2-(diphenylphosphanyl)-4-{4-[2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoyl]piperazine-1-carbonyl}benzoic acid 1-(2-{ethyl[4-(4-nitrophenylazo)phenyl]amino}ethyl) ester 、
苄基叠氮 在
potassium dihydrogenphosphate 作用下,
以
乙醇 、
乙腈 为溶剂,
生成
N-benzyl-2-(diphenylphosphinoyl)-4-{4-[2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoyl]piperazine-1-carbonyl}benzamide 、
Disperse Red 1