2-Dimethylamino-4,4-diphenyl-3-aza-1-oxa-1,3-butadiene

N-[(dimethyl-4,6 pyridyl-2)-2 phenyl-1 vinyl] N'-dimethylaminocarbonyl benzamidine

2,4-dimethyl-7-phenyl-1,6-naphthyridin-5(6H)-one

dimethyl-4,6 (ethoxycarbonylamino-2 phenyl-2 vinyl)-2 pyridine

N-[(dimethyl-4,6 pyridyl-2)-2 phenyl-1 vinyl] N'-ethoxycarbonyl benzamidine