DERIVATIVES OF N-SUBSTITUTED-2-AMINOBENZOIC ACID

专利名称：DERIVATIVES OF N-SUBSTITUTED-2-AMINOBENZOIC ACID

发明人：KURT SCHROMM,ANTON MENTRUP,ERNST-OTTO RENTH,ARMIN FUGNER,VOLKERJACOBI

申请号：AU3877278申请日：19780809公开号：AU3877278A公开日：19800214

摘要：Compounds of the formula wherein A is =CH- or =N-; R1 is (a) hydrogen, loweralkyl, lower alkoxy or a fused benzene ring, or (b) -CO-R4, tetrazol-5-yl or cyano in the 4-or 5-position; R2 is -CO-R4, tetrazol-5-yl, cyano or, when R1 has one of the meaningsincluded in (b), also hydrogen, lower alkyl, lower alkoxy or a fused benzene ring; R3 ishydrogen or lower alkanoyl; and R4 is hydroxyl, amino, hydroxy-amino, tetrazol-5-yl-amino or lower alkoxy; internal salts thereof, and non-toxic salts thereof formed with abasic substance. The compounds as well as their salts are useful as antiallergics.

申请人：BOEHRINGER INGELHEIM G.M.B.H.

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