methyl (2Z,4E)-(6R,7S)-7-(tert-butyldimethylsilyloxy)-6-methyl-9-oxo-nona-2,4-dienoate 、
1-[3R,9R-bis-(tert-butyldimethylsilanyloxy)-12-iodo-2R,8S,10S-trimethyl-1S-(1S-methylpent-2Z-enyl)-dodec-11Z-enyloxymethyl]-4-methoxybenzene 在
叔丁基锂 、
氯化铵 作用下,
以
乙醚 、
正戊烷 为溶剂,
反应 1.0h,
以24%的产率得到methyl 7S,13R,19R-tris(tert-butyldimethylsilanyloxy)-9S-hydroxy-21S-(4-methoxy-benzyloxy)-6R,12S,14S,20R,22S-pentamethylhexacosa-2Z,4E,10Z,23Z-tetraenoate