Indole, 2-methyl-3-[(2-methyl-3H-indol-3-ylidene)methyl]-

(E)-N-(diethoxymethoxy)-1-phenylmethanimine

ethyl naphthalen-1-ylcarbamate

ethyl 2-cyano-2-(ethoxymethylideneamino)acetate

(3Z)-3-(1H-indol-3-ylmethylidene)indole