MD142C2 - Procedeu de obţinere a esterului acidului apovincaminic - Google Patents

Procedeu de obţinere a esterului acidului apovincaminic

Info

Publication number
MD142C2
MD142C2 MD94-0159A MD940159A MD142C2 MD 142 C2 MD142 C2 MD 142C2 MD 940159 A MD940159 A MD 940159A MD 142 C2 MD142 C2 MD 142C2
Authority
MD
Moldova
Prior art keywords
apovincaminic
ethyl ester
ester preparation
etherification
acetonitryl
Prior art date
Application number
MD94-0159A
Other languages
English (en)
Russian (ru)
Other versions
MD142B1 (ro
Inventor
Mondelo Fernando Calvo
Original Assignee
Covex, S.A.
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
Priority claimed from ES549105A external-priority patent/ES8604956A1/es
Application filed by Covex, S.A. filed Critical Covex, S.A.
Publication of MD142B1 publication Critical patent/MD142B1/ro
Publication of MD142C2 publication Critical patent/MD142C2/ro

Links

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  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

Invenţia se referă la compuşii heterociclici.Scopul invenţiei constă în majorarea randamentului produsului cu destinaţie specială şi simplificarea procesului.Sinteza este efectuată prin eterificarea acidului apovincaminic cu alcoolul etilic în mediul ace tonitrilului şi procesul se efectuează în prezenţa 2-fluor-1,3,5-treinitrobenzenului şi a 4-dimetilaminopiridinei în calitate de agent de eterificare la temperatura de cameră timp de 3-5 ore.
MD94-0159A 1985-11-20 1994-02-14 Procedeu de obţinere a esterului acidului apovincaminic MD142C2 (ro)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES549105A ES8604956A1 (es) 1985-11-20 1985-11-20 Procedimiento de obtencion del ester etilico del acido apo- vincaminico
SU864028528A SU1435153A3 (ru) 1985-11-20 1986-11-19 Способ получени сложного этилового эфира аповинкаминовой кислоты

Publications (2)

Publication Number Publication Date
MD142B1 MD142B1 (ro) 1995-01-30
MD142C2 true MD142C2 (ro) 1995-07-31

Family

ID=26156125

Family Applications (1)

Application Number Title Priority Date Filing Date
MD94-0159A MD142C2 (ro) 1985-11-20 1994-02-14 Procedeu de obţinere a esterului acidului apovincaminic

Country Status (3)

Country Link
LT (1) LT2245B (ro)
LV (1) LV5257A3 (ro)
MD (1) MD142C2 (ro)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Brevet nr. 2253750, DE, Int. cl. C 07 D 471/22, 1978- *
Brevet nr. 2265138, DE, Int. cl. C 07 471/22, 1977; *

Also Published As

Publication number Publication date
LV5257A3 (lv) 1993-10-10
LT2245B (lt) 1993-11-15
MD142B1 (ro) 1995-01-30

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
IF99 Valid patent on 19990615

Free format text: EXPIRES: 20061118