1,3-bis[(1'-allyl-1',3'-dihydro-1H-[3,3']biindolyl-2'-on)-1-yl]propane

1,3-bis[(1'-(prop-2-yn-1-yl)-1',3'-dihydro-1H-[3,3']biindolyl-2'-on)-1-yl]propane

1,3-bis[(1'-(4-methylbenzyl)-1',3'-dihydro-1H-[3,3']biindolyl-2'-on)-1-yl]propane

dimethyl 2,2'-((2,2'-(propane-1,3-diylbis(1H-indole-1,3-diyl))bis(2-oxoacetyl))bis(azanediyl))(2S,2'S)-bis(3-methylbutanoate)

dimethyl 2,2'-((2,2'-(propane-1,3-diylbis(1H-indole-1,3-diyl))bis(2-oxoacetyl))bis(azanediyl))(2S,2'S)-bis(3-(4-hydroxyphenyl)propanoate)