Succinic acid (2R,4aR,6R,7R,8S,8aR)-7-benzoyloxy-6-(5-benzyloxycarbonylamino-pentyloxy)-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-8-yl ester (2S,3R,4R,5S,6S)-4-benzyloxy-5-(2-chloro-acetoxy)-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-3-yl ester 在
盐酸 、 sodium cyanoborohydride 作用下,
以
四氢呋喃 、
乙醚 为溶剂,
反应 0.08h,
以75%的产率得到Succinic acid (2R,3R,4S,5R,6R)-3-benzoyloxy-2-(5-benzyloxycarbonylamino-pentyloxy)-6-benzyloxymethyl-5-hydroxy-tetrahydro-pyran-4-yl ester (2S,3R,4R,5S,6S)-4-benzyloxy-5-(2-chloro-acetoxy)-2-ethylsulfanyl-6-methyl-tetrahydro-pyran-3-yl ester