ethyl 3-[3-(2-ethoxy-2-oxoethyl)-1H-indol-2-yl]propanoate

ethyl 3-[1-(2-tert-butoxy-2-oxoethyl)-3-(2-ethoxy-2-oxoethyl)-1H-indole-2-yl]propanoate

ethyl (7-oxo-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl)-acetate

ethyl (2-[4-[dimethyl(oxido)-λ4-sulfanylidene]-3-oxobutyl]-1H-indol-3-yl)acetate

ethyl [(7R)-7-amino-6,7,8,9-tetrahydropyrido[1,2-a]indol-10-yl]acetate hydrochloride