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

Abstract

In the title compound, C20H21N3OS2, the piperidinyl ring has a distorted chair conformation. Weak intermolecular C—H...O hydrogen bonds link the molecules into centrosymmetric dimers. The crystal packing exhibits short intermolecular S...S distances of 3.590 (2) Å.