Structure-activity relationships of .beta.-D-(2S,5R)- and .alpha.-D-(2S,5S)-1,3-oxathiolanyl nucleosides as potential anti-HIV agents
作者:Lak S. Jeong、Raymond F. Schinazi、J. Warren Beach、Hea O. Kim、Kirupathevy Shanmuganathan、Satyanarayana Nampalli、Moon W. Chun、Won Keun Chung、Bo G. Choi、Chung K. Chu
DOI:10.1021/jm00070a006
日期:1993.9
Among 5-substituted cytosine analogues, 5-bromocytosine derivative (beta-isomer) 68 was found to be the most potent anti-HIV agent. In the case of purine derivatives, inosine analogue (beta-isomer) 78 was found to be the most potent anti-HIV agent in the 6-substituted purines and 2-amino-6-chloropurine derivative (beta-isomer) 90 showed the most potent activity in the 2,6-disubstituted purine series
合成了具有天然核苷构型的β-D-(2S,5R)-和α-D-(2S,5S)-1,3-氧杂硫基丙基嘧啶和-嘌呤核苷,并针对人外周血单核(PBM)中的HIV-1进行了评估) 细胞。由D-甘露糖或D-半乳糖合成了用于合成各种核苷的关键中间体14。乙酸盐14与胸腺嘧啶,尿嘧啶,胞嘧啶和5-取代的尿嘧啶和胞嘧啶的缩合得到各种嘧啶核苷。乙酸酯14也与6-氯嘌呤和6-氯-2-氟嘌呤缩合,将其转化为各种嘌呤核苷。就胸腺嘧啶,尿嘧啶和5-取代的尿嘧啶衍生物而言,除5-氟尿嘧啶(α-异构体)衍生物55以外,大多数化合物均未表现出任何显着的抗HIV活性。在5-取代的胞嘧啶类似物中,发现5-溴胞嘧啶衍生物(β-异构体)68是最有效的抗HIV药物。在嘌呤衍生物的情况下,肌苷类似物(β-异构体)78被发现是6-取代嘌呤中最有效的抗HIV药物,而2-氨基-6-氯嘌呤衍生物(β-异构体)90显示最多。 2,6-二取代嘌呤系