Sulfuric acid 5-hydroxy-1,4-bis-(4-methoxy-phenyl)-3-{2-[4-(2,2,2-trichloro-ethoxysulfonyloxy)-phenyl]-ethyl}3,6-dihydro-pyrrolo[2,3-c]carbazol-7-yl ester 2,2,2-trichloro-ethyl ester 在
双氧水 作用下,
以
水 、
乙腈 为溶剂,
以44%的产率得到sulfuric acid 1,4-bis-(4-hydroxy-phenyl)-2,5-dioxo-3-{2-[4-(2,2,2-trichloro-ethoxysulfonyloxy)-phenyl]-ethyl}-2,3,5,6-tetrahydro-pyrrolo[2,3-c]carbazol-7-yl ester 2,2,2-trichloro-ethyl ester