2-(1-Ethyl-7-hydroxy-2,2,4-trimethylquinoline-6-carbonyl)-3,4,5,6-tetrafluorobenzoic acid 、
1-ethyl-2,2,4-trimethyl-1,2-dihydroquinolin-7-ol 在
三氯氧磷 作用下,
以
氯仿 为溶剂,
反应 3.0h,
以9%的产率得到2-(6,20-Diethyl-7,7,9,17,19,19-hexamethyl-2-oxa-20-aza-6-azoniapentacyclo[12.8.0.03,12.05,10.016,21]docosa-1(14),3,5,8,10,12,15,17,21-nonaen-13-yl)-3,4,5,6-tetrafluorobenzoate