Scheme 4From: Therapeutic importance of synthetic thiopheneSynthesis of 3-{[(phenylhydrazono)(substitutedphenyl)methyl]diazenyl}-2-sulfanyl-2,3,5,6,7,8-hexahydro [1] benzothieno[2,3-d]pyrimidin-4(1H)-one (15a–i)Back to article page