(2S,3R,5R,6R,7R,8S,E)-3,5-bis((tert-butyldimethylsilyl)oxy)-2-ethyl-7-methoxy-6,8-dimethyldodec-10-enal   、                                                                                      
[Bis-(2,2,2-trichloro-ethoxy)-phosphoryl]-acetic acid ethyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium hydride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                生成                                                 
(2Z,12E)-(4R,5R,7R,8R,9R,10S)-5,7-Bis-(tert-butyl-dimethyl-silanyloxy)-4-ethyl-9-methoxy-8,10-dimethyl-tetradeca-2,12-dienoic acid ethyl ester