diphenylmethyl (S)-3-[(2S,3R,4R,5S)-5-(O-tert-butyl-N-fluorenylmethyloxycarbonyl-L-seryl)amino-2,3,4,6-tetrahydroxyhexanoyl]amino-3-phenylpropionate 、
哌啶 在
silica gel 、
甲醇乙酸乙酯 、
hexane-diethyl ether 作用下,
反应 5.0h,
以to afford the title compound (539 mg)的产率得到diphenylmethyl (S)-3-[(2S,3R,4R,5S)-5-(O-tert-butyl-L-seryl)amino-2,3,4,6-tetrahydroxyhexanoyl]amino-3-phenylpropionate