(1'R,3S,4'R,5'S,9'R,9a'R)-5',9'-dimethyl-2,2'-dioxo-1',2',4',5',8',9'-hexahydrospiro[oxetane-3,6'-[4,9a]methanocyclopenta[d]oxocin]-1'-yl acetate 在
盐酸 作用下,
以
乙二醇二甲醚 、
水 为溶剂,
反应 72.0h,
以58%的产率得到(1'R,3S,4'R,5'S,9'R,9a'R)-1'-hydroxy-5',9'-dimethyl-4',5',8',9'-tetrahydrospiro[oxetane-3,6'-[4,9a]methanocyclopenta[d]oxocine]-2,2'(1'H)-dione