英文别名
4H,4'H,4''H,4'''H-4,4',4'',4'''-cyclobutanetetraylidene-tetrakis-pyridine-1-carboxylic acid tetraethyl ester;4,4',4'',4'''-(1,2,3,4-Cyclobutantetrayliden)tetrakis[1,4-dihydro-1-pyridincarbonsaeure-ethylester];Ethyl 4-[2,3,4-tris(1-ethoxycarbonylpyridin-4-ylidene)cyclobutylidene]pyridine-1-carboxylate