2,6-dichloro-N-[2-[7-(3-methoxypropylamino)-6-methyl-4-oxospiro[3H-chromene-2,4'-piperidine]-1'-yl]ethyl]benzamide 、
草酸 以
乙酸乙酯 为溶剂,
生成 2,6-dichloro-N-(2-(7-((3-methoxypropyl)amino)-6-methyl-4-oxospiro[chromane-2,4'-piperidin]-1'-yl)ethyl)benzamide oxalate