N-[4-(2-chloro-5-fluoro-phenylcarbonyl)amino-phenylcarbonyl]-2-hydroxyimino-spiro[cyclopentane-1,4'-benzo[b]azepane] 以
乙醇 、
乙腈 为溶剂,
生成 (R)-N-[4-(2-chloro-5-fluoro-phenylcarbonyl)amino-phenylcarbonyl]-2-hydroxyimino-spiro[cyclopentane-1,4'-benzo[b]azepane] trifluoroacetate 、 (S)-N-[4-(2-chloro-5-fluoro-phenylcarbonyl)amino-phenylcarbonyl]-2-hydroxyimino-spiro[cyclopentane-1,4'-benzo[b]azepane] trifluoroacetate