(3aS,5E,8S,15E,17aS)-11,13-bis(ethoxymethoxy)-5-fluoro-2,2,8-trimethyl-10-oxo-3a,7,8,10,17,17a-hexahydro-4H-benzo[c][1,3]dioxolo[4,5-h][1]oxacyclotetradecin-4-yl benzoate 在
甲醇 、 sodium hydroxide 作用下,
反应 2.0h,
以76%的产率得到(3aR,5E,8S,15E,17aS)-11,13-bis(ethoxymethoxy)-5-fluoro-4-hydroxy-2,2,8-trimethyl-3a,4,7,8,17,17a-hexahydro-10H-benzo[c][1,3]dioxolo[4,5-h][1]oxacyclotetradecin-10-one