| 摘要 |
Novel derivatives of 4,5,6,7-tetrahydro-7-oxo(oxy)benzob!-thiophen-4-amines of the following formula: wherein A is the group N=C=Z or (HX)n, wherein R1 is hydrogen; R2 is hydrogen, C1-C6 alkanoyl, halosubstituted C1-C6 alkanoyl or ; wherein Y is hydrogen, 3,4-dichloro, chloro, methyl methoxy or nitro; R3 is oxy or hydroxy; Z is oxygen or sulfur; X is chlorine, bromine or iodine; n is zero except when R2 is hydrogen with the proviso that A is N=C=X when R3 is oxygen. |
