Substituted di-t-butylphenols
AssigneeRiker Laboratories, Inc.
InventorRobert A. Scherrer
Life of this patent
Estimating the term…
Abstract
Novel compounds which are 2,6-di-t-butylphenols substituted on the 4 position by an anilino group, which anilino group is substituted by a carboxyl substituent, a tetrazolyl substituent or an N-methyltetrazolyl substituent, are useful antiallergic agents. Pharmaceutical compositions containing and pharmacological methods of using such compounds are also disclosed, as are synthetic intermediates for preparing such compounds. Certain of the synthetic intermediates also exhibit useful antiallergic activity.
Claims1
A compound of the formula ##STR35## wherein R is hydrogen, lower alkyl, lower alkoxy, lower alkylthio, hydroxy, halogen, amino or lower acylamino;
- n is 0, 1 or 2, with-the proviso that when n is 2, the R substituents combined contain no more than 6 carbon atoms;
- and B is a carbon-carbon bond, lower alkylene, lower alkenylene, lower alkylene containing one ether or thioether link in the alkylene chain, or ##STR36## with the proviso that --BCOOH is bonded to the phenyl ring ortho or meta when B is a carbon-carbon bond.
Dependencies are inferred from the claim text.