N,N'-(6-(bromomethyl)pyrido[2,3-d]pyrimidine-2,4-diyl)bis(1,1,1-triphenyl-l5-phosphanimine)

diethyl (4-(((2,4-bis((triphenyl-l5-phosphaneylidene)amino)pyrido[2,3-d]pyrimidin-6-yl)methyl)(methyl)amino)-1-naphthoyl)-L-glutamate