[1-[5-[6-Chloro-3-(dimethoxymethyl)hexyl]thiophen-2-yl]-2-cyanoethyl] acetate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide   、                                                                                                  lithium aluminium tetrahydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醚                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (+)-<2R-<2α(R*),9α(R*),9aβ>>-5-<2-<2-<5-<6-chloro-3-(dimethoxymethyl)hexyl>-2-thienyl>hexahydro-2H,6H-pyrido<2,1-b><1,3>oxazin-9-yl>ethyl>-β-hydroxy-2-thiophenepropanenitrile