(R,R,R)-1-(7-methyldipyrido[3,2-f:2',3'-h]quinoxaline)-4,7,10-tris[1-(1-phenyl)ethylcarbamoylmethyl]-1,4,7,10-tetraazacyclododecane 、
europium(III) trifluoromethanesulfonate 以
乙腈 为溶剂,
以75%的产率得到((R,R,R)-1-(7'-methyldipyrido[3,2-f:2',3'-h]quinoxaline)-4,7,10-tris[N-(1-phenylethyl)carbamoylmethyl]-1,4,7,10-tetraazacyclododecane)europium tris(trifluoromethanesulfonate)