Synthesis and Anti-HIV-1 Activity of Novel 2,3-Dihydro-7<i>H</i>-thiazolo[3,2-<i>a</i>]pyrimidin-7-ones
作者:Krzysztof Danel、Erik B. Pedersen、Claus Nielsen
DOI:10.1021/jm970443m
日期:1998.1.1
Appropriately substituted 2,3-dihydro-7H-thiazolo[3,2-a]pyrimidin-7-ones 9-12 and 18 were considered as annulated analogues of HEPT (1-[(2-hydroxyethoxy)methyl]-6-(phenylthio)-thymine), and some of these compounds were also found active against HIV-1, the most active one being 2,3-dihydro-5-[(3,5-dimethylphenyl)methyl]-3-ethoxy-6-ethyl-7H- thiazolo[3,2-a]pyrimidin-7-one (10b). S-Alkylation of 5-al
适当取代的2,3-二氢-7H-噻唑并[3,2-a]嘧啶-7-9-12和18被认为是HEPT(1-[((2-羟基乙氧基)甲基] -6-((还发现其中一些化合物对HIV-1有活性,其中最活跃的化合物是2,3-二氢-5-[(3,5-二甲基苯基)甲基] -3-乙氧基-6-乙基-7H-噻唑并[3,2-a]嘧啶-7-一(10b)。用2-溴乙醛缩醛进行5-烷基-6-(芳基甲基)-2-硫尿嘧啶1-4的S-烷基化以提供S- [双(烷氧基)乙基]衍生物5-8,并用烯丙基溴提供S -烯丙基衍生物17.使用三甲基甲硅烷基三氟甲磺酸盐(TMS triflate)作为催化剂,通过甲硅烷基化5-8的N1区域选择性分子内环化反应获得目标化合物9-12。