(3R,3aS,7aS)-3-[(3S)-1,4-dioxaspiro[4.5]decan-3-yl]-3a,7a-dihydroxy-4,7-dihydro-3H-2-benzofuran-1-one 在
lead(IV) acetate 作用下,
以
二氯甲烷 为溶剂,
反应 0.17h,
生成
(5Z,9R)-9-[(3S)-1,4-dioxaspiro[4.5]decan-3-yl]-4,7-dihydrooxonine-2,3,8-trione 、 (R)-9-(S)-1,4-Dioxa-spiro[4.5]dec-2-yl-1,6-dihydroxy-8,10-dioxa-bicyclo[4.3.1]dec-3-en-7-one 、 (Z)-(R)-9-(S)-1,4-Dioxa-spiro[4.5]dec-2-yl-3,3-dihydroxy-4,7-dihydro-3H-oxonine-2,8-dione