methyl (S,E)-3-(4-(2-((tert-butoxycarbonyl)amino)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-benzamido-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-(benzylamino)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(S,E)-2-((2,3-dimethylphenyl)amino)-N-(1-(4-(3-(hydroxyamino)-3-oxoprop-1-en-1-yl)phenoxy)-3-(1H-indol-3-yl)propan-2-yl)benzamide

(S,E)-methyl 3-(4-(3-(1H-indol-3-yl)-2-(2-propylpentanamido)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-(4-chlorobenzamido)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(E)-methyl 3-(4-((S)-2-((R)-2-((tert-butoxycarbonyl)amino)-3-hydroxypropanamido)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-((4-chlorobenzyl)amino)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-([1,1′-biphenyl]-4-ylcarboxamido)-3-(1H-indol-3yl)propoxy)phenyl)acrylate

(S,E)-methyl 3-(4-(2-(2-chlorobenzamido)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate

tert-butyl (S,E)-(1-(4-(3-(hydroxyamino)-3-oxoprop-1-en-1-yl)phenoxy)-3-(1H-indol-3-yl)propan-2-yl)carbamate

tert-butyl ((R)-1-(((S)-1-(4-((E)-3-(hydroxyamino)-3-oxoprop-1-en-1-yl)phenoxy)-3-(1H-indol-3-yl)propan-2-yl)amino)-4-(methylthio)-1-oxobutan-2-yl)carbamate