(2S,6Z,9S,10E)-9-{[tert-butyl(dimethyl)silyl]oxy}-2,6,10-trimethyl-11-(2-methyl-1,3-thiazol-4-yl)undeca-6,10-dienal 、
(3S)-3-[((tert-butyl)dimethylsilyl)oxy]-1-[(1S,5R)-10,10-dimethyl-3,3-dioxido-3-thia-4-azatricyclo[5.2.1.01.5]dec-4-yl]-4,4-dimethylheptan-1,5-dione 在
四氯化钛 、
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以85%的产率得到(12Z,16E)-(3S,6R,7S,8S,15S)-3,15-bis-(tert-butyl-dimethyl-silanyloxy)-1-((S)-10,10-dimethyl-3,3-dioxo-thia-4-aza-tricyclo[5.2.1.0]dec-4-yl)-7-hydroxy-4,4,6,8,12,16-hexamethyl-17-(2-methyl-thiazol-4-yl)-heptadeca-12,16-diene-1,5-dione