method provides an efficient approach to optically active 1,5‐benzothiazepines featuring stereocenters with C−S bonds. Excellent enantioselectivities (up to 95 % ee) and high yields (up to 99 %) were obtained for a variety of substrates bearing a range of useful functional groups. Moreover, this methodology could be directly applied to the synthesis of the antidepressant drug R‐(−)‐thiazesim.