(2E,4E,6E)-8-(diethoxy-phosphoryl)-octa-2,4,6-trienoic acid ethyl ester 、
(4S,5R,E)-6-((4R,6R)-6-(((4S,6S)-6-(((4R,6R)-6-((3S,4S,E)-4-hydroxy-3,5-dimethylhex-1-enyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)-4-methyl-5-(triethylsilyloxy)hex-2-enal 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 1.0h,
以61%的产率得到(2E,4E,6E,8E,10E,12S,13R)-ethyl 14-((4R,6R)-6-(((4S,6S)-6-(((4R,6R)-6-((3S,4S,E)-4-hydroxy-3,5-dimethylhex-1-enyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)-12-methyl-13-(triethylsilyloxy)tetradeca-2,4,6,8,10-pentaenoate