trans-(1S,3R)-(-)-2-benzyl-3-ethoxycarbonyl-7-methoxy-1-methoxycarbonylethyl-9-methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole

Nα-benzyl-6-methoxy-1-methyl-D-tryptophane ethyl ester

(-)-3-{[(2R,5S)-2,5-dihydro-5-(1-methylethyl)pyrazinyl]methyl}-6-methoxy-1-methyl-2-(triethylsilyl)-1H-indole

(-)-3-{[(2R,5S)-2,5-dihydro-5-(1-methylethyl)pyrazinyl]methyl}-6-methoxy-2-(triethylsilyl)-1H-indole

(-)-(6S,10S)-5,6,7,8,10,11-hexahydro-3-methoxy-5-methyl-6,10-imino-9H-cyclooct[b]indol-9-one