4-[3-[[(3R,3aR,4S,6aS)-3-[[tert-butyl(dimethyl)silyl]oxymethyl]-4-methyl-6-oxo-3,3a,4,6a-tetrahydrofuro[3,4-c][1,2]oxazol-1-yl]methyl]phenyl]-3-nitrobenzoic acid 、
二甲胺 在
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
四氢呋喃 、 DMF (N,N-dimethyl-formamide) 为溶剂,
反应 14.0h,
以20%的产率得到4-[3-[[(3R,3aR,4S,6aS)-3-[[tert-butyl(dimethyl)silyl]oxymethyl]-4-methyl-6-oxo-3,3a,4,6a-tetrahydrofuro[3,4-c][1,2]oxazol-1-yl]methyl]phenyl]-N,N-dimethyl-3-nitrobenzamide