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AU2003269486A1 - An improved process for the preparation of pure nisoldipine - Google Patents

An improved process for the preparation of pure nisoldipine

Info

Publication number
AU2003269486A1
AU2003269486A1 AU2003269486A AU2003269486A AU2003269486A1 AU 2003269486 A1 AU2003269486 A1 AU 2003269486A1 AU 2003269486 A AU2003269486 A AU 2003269486A AU 2003269486 A AU2003269486 A AU 2003269486A AU 2003269486 A1 AU2003269486 A1 AU 2003269486A1
Authority
AU
Australia
Prior art keywords
nisoldipine
pure
preparation
improved process
improved
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.)
Abandoned
Application number
AU2003269486A
Inventor
Sankar Chinnakulandai
Rajaram Sankarasubramaniam
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.)
Sanmar Speciality Chemicals Ltd
Original Assignee
Sanmar Speciality Chemicals 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 Sanmar Speciality Chemicals Ltd filed Critical Sanmar Speciality Chemicals Ltd
Publication of AU2003269486A1 publication Critical patent/AU2003269486A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
    • C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D211/80—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
    • C07D211/84—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen directly attached to ring carbon atoms
    • C07D211/90—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrogenated Pyridines (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU2003269486A 2003-09-11 2003-09-11 An improved process for the preparation of pure nisoldipine Abandoned AU2003269486A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IN2003/000309 WO2005023768A1 (en) 2003-09-11 2003-09-11 An improved process for the preparation of pure nisoldipine

Publications (1)

Publication Number Publication Date
AU2003269486A1 true AU2003269486A1 (en) 2005-03-29

Family

ID=34259924

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003269486A Abandoned AU2003269486A1 (en) 2003-09-11 2003-09-11 An improved process for the preparation of pure nisoldipine

Country Status (2)

Country Link
AU (1) AU2003269486A1 (en)
WO (1) WO2005023768A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102491940B (en) * 2011-11-28 2013-03-06 海南美兰史克制药有限公司 Nisoldipine compound and novel preparation method thereof
CN102976949B (en) * 2012-12-07 2015-01-07 青岛黄海制药有限责任公司 Preparation method of methyl 2-nitrobenzal acetoacetate
CN116425635A (en) * 2020-03-24 2023-07-14 合肥立方制药股份有限公司 A kind of method using combination catalyst to synthesize nifedipine intermediate
CN118771988A (en) * 2024-06-12 2024-10-15 陕西西岳制药(扶风)有限公司 A method for synthesizing nifedipine intermediate 2-(3-nitrobenzylidene)-methyl acetoacetate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4600778A (en) * 1983-04-05 1986-07-15 Bayer Aktiengesellschaft Process for the preparation of 1,4-dihydropyridinedicarboxylic esters
ATE234286T1 (en) * 1993-12-10 2003-03-15 Bayer Ag PHENYL-SUBSTITUTED 1,4-DIHYDROPYRIDINES WITH CEREBRAL ACTIVITY
JPH1175189A (en) * 1997-08-27 1999-03-16 Mitsubishi Electric Corp Image coding method

Also Published As

Publication number Publication date
WO2005023768A1 (en) 2005-03-17

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase