、
5-[N-(4-methylpyridin-2-yl)amino]pentanoic acid 在
2,3,5-三甲基吡啶 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 methyl (E,7R,8S)-7-[tert-butyl(dimethyl)silyl]oxy-8-[(2-methylpropan-2-yl)oxycarbonylamino]-9-phenylnon-5-enoate