10,20-dimethyl-5,15-bis-(2-methyl-cyclopropyl)-9,19-bis-triisopropylsilanyloxy-4,14,21,22-tetraoxa-tricyclo[15.3.1.1
7,11]docosane-3,13-dione 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以85%的产率得到(1S,5S,7S,9S,10R,11S,15S,17S,19S,20R)-9,19-Dihydroxy-10,20-dimethyl-5,15-bis-((1S,2S)-2-methyl-cyclopropyl)-4,14,21,22-tetraoxa-tricyclo[15.3.1.1
7,11]docosane-3,13-dione