1 CRZ 4-(9h-carbazol-9-yl)butanoic acid 1.000 2 SRK 4-(2,3-dihydroindol-1-yl)-4-oxidanylidene-butanoic acid 0.750 3 R3R 9-propanoyl-9h-carbazole-3-carbaldehyde, bound form 0.727 4 TTR 9-acetyl-2,3,4,9-tetrahydro-1h-carbazol-1-one 0.714 5 QKG 4-(7-methoxy-1-methyl-9h-beta-carbolin-9-yl)butanamide 0.708