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EP3759081A4 - IMPROVED PROCESS FOR THE PREPARATION OF PROPIOMAZINE MALEATE - Google Patents

IMPROVED PROCESS FOR THE PREPARATION OF PROPIOMAZINE MALEATE Download PDF

Info

Publication number
EP3759081A4
EP3759081A4 EP19760246.9A EP19760246A EP3759081A4 EP 3759081 A4 EP3759081 A4 EP 3759081A4 EP 19760246 A EP19760246 A EP 19760246A EP 3759081 A4 EP3759081 A4 EP 3759081A4
Authority
EP
European Patent Office
Prior art keywords
preparation
improved process
propiomazine
maleate
propiomazine maleate
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.)
Pending
Application number
EP19760246.9A
Other languages
German (de)
French (fr)
Other versions
EP3759081A1 (en
Inventor
Kannasani RAVI KUMAR
Kasa Mallik Yadav
Mula SREENU
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.)
Cohance Lifesciences Ltd
Original Assignee
RA Chem Pharma 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 RA Chem Pharma Ltd filed Critical RA Chem Pharma Ltd
Publication of EP3759081A1 publication Critical patent/EP3759081A1/en
Publication of EP3759081A4 publication Critical patent/EP3759081A4/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D279/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom and one sulfur atom as the only ring hetero atoms
    • C07D279/10—1,4-Thiazines; Hydrogenated 1,4-thiazines
    • C07D279/14—1,4-Thiazines; Hydrogenated 1,4-thiazines condensed with carbocyclic rings or ring systems
    • C07D279/18—[b, e]-condensed with two six-membered rings
    • C07D279/22—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom
    • C07D279/24—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom with hydrocarbon radicals, substituted by amino radicals, attached to the ring nitrogen atom
    • C07D279/28—[b, e]-condensed with two six-membered rings with carbon atoms directly attached to the ring nitrogen atom with hydrocarbon radicals, substituted by amino radicals, attached to the ring nitrogen atom with other substituents attached to the ring system
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/41—Preparation of salts of carboxylic acids
    • C07C51/412—Preparation of salts of carboxylic acids by conversion of the acids, their salts, esters or anhydrides with the same carboxylic acid part

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Nitrogen- Or Sulfur-Containing Heterocyclic Ring Compounds With Rings Of Six Or More Members (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
EP19760246.9A 2018-02-27 2019-02-18 IMPROVED PROCESS FOR THE PREPARATION OF PROPIOMAZINE MALEATE Pending EP3759081A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201841007386 2018-02-27
PCT/IN2019/050128 WO2019167058A1 (en) 2018-02-27 2019-02-18 An improved process for the preparation of propiomazine maleate

Publications (2)

Publication Number Publication Date
EP3759081A1 EP3759081A1 (en) 2021-01-06
EP3759081A4 true EP3759081A4 (en) 2022-01-05

Family

ID=67804887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19760246.9A Pending EP3759081A4 (en) 2018-02-27 2019-02-18 IMPROVED PROCESS FOR THE PREPARATION OF PROPIOMAZINE MALEATE

Country Status (2)

Country Link
EP (1) EP3759081A4 (en)
WO (1) WO2019167058A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118598824B (en) * 2024-06-03 2025-05-16 海南海和制药有限公司 A kind of synthetic method of promethazine hydrochloride

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *

Also Published As

Publication number Publication date
EP3759081A1 (en) 2021-01-06
WO2019167058A1 (en) 2019-09-06

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Owner name: COHANCE LIFESCIENCES LIMITED