Syntheses of Heterocyclic Compounds of Nitrogen. LXXXIII: Photosensitizing Dyes. (9)

Twenty-one kinds of new aminovinyl compounds were prepared by the condensation of the quaternary salts of 2, 6-lutidine to 5, 5′-dichloro (dibromo-, diiodo)-2, 2′-dipyridylformamidines and 3, 3′, 5, 5′-tetrabromo-2, 2′-dipyridylformamidine by the fusion method. These compounds are said to decrease the flowing velocity of leucocytes and to show antitumorous action.