Fifty-four 1-carbamoyl-5-fluorouracils were synthesized from 5-fluorouracil and isocyanate or amine. Antitumor activity was tested in the L-1210 tumor system, and 11 compounds gave better values of therapeutic ratio than HCFU (1-hyxylcarbamoyl-5-fluorouracil). 1-(4-Methoxycyclohexylcarbamoyl)-5-fluorouracil gave the best result.
从5-
氟尿
嘧啶和
异氰酸酯或胺合成了54个1-羧酰胺基-5-
氟尿
嘧啶。在L-1210瘤株体系中测试了其抗肿瘤活性,有11个化合物的治疗比值优于HCFU(1-羟基羰酰胺基-5-
氟尿
嘧啶)。其中1-(4-甲氧基环己基羰酰胺基)-5-
氟尿
嘧啶的效果最佳。