(2R,3E)-4-[dimethyl(phenyl)silyl]-2-methylpent-3-enal 、 (3S,5S)-6-{[tert-butyl(diphenyl)silyl]oxy}-3-[(4-methoxybenzyl)oxy]-5-methylhexan-2-one 在
N,N-二异丙基乙胺 、
diethylboron trifluoromethanesulfonate 作用下,
以
甲苯 为溶剂,
反应 3.5h,
以84%的产率得到4-Methoxy-benzoic acid (E)-(1S,4S,5R)-1-[(S)-3-(tert-butyl-diphenyl-silanyloxy)-2-methyl-propyl]-7-(dimethyl-phenyl-silanyl)-4-hydroxy-5-methyl-2-oxo-oct-6-enyl ester