N'-(pyridin-3-yl)-(4-phenylpiperazin-1-yl)-carboxyimidamide and -iminothiolate derivatives for the treatment of tumors

摘要

The present invention relates to a novel compound of the general formula (I) and its pharmaceutically acceptable acid addition salt, and process for the preparation thereof, which have strong antimumor activities and very low toxicity. <CHEM> wherein R1 and R2 are independently hydrogen, C1-C4 alkyl, C1-C4 alkylcarboxyl, C1-C4 alkylcarbonyl, C1-C4 alkoxy, C1-C4 hydroxyalkyl, C1-C4 aminoalkyl or C1-C4 hydroxyiminoalkyl, or R1 and R2 are fused to form C3-C4 unsaturated ring; R3, R4, R5, R6 and R7 are independently hydrogen, halogen, hydroxy, nitro, amino, C1-C4 alkyl, C1-C4 alkylcarboxyl, C1-C4 alkylcarbonyl, C1-C4 alkoxy or C1-C4 thioalkoxy; Y is amino, substituted amino or C1-C4 thioalkyl; Z is C1-C4 alkoxy, C1-C4 alkyl, C1-C4 alkylamino or C1-C4 thioalkoxy; X1 is CH and X2 is nitrogen;