(2S,3R,4S,5R,6R,10S,11R,12R,13R)-1,11,13-tri-O-acetyl-2,4,6,8,10,12-hexamethyl-3,5-O-isopropylidene-8(E)-pentadecene-1,3,5,6,11,13-hexol 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
以92%的产率得到Acetic acid (E)-(1R,2S,6R)-1-((1S,2R)-2-acetoxy-1-methyl-butyl)-6-hydroxy-6-[(4R,5S,6R)-6-((S)-2-hydroxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-2,4-dimethyl-hept-3-enyl ester