(2Z)-N-[[[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)ethylidene]amino]methyl]-2-[3-(2-phenoxyethyl)-1,3-thiazolidin-2-ylidene]ethanimine;2-(1,1-dimethyl-3-phenylbenzo[e]indol-2-ylidene)-N-(2-methylcyclopentyl)ethanimine;ethyl 3-[2-(1,3-dimethylbenzimidazol-2-ylidene)ethylideneamino]benzoate;formaldehyde;N-methyl-4-[2-(3-methyl-1,3-benzoxazol-2-ylidene)ethylideneamino]-N-phenylaniline