(R)-3-{(2S,4S,6R,8S,10S)-8-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-methyl-4,10-bis-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-2-ylmethyl}-2-methyl-but-3-en-1-ol 在
吡啶 、
戴斯-马丁氧化剂 作用下,
以
二氯甲烷 为溶剂,
以95%的产率得到(R)-3-{(2S,4S,6R,8S,10S)-8-[2-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-4-methyl-4,10-bis-triethylsilanyloxy-1,7-dioxa-spiro[5.5]undec-2-ylmethyl}-2-methyl-but-3-enal