(E)-2-[(2S,12bS)-3-Eth-(Z)-ylidene-8-methoxy-1,2,3,4,6,7,12,12b-octahydro-indolo[2,3-a]quinolizin-2-yl]-3-methoxy-acrylic acid methyl ester

1-tert-butoxycarbonyl-2-iodo-3-methoxyaniline

methyl (E)-2-((2S,3S,7aS,12aS,12bS)-3-ethyl-8-methoxy-1,3,4,6,7,12b-hexahydro-2H,12H-7a,12a-(epoxyethanooxy)indolo[2,3-a]quinolizin-2-yl)-3-methoxyacrylate

4-methoxy-D-tryptophan benzyl ester

(R,Z)-benzyl 2-(2-iodobut-2-enylamino)-3-(4-methoxy-1H-indol-3-yl)propanoate