(2S,3S,5R,8S,10R)-3-(tert-Butyl-dimethyl-silanyloxy)-2-[(1S,3S)-1-(4-methoxy-benzyloxy)-3-methyl-hex-5-ynyl]-8,10-dimethyl-1-oxa-6-aza-spiro[4.5]decane-6-carboxylic acid tert-butyl ester

(2S,3S,5R,8S,10R)-3-Benzoyloxy-2-[(1S,3S)-1-(4-methoxy-benzyloxy)-3-methyl-hex-5-ynyl]-8,10-dimethyl-1-oxa-6-aza-spiro[4.5]decane-6-carboxylic acid tert-butyl ester

(2S,3S,5R,8S,10R)-3-(tert-Butyl-dimethyl-silanyloxy)-2-[(1S,3S)-1-(tert-butyl-dimethyl-silanyloxy)-3-methyl-7-oxo-oct-5-ynyl]-8,10-dimethyl-1-oxa-6-aza-spiro[4.5]decane-6-carboxylic acid tert-butyl ester

(S)-3-Methyl-6-triethylsilanyl-hex-5-ynal

(2R,3R)-5-((1R,3S)-4-Azido-1,3-dimethyl-butyl)-5-methoxy-2-[(1S,3S)-1-(4-methoxy-benzyloxy)-3-methyl-hex-5-ynyl]-tetrahydro-furan-3-ol