[(3R,4S,5R,6R)-4,5-diacetyloxy-6-[3-[[(2S)-1-[(2S)-2-amino-3,3-dimethylbutanoyl]pyrrolidin-2-yl]methyl]-6-fluoro-2-(4-fluorophenyl)indol-1-yl]oxan-3-yl] acetate 在
N,N-二异丙基乙胺 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 3.25h,
以98%的产率得到[(3R,4S,5R,6R)-4,5-diacetyloxy-6-[3-[[(2S)-1-[(2S)-3,3-dimethyl-2-[[(2S)-2-[methyl(phenylmethoxycarbonyl)amino]propanoyl]amino]butanoyl]pyrrolidin-2-yl]methyl]-6-fluoro-2-(4-fluorophenyl)indol-1-yl]oxan-3-yl] acetate