1,1',6,6',7,7'-hexahydroxy-3,3'-dimethyl-N5-(2-phenylpropyl)-N5'-(2-phenylpropyl)-2,2'-binaphthyl-5,5'-dicarboxamide
1,1',6,6',7,7'-hexahydroxy-3,3'-dimethyl-n5-(2-phenylpropyl)-n5'-(2-phenylpropyl)-2,2'-binaphthyl-5,5'-dicarboxamide