| 摘要 |
The derivs. of formula (I) in which R1 and R2 are H, halogen, nitro, amino, 2-5C acylamino, 1-4C alkyl, alkoxy, alkylthio, or alkylsulphonyl, heterocyclyl-amino, opt. substd. phenyl, phenylthio, phenylsulphonyl or phenylsulphonamido, or together form a 3-5C alkylene link, R3 is 1-4C alkyl or 2-4C alkenyl, and X is a 5-8 membered alicyclic gp. contg. 1 or 2 N atoms and is attached directly to the amidic N atom or through a 1-3C alkylene chain, are made by reacting a cpd. (II) with an amine of formula (II).
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