(1α,2α,6α,6aα,10aβ,13S*)-(+/-)-4,5,6,6a,10,10a-hexahydro-13-methyl-1-hydroxy-4H-6a,2,6-(methanoxymetheno)-2H-3-benzoxocin-4-one 在
sodium hydroxide 作用下,
以
甲醇 为溶剂,
生成
((1R,6S,7S,8R,9R,12S)-7,8-Dihydroxy-9-methyl-10-oxa-tricyclo[7.2.1.01,6]dodec-2-en-12-yl)-acetic acid