在
氢氟酸 作用下,
以
乙腈 为溶剂,
以64%的产率得到(1S,5R,12S,15S,16R,17S,20R,21E,24S,26S,27R,28S,30R)-17-hydroxy-15-[(E)-1-[(1R,3R,4R)-4-hydroxy-3-methoxycyclohexyl]prop-1-en-2-yl]-26,28-dimethoxy-3,3,16,22,24,30-hexamethyl-20-prop-2-enyl-2,4,14,31-tetraoxa-7-azatetracyclo[25.3.1.01,5.07,12]hentriacont-21-ene-6,13,19-trione