Patent · US Expired

N-(substituted phenyl) tetrazol-5-yl carboxamides and anti-allergic use thereof

US4808604A · kind A · utility

5Cited by

6References

10Claims

0Family size

Assignee

Ciba-Geigy · US

Inventors

Andreas Beck · Glückstadt, DE
Alfred Sallmann · Bottmingen, CH
Paul Wenk · Allschwil, CH

Key dates

Filing date	Jun 1, 1987
Grant date	Feb 28, 1989
Priority date	—
Expiry date	Jun 1, 2007

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D257/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Novel 4-acylresorcinol ethers of the formula ##STR1## in which R.sub.1 is lower alkyl, alk is a hydroxyalkylene radical which can be interrupted by oxygen and R.sub.2 is 5-tetrazolyl, it being possible for the ring A to be additionally substituted by a lower alkyl, lower alkenyl, lower alkynyl, lower alkoxy and/or halogen and for the ring B to be additionally substituted by lower alkyl, lower alkanoyl, lower alkoxy, lower alkoxycarbonyl, carboxyl, cyano, carbamyl, halogen and/or trifluoromethyl, and salts thereof have antiallergic properties and can be used as active compounds for medicaments. They are prepared by methods known as per se.

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