(2R,3R)-3-benzyloxycarbonylamino-4-phenylthio-2-methanesulfonyloxy-1-(4-nitrobenzoyloxy)butane 、
(S)-(-)-tert-Butyl-decahydro-3-isoquinolinecarboxamide 在
(S)-(-)-tert-Butyl-decahydro-3-isoquinolinecarboxamide 作用下,
以86的产率得到benzyl N-[(2R,3R)-4-[(3R,4aR,8aS)-3-(tert-butylcarbamoyl)-3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl]-3-hydroxy-1-phenylsulfanylbutan-2-yl]carbamate