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

(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

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