beta-D-D4FC was not active against HIV-1, even at 100 microM. The carbocyclic analogues (26a,b) of D4FC demonstrated weak activity against HIV-1 and no toxicity in various cells. The triphosphates (27a,b) of the carbocyclic nucleosides demonstrated potent inhibitory activity against recombinant HIV-1 reverse transcriptase at submicromolar concentrations. Of the compounds tested as potential anticancer
发现了新型
胞嘧啶核苷β-D-2',3'-didehydro-2',3'-二脱氧-5-
氟胞苷(D-
D4FC)作为有效的抗人免疫缺陷病毒(HIV)药物,这导致我们合成了一系列β-D-
D4FC的类似物和衍
生物,它们可能更具选择性,并且具有增强的糖苷键稳定性。评价合成的D-
D4FC类似物在各种细胞中的抗HIV-1活性,抗癌活性和细胞毒性。
生物学数据表明,β-D-
D4FC被
溴(6c)和
碘(6d)5取代导致抗病毒活性丧失,并且D-
D4FC的α-D异头物(7a)也没有活动。与母体化合物相比,D-
D4FC的5-
氟尿
嘧啶类似物(6b和7b)效力更低,细胞毒性更高,而β-L-
D4FU(11)则显示出强大的抗HIV-1活性和细胞毒性。β-D-
D4FC的N4-和5'-O-酰基衍
生物(17,15a-c)表现出与β-D-
D4FC相当的抗病毒活性。相反,β-D-
D4FC的N4-异丙基衍
生物(20)即使在100 micr