(1R,2R)-2-(acetyloxy)-2-(7R,8R)-7-[(acetyloxy)methyl]-4-hydroxy-5-oxo-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinolin-8-yl-1-methylethyl acetate 在
水 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
反应 18.0h,
以83%的产率得到(7R,8R)-8-[(1R,2R)-1,2-dihydroxypropyl]-4-hydroxy-7-(hydroxymethyl)-7,8-dihydro[1,3]dioxolo[4,5-g]isoquinolin-5(6H)-one