1 Y30 3-{(1s)-2-(tert-butylamino)-1-[{4-[(4-chlorobenzyl)oxy]benzyl}(formyl)amino]-2-oxoethyl}-6-chloro-1h-indole-2-carboxylic acid 1.000 2 TJ2 3-{(1s)-2-(tert-butylamino)-1-[(4-chlorobenzyl)(formyl)amino]-2-oxoethyl}-6-chloro-1h-indole-2-carboxylic acid 0.756 3 07G 2-(tert-butylamino)-1-(2-carboxy-6-chloro-1h-indol-3-yl)-1-[(3,4-difluorobenzyl)(formyl)amino]-2-oxoethylium 0.738 4 B5K 3-[(1~{R})-2-(~{tert}-butylamino)-1-[methanoyl-[[3,4,5-tris(fluoranyl)phenyl]methyl]amino]-2-oxidanylidene-ethyl]-6-chloranyl-1~{H}-indole-2-carboxylic acid 0.721