tert-butyl (R)-3-<(S)-1-ethoxycarbonyl-3-cyclohexylpropyl>amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-α-methylacetate                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (R)-2-[(R)-5-(1-Carboxy-ethyl)-4-oxo-2,3,4,5-tetrahydro-benzo[b][1,4]thiazepin-3-ylamino]-4-cyclohexyl-butyric acid ethyl ester; hydrochloride