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