6,6'-((1E,1'E)-((2,3-Dimethylbutane-2,3-diyl)bis(azanylylidene))bis(methanylylidene))bis(2,4-di-tert-butylphenol)
2,2'-(((1-Phenylpropane-1,2-diyl)bis(azanylylidene))bis(methanylylidene))diphenol
