(2Z,4E,8E)-(S)-7-(tert-Butyl-dimethyl-silanyloxy)-9-iodo-nona-2,4,8-trienoic acid (5E,7E,13Z)-(1R,9R,11S)-1-methyl-9,11-bis-triethylsilanyloxy-14-trimethylstannanyl-tetradeca-5,7,13-trienyl ester 在
tris-(dibenzylideneacetone)dipalladium(0) 、
N,N-二异丙基乙胺 、
Tetrabutylammoniumsalz der Diphenylphosphinsaeure 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 0.17h,
以92%的产率得到(3Z,5E,9E,11Z,17E,19E)-(8S,14S,16R,24R)-8-(tert-Butyl-dimethyl-silanyloxy)-24-methyl-14,16-bis-triethylsilanyloxy-oxacyclotetracosa-3,5,9,11,17,19-hexaen-2-one