SYNTHESIS OF SOME NEW<i>S</i>-DABO AND HEPT ANALOGUES WITH EXPECTED BIOLOGICAL ACTIVITY AGAINST HBV
作者:Mohammed Taha Abdel Aal
DOI:10.1081/scc-120003633
日期:2002.1
ABSTRACT Ethyl4-(3,4-dimethoxyphenyl)-2-methyl-3-oxobutanoate (1) is synthesized in a high yield from 3,4-dimethoxybenzylcyanide and 2-bromopropionate. Condensation of (1) with thiourea in EtOH/NaOEt afforded the thiopyrimidine (2). Alkylation of (2) with halo compounds gave new thio-analogues of DABO's (3–7), whereas desulfurization of (2) by chloroacetic acid afforded the uracil (3). Reaction of
摘要 乙基 4-(3,4-二甲氧基苯基)-2-甲基-3-氧代丁酸酯 (1) 是由 3,4-二甲氧基苄基氰化物和 2-溴丙酸酯以高产率合成的。(1) 与硫脲在 EtOH/NaOEt 中的缩合得到硫代嘧啶 (2)。(2) 与卤素化合物的烷基化产生新的 DABO 硫代类似物 (3-7),而 (2) 用氯乙酸脱硫得到尿嘧啶 (3)。(3) 与氯甲基醚的反应产生了 HEPT (10a,b) 的新类似物。