Quinoline, 6-fluoro-1,2,3,4-tetrahydro-2-(trifluoromethyl)- 、
乙氧基甲叉丙二酸二乙酯 、 、 cis-4-{[(3-benzyloxy-phenyl)-(3-chloro-pyrazin-2-yl)-methyl]-carbamoyl}-cyclohexanecarboxylic acid methyl ester 在
N,N-二甲基甲酰胺 作用下,
以to provide crystals of 6,7-dihydro-9-fluoro-1-oxo-5-trifluoromethyl-1H,5H-benzo[ij]quinolizine-2-carboxylic acid, m.p. 295°-297° C.的产率得到9-Fluor-6,7-dihydro-1-oxo-5-trifluormethyl-1H,5H-benzo
chinolizin-2-carbonsaeure