tert-butyl (2S,5S,6R)-2-[(benzyloxy)methyl]-6-[(1S,3S)-1,3-dihydroxynonyl]-1-azaspiro[4.5]decane-1-carboxylate

tert-butyl (2S,5S,6R)-2-[(benzyloxy)methyl]-6-{(1S,3S)-1-hydroxy-3-[(methylsulfonyl)oxy]nonyl}-1-azaspiro[4.5]decane-1-carboxylate

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

(S)-2-Benzyloxymethyl-5-[4-(tert-butyl-diphenyl-silanyloxy)-butyl]-3,4-dihydro-2H-pyrrole

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