(2S)-3-(1H-indol-3-yl)-2-[[2-(1H-indol-3-yl)acetyl]amino]propanoate (2S)-3-(1H-indol-3-yl)-2-[[2-(1H-indol-3-yl)-1-oxoethyl]amino]propanoate (2S)-3-(1H-indol-3-yl)-2-[[2-(1H-indol-3-yl)acetyl]amino]propionate (2S)-3-(1H-indol-3-yl)-2-[2-(1H-indol-3-yl)ethanoylamino]propanoate ZINC03070964