Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Synthesis and Anticancer Evaluation of Some New poly functionally Substituted Pyrimidine-2-thione Derivatives
Author(s): Rasha S. Gouhar, Usama Fathy, Mohamed F. El-Shehry and Salwa M. El-HalloutyThe starting 5-cyano-6-(3,4-dimethoxyphenyl)-2-thiouracil 1 which prepared by reaction of ethyl cyanoacetate with thiourea and 3,4-dimethoxybenzaldehyde, was allowed to react with POCl3/PCl5 to give the key intermediate 4- chloropyrimidine-2-thione derivative (2). Compound 2 underwent several substitution reactions with sulfa drug, pamino acetophenone and benzocaine to give the corresponding substituted 4-amino derivatives 3, 4, 6, respectively. The hydrazides 5, α,β-unsaturated ketone 7 and its cyclized products 8, 9 were also prepared. The imidazopyrimidinthione 10, its Mannich bases and arylmethylene derivatives 11 and 12 were also prepared. Several other pyridoimidazopyrimidine-thiones and triazolopyrimidines were also synthesized. All newly prepared compounds were biologically evaluated for their anticancer activity against cancer cell lines.
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