thereof
WO2008035360A3 (en) Novel crystalline forms of candesartan cilexetil, candesartan, tritylated candesartan and tritylated candesartan cilexetil
WO2008081041A3 (en) Amorphous and crystalline forms of rivastigmine hydrogentartrate
WO2009122429A3 (en) Crystalline oxybutynin and process for preparing the same
SI2225232T1 (en) Process for the preparation of substituted 1,3-oxathiolanes
WO2010046929A3 (en) Novel polymorphic forms of temazepam and processes for preparing the same

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: 09821702

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: 09821702

Country of ref document: EP

Kind code of ref document: A2