title: Ethyl 6-(2-chloro-phen-yl)-4-methyl-1-(3-oxobut-yl)-2-thioxo-1,2,3,6-tetra-hydro-pyrimidine-5-carboxyl-ate.
abstract: In the title mol-ecule, C(18)H(21)ClN(2)O(3)S, the pyrimidine ring exhibits a half-chair conformation. The ethyl group is disordered between two positions in a ratio 0.74:0.26. In the crystal structure, the mol-ecules are linked into chains along the a axis by N-H⋯O hydrogen bonds.
authors.affiliation: College of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China.
authors.forename: Qing-Peng
authors.initials: QP
authors.lastname: He
authors.forename: Jian-Yong
authors.initials: JY
authors.lastname: Wang
authors.forename: Ruo-Kun
authors.initials: RK
authors.lastname: Feng