(+)-3,4-dihydro-6-methanesulfonamido-1'-(1,2,3,4-tetrahydronaphthalen-2-yl)spiro(2H-1-benzopyran-2,4'-piperidine)-4-one hydrochloride 在
sodium borohydrid 作用下,
以
乙醇 为溶剂,
以31%的产率得到(4RS)-3,4-Dihydro-6-methanesulfonamido-1'-(1,2,3,4-tetrahydronaphthalen-2-yl)spiro(2H-1-benzopyran-2,4'-piperidine)-4-ol hydrochloride