Synthesis and Antileukemic Activity of Chymotrypsin-Activated Derivatives of 3'-Amino-2',3'-dideoxycytidine. (Synthetic Nucleosides and Nucleotides.XXXIII).
作者:Takeo KAWAGUCHI、Hiroshi SAKAIRI、Shigeru KIMURA、Toyofumi YAMAGUCHI、Mineo SANEYOSHI
DOI:10.1248/cpb.43.501
日期:——
3'-Amino-2',3'-dideoxycytidine (8) was directly synthesized from 2'-deoxycytidine. 2',3'-Dideoxy-3'-(N-acyl-L-phenylalanylamino)cytidines (acyl = butoxycarbonyl (9a), acetyl (9b), benzoyl (9c), and n-hexanoyl (9d)) were synthesized as chymotrypsin-activated prodrugs of 8. This N-protection was required for activation by chymotrypsin to 8. In vitro, compound 8 showed high cytotoxic activity against
由2′-脱氧胞苷直接合成3′-氨基-2′,3′-二脱氧胞苷(8)。2',3'-Dideoxy-3'-(N-acyl-L-phenylalanylamino)cytidines(酰基=丁氧羰基(9a),乙酰基(9b),苯甲酰基(9c)和正己酰基(9d))合成为胰凝乳蛋白酶活化的8的前药。胰凝乳蛋白酶活化至8所需的这种N保护作用。在体外,化合物8对P388细胞显示出高细胞毒性,但前药9a-d无效。然而,在体内,这些前药在携带P388细胞的小鼠中显示出比8更高的活性。