| abstract |
Phenylacetic acid derivs. of formula (I), and their salts. X = NOMe. CHOMe, CHMe or CHEt; R<1> = H or Q; m = 0, 1 or 2; R<2> = CN, NO2, CF3, halo, Q or QO; R<3> = H, CN, NO2, OH, NH2, halo, Q, QO, QS, QNH ; R<4> = H, Cy, CyO, CyS, CyNH, Ar, ArO, ArS; Q = 1-4C alkyl; Cy = 3-6C cycloalkyl; Ar = aryl; R<5> = H, 1-10C alkyl, Cy, 2-10C alkenyl, 2-10C alkynyl, 2-10C alkenylcarbonyl, 1-10C alkycarbonyl, 3-10C alkynylcarbonyl or 1-10C alkylsulphonyl. |