Toluene-4-sulfonic acid (E)-(S)-2-[(R)-3-(tert-butyl-dimethyl-silanyloxy)-1-methyl-propyl]-5-ethyl-7-((4S,5S)-5-ethyl-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-hept-4-enyl ester 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
反应 3.0h,
以74%的产率得到(3R,4S,6E,10S,11S)-1-tert-butyldimethylsilyloxy-7-ethyl-10,11-isopropylidenedioxy-3,4,11-trimethyl-6-tridecene