(4-Bromo-2-fluoro-3-trifluoromethyl-phenyl)-hydrazine hydrochloride 、
3-hydroxy-5-oxo-4a,5,6,7,8,8a-hexahydro-naphthalene-2-carboxylic acid methyl ester 在
氯化锌 乙酸乙酯 、
盐酸 、
magnesium sulfate 、
甲醇 作用下,
以
溶剂黄146 为溶剂,
反应 16.0h,
以to afford 194 mg of the title compound as a white solid的产率得到8-Bromo-10-fluoro-2-hydroxy-9-trifluoromethyl-5,11-dihydro-6H-benzo[a]carbazole-3-carboxylic acid methyl ester