(S)-2-[(1R,2S,4S)-2-(tert-Butyl-dimethyl-silanyloxy)-5,6,8-trimethoxy-4,7-dimethyl-1,2,3,4-tetrahydro-naphthalen-1-yl]-propionaldehyde 在
sodium methylate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
反应 12.0h,
以50%的产率得到(R)-2-[(1R,2S,4S)-2-(tert-Butyl-dimethyl-silanyloxy)-5,6,8-trimethoxy-4,7-dimethyl-1,2,3,4-tetrahydro-naphthalen-1-yl]-propionaldehyde