Synthesis and antiherpetic activity of (S)-, (R)-, and (.+-.)-9-[(2,3-dihydroxy-1-propoxy)methyl]guanine, linear isomers of 2'-nor-2'-deoxyguanosine
作者:Wallace T. Ashton、Laura F. Canning、Glenn F. Reynolds、Richard L. Tolman、John D. Karkas、Richard Liou、Mary Ellen M. Davies、Corrille M. DeWitt、Helen C. Perry、A. Kirk Field
DOI:10.1021/jm00145a014
日期:1985.7
Racemic 9-[(2,3-dihydroxy-1-propoxy)methyl]guanine [(+/-)-iNDG], a new analogue of acyclovir (ACV) and a structural analogue of 2'-nor-2'-deoxyguanosine (2'NDG), was synthesized and found to inhibit the replication of herpes simplex virus types 1 (HSV-1) and 2 (HSV-2). Subsequently, its optical isomers, (R)- and (S)-iNDG, were prepared from chiral intermediates. The chloromethyl ethers of 1,2-di-O-benzyl-D-
外消旋9-[((2,3-二羟基-1-丙氧基)甲基]鸟嘌呤[(+/-)-iNDG],无环鸟苷(ACV)的新类似物和2'-nor-2'-脱氧鸟苷的结构类似物(2'NDG),合成并发现抑制1型单纯疱疹病毒(HSV-1)和2型(HSV-2)的复制。随后,由手性中间体制备其旋光异构体(R)-和(S)-iNDG。制备1,2-二-O-苄基-D-和-L-甘油的氯甲基醚,使其与三(三甲基甲硅烷基)鸟嘌呤反应,得到9-烷基化的鸟嘌呤,将其通过催化氢解脱保护。针对细胞培养中的HSV-1和HSV-2,(S)-iNDG的活性比R对映异构体高约10至25倍,并且具有与ACV和2'NDG相当的ED50。(R)-iNDG的活性较差,其磷酸化产物对病毒DNA聚合酶的抑制作用较弱。在小鼠腹膜内或口腔内感染HSV-1或阴道内感染HSV-2的小鼠中,(S)-9-[(2,3-二羟基-1-丙氧基)甲基]鸟嘌呤[(S)-iNDG]的药效低于2