(3S,5R,7S,7aR,11aR)-3-[(benzyloxy)methyl]-5-hexyldecahydro-1H-pyrrolo[2,1-j]quinolin-7-ol

(S)-5-Benzyloxymethyl-3-[1-hydroxy-meth-(E)-ylidene]-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

(2S,5S)-2-Allyl-5-benzyloxymethyl-2-[4-(tert-butyl-diphenyl-silanyloxy)-butyl]-pyrrolidine-1-carboxylic acid tert-butyl ester

(2S,5S,6R)-2-Benzyloxymethyl-6-formyl-1-aza-spiro[4.5]decane-1-carboxylic acid tert-butyl ester

(2S,5S)-2-Allyl-5-benzyloxymethyl-2-[4-(tert-butyl-diphenyl-silanyloxy)-butyl]-pyrrolidine