3-Phenyl-2-(pyrrolidin-1-yl)-5,6-dihydro-8H-thiopyrano[4′,3′:4,5]thieno[2,3-d]pyrimidin-4(3H)-one

Abstract

In the title compound, C19H19N3OS2, the thiopyran ring adopts a twist-chair conformation and the pyrimidinone unit is essentially planar, with a mean deviation of 0.0497 Å. The thiophene ring is essentially planar with a maximum deviation of 0.024 (2) Å, while the pyrrolidine ring exhibits an envelope conformation. The pyrimidinone and thiophene 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 molecules are linked by C—H...O hydrogen bonds, forming a two-dimensional network in the ac plane.