title: 6-Cyclo-hexyl-meth-yl-5-ethyl-2-[(2-oxo-2-phenyl-eth-yl)sulfan-yl]pyrimidin-4(3H)-one.
abstract: In the title compound, C(21)H(26)N(2)O(2)S, the cyclo-hexane ring adopts a chair conformation. The angle at the methyl-ene bridge linking the pyrimidine and cyclo-hexane rings is 113.41 (13)°. This is in the range considered optimal for maximum activity of non-nucleoside reverse transcriptase inhibitors. In the crystal, mol-ecules are connected into centrosymmetric dimers via pairs of N-H⋯O hydrogen bonds.
authors.forename: Wan-Lu
authors.initials: WL
authors.lastname: Yan
authors.forename: Qiong
authors.initials: Q
authors.lastname: Guo
authors.forename: Cong
authors.initials: C
authors.lastname: Li
authors.forename: Xiao-Ying
authors.initials: XY
authors.lastname: Ji
authors.forename: Yan-Ping
authors.initials: YP
authors.lastname: He