(E)-5-(3,4-difluorostyryl)-2,3-dihydro-1-methyl-1H-1,4-benzodiazepine dihydrochloride 、
2,5-二氟苯甲酸 以
(1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester 为溶剂,
生成 (7-fluoro-1-methyl-1,2,3,4-tetrahydrobenzo[e][1,4]diazepin-5-ylidenemethyl)phosphonic acid diethyl ester