| 摘要 |
Process characterised in that it comprises two stages of synthesis consisting in: a) reacting a compound of formula IV with a compound of formula V to obtain a compound of formula IV: <IMAGE> where each of Y and X denotes a halogen atom and A denotes an ammonium radical derived from amines of formula VII (in which each of R4, R5 and R6, independently of each other, denotes a hydrogen atom, an acyl group, an alkyl group and an aliphatic alcohol containing 1 to 4 carbon atoms), <IMAGE> the radical <IMAGE> being an acyloxymethyl group; b) reacting the compound of formula VI with 3'-substituted or 2',3'-disubstituted aniline of formula VIII to obtain compounds of formula I, and a hydrogen halide <IMAGE> where R2 denotes a methyl group and R3 denotes a chlorine atom.
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