在
2,3-二氯-5,6-二氰基-1,4-苯醌 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 4.33h,
以80%的产率得到(1R,3S,5R,7S,9R,11S,14S,16R,17R,18S,20R,21R,22Z,25S,27R,29S,31R,34S,35R,37S,39R,41S)-11-[(E,4R)-5-[tert-butyl(dimethyl)silyl]oxy-2,4-dimethylpent-2-enyl]-35-[(2R)-2-hydroxy-3-[(2S,4R,5R)-5-[(2S)-4-hydroxybutan-2-yl]-4-methyloxolan-2-yl]propyl]-9,18,21,27,29-pentamethyl-12-methylidene-2,6,10,15,19,26,30,36,40-nonaoxanonacyclo[23.18.0.03,20.05,18.07,16.09,14.027,41.029,39.031,37]tritetracont-22-ene-17,34-diol