DK479380A - ANALOGY PROCEDURE FOR THE PREPARATION OF (DL) OR (1) 5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) -OG 5- (3-THENOYL) -1,2- DIHYDRO-3H-PYRROL - (, 2-A) -PYRROL-1-CARBOXYLIC ACID ESTERS AND SALTS - Google Patents

ANALOGY PROCEDURE FOR THE PREPARATION OF (DL) OR (1) 5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) -OG 5- (3-THENOYL) -1,2- DIHYDRO-3H-PYRROL - (, 2-A) -PYRROL-1-CARBOXYLIC ACID ESTERS AND SALTS

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Publication number
DK479380A
DK479380A DK479380A DK479380A DK479380A DK 479380 A DK479380 A DK 479380A DK 479380 A DK479380 A DK 479380A DK 479380 A DK479380 A DK 479380A DK 479380 A DK479380 A DK 479380A
Authority
DK
Denmark
Prior art keywords
thenoyl
furoyl
pyrrol
salts
dihydro
Prior art date
Application number
DK479380A
Other languages
Danish (da)
Other versions
DK152653B (en
DK152653C (en
Inventor
J M Muchowski
A F Kluge
Original Assignee
Syntex Inc
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 US05/771,283 external-priority patent/US4087539A/en
Priority claimed from DK307677A external-priority patent/DK152652C/en
Application filed by Syntex Inc filed Critical Syntex Inc
Publication of DK479380A publication Critical patent/DK479380A/en
Publication of DK152653B publication Critical patent/DK152653B/en
Application granted granted Critical
Publication of DK152653C publication Critical patent/DK152653C/en

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  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

Analogy process for preparing (dl)- or (l)-5-(2-furoyl)-, 5-(2-thenoyl)-, 5-(3-furoyl)- and 5-(3-thenoyl)-1,2- dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic esters and salts of the general formula <IMAGE> or <IMAGE> in which X denotes oxygen or sulphur, R denotes hydrogen or an alkyl group having 1-4 carbon atoms, R<1> denotes hydrogen, methyl, chlorine or bromine, where the substituent R<1> in connection with the formula A' is in the 3, 4 or 5 position in relation to the furan or thiophene ring and R<2> is an alkyl group having 1-12 carbon atoms or a salt radical, characterized in that a corresponding free acid is converted in order to form the esters and salts of the formula A' or B'.
DK479380A 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) - OR 5- (3-THENOYL) -1, 2-DIHYDRO-3H-PYRROLOOE1,2-AAAPYRROL-1-CARBOXYLIC ACID ESTERS OR SALTS DK152653C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US70485776A 1976-07-14 1976-07-14
US70485776 1976-07-14
US05/771,283 US4087539A (en) 1976-07-14 1977-02-23 5-(2-Furoyl)-, 5-(2-thenoyl)-, 5-(3-furoyl)- and 5-(3-thenoyl)-1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic acid derivatives and process for the production thereof
US77128377 1977-02-23
DK307677 1977-07-07
DK307677A DK152652C (en) 1976-07-14 1977-07-07 ANALOGY PROCEDURE FOR PREPARING 5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) - AND 5- (3-THEONYL) -1,2-DIHYDRO-3H-PYRROLOOE1,2 -AAAPYRROL-1-carboxylic acid esters

Publications (3)

Publication Number Publication Date
DK479380A true DK479380A (en) 1980-11-11
DK152653B DK152653B (en) 1988-04-05
DK152653C DK152653C (en) 1988-09-19

Family

ID=27221729

Family Applications (4)

Application Number Title Priority Date Filing Date
DK479480A DK479480A (en) 1976-07-14 1980-11-11 (DL) 5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) -OG 5- (3-THENOYL) -1,2-DIHYDRO-3H-PYRROL- (1) , 2-A) -PYRROL-1-CARBOXYLIC ACID ESTERS AND SALTS
DK479580A DK152654C (en) 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) - OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (FUROYL) - OR 5- (3-THENOYL) -1,2- dihydro-3H-pyrrol-OE1,2-AAA-pyrrole-1-carboxylic acid
DK479680A DK152655C (en) 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) - OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) - OR 5- (3-THENOYL) -1, 2-dihydro-3H-PYRROLOOE1,2-AAAPYRROL-1-carboxylic acid derivatives
DK479380A DK152653C (en) 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) - OR 5- (3-THENOYL) -1, 2-DIHYDRO-3H-PYRROLOOE1,2-AAAPYRROL-1-CARBOXYLIC ACID ESTERS OR SALTS

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DK479480A DK479480A (en) 1976-07-14 1980-11-11 (DL) 5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) -OG 5- (3-THENOYL) -1,2-DIHYDRO-3H-PYRROL- (1) , 2-A) -PYRROL-1-CARBOXYLIC ACID ESTERS AND SALTS
DK479580A DK152654C (en) 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) - OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (FUROYL) - OR 5- (3-THENOYL) -1,2- dihydro-3H-pyrrol-OE1,2-AAA-pyrrole-1-carboxylic acid
DK479680A DK152655C (en) 1976-07-14 1980-11-11 METHOD OF ANALOGUE FOR THE PREPARATION OF (DL) - OR (L) -5- (2-FUROYL) -, 5- (2-THENOYL) -, 5- (3-FUROYL) - OR 5- (3-THENOYL) -1, 2-dihydro-3H-PYRROLOOE1,2-AAAPYRROL-1-carboxylic acid derivatives

Country Status (1)

Country Link
DK (4) DK479480A (en)

Also Published As

Publication number Publication date
DK152654B (en) 1988-04-05
DK152654C (en) 1988-09-19
DK479680A (en) 1980-11-11
DK479580A (en) 1980-11-11
DK152655B (en) 1988-04-05
DK152653B (en) 1988-04-05
DK152653C (en) 1988-09-19
DK152655C (en) 1988-09-19
DK479480A (en) 1980-11-11

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