(3aR,6S,7S,7aS)-4'-(9H-fluoren-9-yl)-7-hydroxy-2,2-dimethylspiro[3a,4,7,7a-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6,6'-morpholine]-3'-one 在
重铬酸吡啶 、
溶剂黄146 作用下,
以
二氯甲烷 为溶剂,
反应 48.0h,
以74%的产率得到(3aR,6S,7aR)-4'-(9H-fluoren-9-yl)-2,2-dimethylspiro[4,7a-dihydro-3aH-[1,3]dioxolo[4,5-c]pyran-6,6'-morpholine]-3',7-dione