3-Benzenesulfinyl-5-ethyl-1-[2-(1H-indol-3-yl)-ethyl]-piperidin-2-one

(6R,7R)-7-(2-ethoxy-2-oxoethyl)-6-ethyl-2-(1H-indol-3-yl)-5,6,7,8-tetrahydrooxazolo<3,2-a>pyridinium chloride

((1H-indolyl-3)-2 ethylene)-1 ethyl-5 dihydro-3,4 pyridone-2

4-{[(E)-2-(1H-Indol-3-yl)-ethylimino]-methyl}-hexanoic acid methyl ester

(3R,4S)-6-ethoxy-3-ethyl-2,3,4,5-tetrahydro-4-pyridineacetic acid ethyl ester