ethyl 5-(7-((1-(5-ethoxy-5-oxopentyl)-2,2,4-trimethyl-1,2-dihydroquinolin-7-yl)oxy)-2,2,4-trimethyl-6-((4-nitrophenyl)diazenyl)quinolin-1(2H)-yl)pentanoate 、
对甲苯磺酸 以
乙醇 为溶剂,
以74%的产率得到1,11-bis(5-ethoxy-5-oxopentyl)-2,2,4,8,10,10-hexamethyl-10,11-dihydro-2H-dipyrido[3,2-b:2',3'-i]phenoxazin-1-ium 4-methylbenzenesulfonate