5-[(E)-3-{(4S,5R)-5-[(1R,5S)-5-hydroxy-1-(methoxymethoxy)-hexyl]-2,2-dimethyl-1,3-dioxolan-4-yl}prop-1-enyl]-7-methoxy-2,2-dimethyl-4H-benzo[d][1,3]dioxin-4-one 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
以160 mg的产率得到(3aR,4R,8S,17aS,E)-11-hydroxy-13-methoxy-4-(methoxymethoxy)-2,2,8-trimethyl-5,6,7,8,17,17a-hexahydro-3aH-benzo[c][1,3]dioxolo-[4,5-h][1]oxacyclotetradecin-10(4H)-one