title: 3-Phenyl-2-(pyrrolidin-1-yl)-5,6-dihydro-8H-thio-pyrano[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.
abstract: In the title compound, C(19)H(19)N(3)OS(2), the thio-pyran ring adopts a twist-chair conformation and the pyrimidinone unit is essentially planar, with a mean deviation of 0.0497 Å. The thio-phene ring is essentially planar with a maximum deviation of 0.024 (2) Å, while the pyrrolidine ring exhibits an envelope conformation. The pyrimidinone and thio-phene rings are almost coplanar, forming a dihedral angle of 6.31 (15)°, while the dihedral angle between the mean planes of the phenyl ring and the pyrimidinone ring is 68.13 (10)°. In the crystal structure, adjacent mol-ecules are linked by C-H⋯O hydrogen bonds, forming a two-dimensional network in the ac plane.
authors: College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi 037009, People's Republic of China.
authors: Shuang-Ming
authors: SM
authors: Meng
authors: Hai
authors: H
authors: Xie
authors: Yue-Qin
authors: YQ
authors: Fan
authors: Bu-Qin
authors: BQ
authors: Jing
authors: Yong
authors: Y
authors: Guo
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr Sect E Struct Rep Online. 2008 Nov 26;64(Pt 12):o2434
references: 21581402