2-Propenal, 3-[4-[6-[(1E,3E)-3-[(4,5-dihydro-1H-imidazol-2-yl)hydrazono]-1-propenyl]imidazo[1,2-a]pyridin-2-yl]phenyl]-, (4,5-dihydro-1H-imidazol-2-yl)hydrazone, (1E,2E)-, trihydrobromide AIDS-057685 AIDS057685 NSC690242