Substituted di-t-butylphenols
AssigneeRiker Laboratories, Inc.
InventorRobert A. Scherrer
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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.
Claims7
A compound of the formula ##STR35## wherein R is hydrogen, lower alkyl, lower alkoxy, lower alkylthio, halogen, amino, lower alkylamino, di(lower alkylamino), lower acylamido, or hydroxy, and n is 0, 1 or 2, with the proviso that if n is 2, all R substituents combined contain no more than 6 carbon atoms;
- R' is hydrogen, lower alkyl, acetyl or trifluoroacetyl;
- A is carboxyl or ##STR36## and when A is carboxyl, B is a carbon-carbon bond, lower alkylene, lower alkenylene, lower alkylene containing one ether or thioether link in the alkylene chain, or ##STR37## and when A is ##STR38## B is a carbon-carbon bond;
- or a derivative of a compound wherein A is carboxyl, said derivative selected from the group consisting of a lower alkyl ester, a (lower)alkylamino(lower)alkyl ester, a pharmaceutically acceptable (lower) alkylamino(lower)alkyl ester acid-addition salt, and a pharmaceutically acceptable carboxylate salt.
Dependencies are inferred from the claim text.