TSAO analogs. 3. Synthesis and anti-HIV-1 activity of 2',5'-bis-O-(tert-butyldimethylsilyl)-.beta.-D-ribofuranosyl 3'-spiro-5"-(4"-amino-1",2"-oxathiole 2",2"-dioxide) purine and purine-modified nucleosides
作者:Sonsoles Velazquez、Ana San-Felix、Maria Jesus Perez-Perez、Jan Balzarini、Erik De Clercq、Maria Jose Camarasa
DOI:10.1021/jm00074a003
日期:1993.10
treatment with Cs2CO3, stereoselectively afforded beta-D-ribofuranosyl 3'-spiro nucleosides. 2',5'-O-Deacylation and subsequent treatment with tert-butyldimethylsilyl chloride gave the required TSAO derivatives. The 3'-spiro nucleosides with a xylo configuration did not show any anti-HIV activity. However, the purine ribo 3'-spiro nucleosides were potent and selective inhibitors of HIV-1 with a 50% effective
新型抗HIV-1先导药物[[2',5'-双-O-(叔丁基二甲基甲硅烷基)-β-D-呋喃呋喃糖基]胸腺嘧啶] -3'-spiro-5的几种嘌呤和嘌呤修饰的类似物制备了''-(4''-氨基-1'',2''-草硫醇2'',2''-二氧化物)(TSAO-T)并评估为HIV-1诱导的细胞病变的抑制剂。呋喃糖-3'-磺基腺嘌呤的O-甲磺酰基氰醇与Cs2CO3的反应提供了β-D-木糖基和呋喃核糖基腺嘌呤3'-螺核苷。1,2-二-O-乙酰基-5-O-苯甲酰基-3-C-氰基-3-O-甲磺酰基-D-呋喃呋喃糖与嘌呤碱的反应,然后用Cs2CO3处理,立体选择性提供β-D-呋喃呋喃糖基3'-螺核苷。2′,5′-O-脱酰并随后用叔丁基二甲基甲硅烷基氯处理得到所需的TSAO衍生物。3' 具有木糖构型的β-螺核苷没有显示出任何抗HIV活性。然而,嘌呤核糖3'-螺核苷是有效的,选择性的HIV-1抑制剂,其有效浓度为50%,范围为0