Patent · US Expired

Carboxylic acid derivatives, their preparation and their use

US6004988A · kind A · utility

9Cited by
0References
3Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 24, 1998
Grant dateDec 21, 1999
Priority date
Expiry dateFeb 24, 2018

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D319/18
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Carboxylic acid derivatives of the formula I ##STR1## here R.sup.1 is a tetrazole [sic], nitrile [sic], a group COOH or a radical which can be hydrolyzed to COOH, and the other substituents have the meaning explained in the description.

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