Methyl imidazo(1,2-a)pyridine-6-carboxylate136117-69-630 % similar 2,5-Dibromopyrimidine32779-37-630 % similar 2,7-Dibromonaphthalene58556-75-530 % similar 3-Bromo-8-chloro-1,5-naphthyridine97267-61-330 % similar