Patent · US Expired

Method for preparing sulfanyl-type endothelin receptor antagonists

US6235903A · kind A · utility

0Cited by

0References

5Claims

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Assignee

BASF SE

Inventors

Wilhelm Amberg · Ludwigshafen, DE
Rolf Jansen · Braunschweig, DE
Dagmar Klinge · Heidelberg, DE

Key dates

Filing date	Aug 23, 2000
Grant date	May 22, 2001
Priority date	—
Expiry date	Aug 23, 2020

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D239/60
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for preparing endothelin receptor antagonists of the sulfanyl type of the general formula I ##STR1## by nucleophilic reaction of a carboxylic acid derivative of the formula II with a sulfide of the formula III ##STR2## to give endothelin receptor antagonists of the formula I.

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