ethyl 3-(1H-indol-3-yl)-2-nitropropanoate

1-methyl-2,3-bis(phenylsulfanyl)indole

3-(3-nitrobenzoyl)indole

indol-3-yl-glyoxylic acid dibenzylamide

1-(phenylsulfonyl)indol-3-yl trifluoromethanesulfonate