(4E,6E,8E,12E)-pentadeca-4,6,8,12,14-pentaenal 、
5-{(4S,5R)-5-[(3aR,4R,6R,7aR)-6-((R)-1-Methoxymethoxy-2-trityloxy-ethyl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-4-yl]-2,2-dimethyl-[1,3]dioxolan-4-ylmethanesulfonyl}-1-phenyl-1H-tetrazole 在
双(三甲基硅烷基)氨基钾 作用下,
以
四氢呋喃 为溶剂,
以80%的产率得到(3aR,4R,6R,7aR)-4-[(4S,5R)-5-[(1E,5E,7E,9E,13E)-hexadeca-1,5,7,9,13,15-hexaenyl]-2,2-dimethyl-1,3-dioxolan-4-yl]-6-[(1R)-1-(methoxymethoxy)-2-trityloxyethyl]-2,2-dimethyl-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran