Studies on antitumor agents. VI. Syntheses and antitumor activities of acyl derivatives of 2'-deoxy-5-trifluoromethyluridine.
作者:JUN-ICHI YAMASHITA、SETSUO TAKEDA、HIROSHI MATSUMOTO、TADAFUMI TERADA、NORIO UNEMI、MITSUGI YASUMOTO
DOI:10.1248/cpb.35.2090
日期:——
Various O-acyl and N-acyl derivatives of 2'-deoxy-5-trifluoromethyluridine (F3Thd) were synthesized; namely 5'-O-acyl, 3', 5'-di-O-acyl, N3-acyl, 3', 5'-di-O-acetyl-N3-acyl, 3', 5'-di-O-carbamoyl and 3', 5'-di-O-ethoxycarbonyl compounds. 5'-O-Acyl derivatives of 2'-deoxy-5-trifluoromethylcytidine were also synthesized. The antitumor activities of these compounds against sarcoma 180 were examined by oral administration to mice. Among the 5'-and 3', 5'-diester compounds with aliphatic acids, the 5'-O-hexanoyl compound showed the highest activity. Full protection of the sugar moiety with aroyl or carbamoyl groups considerably decreased the activities, and those of the 3', 5'-di-O-m-fluorobenzoyl and 3, 5'-di-O-butylcarbamoyl compounds were the smallest. N3-Benzoyl compounds were slightly more effective than F3Thd but none of them showed higher activity than the effective O-acyl compounds. In the case of 5'-O-acylates of 2'-deoxy-5-trifluoromethylcytidine, the 5'-O-benzoyl compound showed the highest activity.
合成了2'-脱氧-5-三氟甲基尿苷(F3Thd)的各种O-酰基和N-酰基衍生物,即5'-O-酰基、3', 5'-二-O-酰基、N3-酰基、3',5'-二-O-乙酰基-N3-酰基、3', 5'-二-O-氨甲酰基和3',5'-二-O-乙氧羰基化合物。还合成了2'-脱氧-5-三氟甲基胞苷的5'-O-酰基衍生物。通过给小鼠口服给药,考察了这些化合物对肉瘤180的抗癌活性。在具有脂肪族酸的5'-和3'5'-二酯化合物中,5'-O-己酰基化合物显示出最高的活性。用芳酰基或氨甲酰基保护糖部分的完全保护大大降低了活性,而3',5'-二-O-间氟苯甲酰基和3',5'-二-O-丁基氨甲酰基化合物的活性最小。N3-苯甲酰基化合物的效力略高于F3Thd,但它们中没有任何一种显示出比有效的O-酰基化合物更高的活性。在2'-脱氧-5-三氟甲基胞苷的5'-O-酰基化合物中,5'-O-苯甲酰基化合物显示出最高的活性。