7-Benzyl-2-[(cyclo-propyl-meth-yl)amino]-3-phenyl-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.

There are two independent mol-ecules in the asymmetric unit of the title compound, C(26)H(26)N(4)OS. In each mol-ecule, the thienopyrimidine fused-ring system is essentially planar with a maximum deviation of 0.0409 (18) for the N atom. In one mol-ecule, this ring system forms diherdral angles of 84.8 (1) and 67.6 (1)° with the adjacent phenyl and benzyl rings, respectively, while the corresponding angles in the other mol-ecule are 77.9 (1) and 66.5 (1)°.