(1R,2S)-1-[(2S,3R)-2,3-dimethyl-4-phenylmethoxybutyl]-2-[(2R,4S,5R,6R)-6-ethenyl-5-(methoxymethoxy)-2-phenyl-1,3-dioxan-4-yl]-4-(methoxymethoxymethyl)cyclohex-3-ene-1-carbaldehyde 、 triethyl-[[(4R,6R,8R,10S,13R)-10-(5-iodo-2-methylidenepentyl)-13-methyl-4-[2-tri(propan-2-yl)silyloxyethyl]-5,7,9-trioxadispiro[5.1.58.26]pentadecan-13-yl]oxy]silane 在
叔丁基锂 作用下,
以
乙醚 、
正戊烷 为溶剂,
反应 1.67h,
以75%的产率得到1-[(1R,2S)-1-[(2S,3R)-2,3-dimethyl-4-phenylmethoxybutyl]-2-[(2R,4S,5R,6R)-6-ethenyl-5-(methoxymethoxy)-2-phenyl-1,3-dioxan-4-yl]-4-(methoxymethoxymethyl)cyclohex-3-en-1-yl]-5-[[(4R,6R,8R,10S,13R)-13-methyl-13-triethylsilyloxy-4-[2-tri(propan-2-yl)silyloxyethyl]-5,7,9-trioxadispiro[5.1.58.26]pentadecan-10-yl]methyl]hex-5-en-1-ol