Oxazoles having a sulfinyl or sulfonyl substituent at the 2-position are provided. Such compounds readily react with an alkali metal salt of a secondary amide in a method of making 2-acylamino oxazole derivatives having anti-allergic activity.
Heterocyclically substituted &agr;-hydroxycarboxylic acid derivatives, method for producing the same and their use as endothelin receptor antagonists
申请人:Abbott Laboratories
公开号:US06358983B1
公开(公告)日:2002-03-19
The present invention relates to carboxylic acid derivatives of the formula I
the substituents having the meanings explained in the description, preparation and use as endothelin receptor antagonists.