Abstract:In the title compound, C21H19N3O3S, the 5,6,7,8-tetrahydropyridine ring adopts a half-chair conformation. The fused-thieno[2,3-d]pyrimidine ring system is essentially planar (r.m.s. deviation = 0.001 Å) and forms a dihedral angle of 2.66 (6)° with the attached phenyl ring. The three-dimensional crystal packing is stabilized by C—H⋯O and C—H⋯N hydrogen bonds and C—H⋯π interactions.
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