4-{5-ethyl-7,7,10,10-tetramethyl-7,8,9,10-tetrahydro-2-[3-(trifluoromethyl)phenylsulfonylamino]-5H-5,13-diazabenzo[4,5]cyclohepta[1,2-b]naphthalene-12-yl}benzoic acid methyl ester 在
sodium hydroxide 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以65%的产率得到4-[5-Ethyl-7,7,10,10-tetramethyl-2-[[3-(trifluoromethyl)phenyl]sulfonylamino]-8,9-dihydronaphtho[2,3-b][1,5]benzodiazepin-12-yl]benzoic acid