(S)-3-[(3aR,8aS)-3a-(tert-Butyl-dimethyl-silanyloxy)-2,3,3a,8a-tetrahydro-furo[2,3-b]indol-8-yl]-2-methyl-propan-1-ol

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

(E)-2-Trimethylsilanylmethyl-hept-2-enoyl chloride

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

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