Synthesis and biological activity of unsaturated carboacyclic purine nucleoside analogs
作者:David R. Haines、Christopher K. H. Tseng、Victor E. Marquez
DOI:10.1021/jm00388a036
日期:1987.5
Two new carboacyclic nucleoside analogues, 9-[4-hydroxy-3-(hydroxymethyl)-2-butenyl]adenine (6) and 9-[4-hydroxy-3-(hydroxymethyl)-2-butenyl]guanine (5), modeled on the unsaturated carbocyclic nucleoside analogue neplanocin A (2), have been synthesized and tested for antiviral activity against HSV-2 and, in the case of 6, for activity against influenza and in vitro inhibition of S-adenosylhomocysteine
两个新的碳环核苷类似物9- [4-羟基-3-(羟甲基)-2-丁烯基]腺嘌呤(6)和9- [4-羟基-3-(羟甲基)-2-丁烯基]鸟嘌呤(5),以不饱和碳环核苷类似物neplanocin A(2)为模型,已经合成并测试了其对HSV-2的抗病毒活性,并在6种情况下测试了其对流感的活性和对S-腺苷半胱氨酸水解酶的体外抑制作用。通过将腺嘌呤或鸟嘌呤前体2-氨基-6-氯嘌呤(15)与关键中间体1-(苄氧基)-2-[((苄氧基)甲基] -4-氯-2-丁烯)偶联来完成合成(13)。N-9腺嘌呤加合物的去苄基作用直接得到6,而N-9加合物的15用氢氧化钠处理时的脱苄基作用得到鸟嘌呤类似物5。碳环鸟嘌呤类似物(5)对HSV-2表现出显着的抗病毒活性(VR = 1.5,MIC50 = 65.6微克/ mL),该活性水平高于ara-A,但低于无环鸟苷。腺嘌呤类似物6仅在非常高的剂量下才具有抗HSV-2的活性。它