甲醇 、
1-[[(1R,2S,5S)-5-methyl-2-propan-2-ylcyclohexyl]oxy-phenoxyphosphoryl]pyrrolidine 在
N,N,N,N-tetraethylammonium tetrafluoroborate 、
potassium hydrogencarbonate 作用下,
以95%的产率得到2-methoxy-1-[[(1R,2S,5S)-5-methyl-2-propan-2-ylcyclohexyl]oxy-oxido-phenoxyphosphaniumyl]pyrrolidine