Patent · US Expired

Thiophene derivatives and their preparation

US4021450A · kind A · utility

4Cited by

1References

11Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Hanns Ahrens
Helmut Biere · Berlin, DE
Clemens Rufer
Ralph Schmiechen · Berlin, DE
Eberhard Schroeder
Olaf Loge
Wolfgang Losert
Ekkehard Schillinger · Berlin, DE

Key dates

Filing date	May 20, 1975
Grant date	May 3, 1977
Priority date	—
Expiry date	May 20, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D333/34
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Thiophene derivatives of the formula ##STR1## WHEREIN R.sub.x is --S-CHR.sub.5 -COOH or -S-CH.sub.2 -CH.sub.2 -OH, R.sub.y is 1-2 of halogen alkoxy of 1-6 carbon atoms, aralkyl of 7-10 carbon atoms, phenyl, halophenyl or alkylcarbonyl of 1-6 carbon atoms in the alkyl group, and R.sub.5 is a hydrogen atom, when R.sub.y is a halogen atom, when R.sub.5 is alkyl, their enantiomers, and their pharmacologically acceptable salts thereof with bases, possess antilipolytic activity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.