title: Ethyl 5-(4-chloro-phen-yl)-2-[(Z)-(methoxy-carbon-yl)methyl-ene]-7-methyl-3-oxo-3,5-dihydro-2H-thia-zolo[3,2-a]pyrimi-dine-6-carboxyl-ate.
abstract: The title compound, C(19)H(17)ClN(2)O(5)S, was synthesized by the reaction of ethyl 6-(4-chloro-phen-yl)-2-mercapto-4-methyl-1,6-dihydro-pyrimidine-5-carboxyl-ate and dimethyl acetyl-ene-dicarboxyl-ate in methanol. In the mol-ecule, the nearly planar thia-zole ring, with a mean deviation from the plane of 0.0108 (3) Å, is fused with a dihydro-pyrimidine ring in a flattened half-chair conformation.
authors.forename: Zhao-Hui
authors.initials: ZH
authors.lastname: Hou
authors.forename: Ning-Bo
authors.initials: NB
authors.lastname: Zhou
authors.forename: Bin-Hong
authors.initials: BH
authors.lastname: He
authors.forename: Xiao-Fang
authors.initials: XF
authors.lastname: Li