(2R,3R)-5-(2-Dimethylamino-ethyl)-2-ethyl-3-hydroxy-2-(4-methoxy-phenyl)-2,3-dihydro-5H-benzo[b][1,4]thiazepin-4-one; hydrochloride 、
乙酸酐 以
溶剂黄146 为溶剂,
反应 2.0h,
以91%的产率得到Acetic acid (2R,3R)-5-(2-dimethylamino-ethyl)-2-ethyl-2-(4-methoxy-phenyl)-4-oxo-2,3,4,5-tetrahydro-benzo[b][1,4]thiazepin-3-yl ester; hydrochloride