| abstract |
Phenyl acetic acid derivatives of formula (I) in which: X is NOCH3, CHOCH3 and CHCH3; Y is NMR and O; R, R1 are hydrogen and C1-4 alkyl; R2 is hydrogen, C1-C6 alkyl, C1-C4 alkyl halide and C3-C6 cycloalkyl; R3 is C4-C6 alkyl, substituted C1-C6 alkyl, possibly substituted C2-C6 alkinyl or possibly substituted C2-C6 alkenyl; R4 is hydrogen, possibly substituted C1-C10 alkenyl, C2-C10 alkinyl, C1-10 alkyl carbonyl, C2-C10 alkenyl carbonyl, C3-C10 alkinyl carbonyl or C1-C10 alkyl sulphonyl, aryl, aryl carbonyl, aryl sulphonyl, hetaryl, hetaryl carbonyl or hetaryl sulphonyl; and their salts, a process and intermediate products for their production and their use. |