methyl (3aS,4R,7R,7aR)-2-[hexahydro-7-hydroxy-2,2-dimethyl-1,3-dioxolo[4,5-c]pyridin-4-yl]acetate 、
4-(4-nitrobenzyloxy)benzenesulfonyl chloride 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 18.0h,
以82%的产率得到methyl (3aS,4R,7R,7aR)-2-{hexahydro-7-hydroxy-2,2-dimethyl-5-[4-(4-nitrobenzyloxy)phenylsulfonyl]-1,3-dioxolo[4,5-c]pyridin-4-yl}acetate