(S)-2-[(3aR,8aS)-3a-(tert-Butyl-dimethyl-silanyloxy)-2,3,3a,8a-tetrahydro-furo[2,3-b]indol-8-ylmethyl]-4-eth-(Z)-ylidene-2-methyl-3-oxo-5-trimethylsilanyl-octanoic acid methyl ester

2-Eth-(E)-ylidene-3-trimethylsilanyl-hexanoyl chloride

2-(1-hydroxyethyl)-3-trimethylsilylhexanoic acid ethyl ester

2-(1-methanesulfonyloxyethyl)-3-trimethylsilylhexanoic acid ethyl ester

[(2S),3aR,8aS]-3a-(tert-butyldimethylsilyloxy)-8-(2-methoxycarbonylpropyl)-3,3a,8,8a-tetrahydro-2H-furo[2,3-b]indole