| abstract |
Heterocyclyl-phenyl carboxylic acid derivs. of formula (I) and their tautomers, stereoisomers and salts are new. Ra = piperidinyl, piperazinyl or piperazino; A = CH=CH-CO, CH2-CH2-CO or NR1-CH2-CO with the CO gp. bonded to B; B = NR1-cyclohexylene, piperidinediyl or NR1-(CH2)n with the N atom bonded to A; R1 = H or 1-4C alkyl; n = 2 or 3; E = COOH, 2-5C alkoxycarbonyl or 5-8C cycloalkoxycarbonyl. |