(1R,2S,12bS,12cS)-2-Acetoxy-1,2,4,5,12b,12c-hexahydro-7H-[1,3]dioxolo[4,5-j]pyrrolo[3,2,1-de]phenanthridine-1-carboxylic acid methyl ester 在
吡啶 、
4-二甲氨基吡啶 、
二异丁基氢化铝 作用下,
以
甲苯 为溶剂,
生成 Toluene-4-sulfonic acid (1R,2R,12bR,12cR)-2-hydroxy-1,2,4,5,12b,12c-hexahydro-7H-[1,3]dioxolo[4,5-j]pyrrolo[3,2,1-de]phenanthridin-1-ylmethyl ester