2-(3,4-Di­meth­oxy­phen­yl)-4-(thio­phen-2-yl)-2,3-di­hydro-1,5-benzo­thia­zepine

In the title compound, C₂₁H₁₉NO₂S₂, the seven-membered thia­zepine ring adopts a slightly distorted twist boat conformation. The dihedral angle between the benzene rings is 67.4 (2)°. The mean plane of the thio­phene ring is twisted by 59.3 (2) and 87.7 (2)° from the mean planes of the benezene rings. In the crystal, inversion dimers linked by pairs of C—H...O hydrogen bonds generate R₂²(20) loops.