(2R,3R,4R,4aS,9aS)-3,4-Bis-benzyloxy-2-benzyloxymethyl-3,4,4a,6,9,9a-hexahydro-2H-1-oxa-5-aza-benzocycloheptene-5-carboxylic acid tert-butyl ester

Allyl-((2S,3S,4R,5R,6R)-2-allyl-4,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-3-yl)-carbamic acid tert-butyl ester

Acetic acid (2R,3R,4R,4aS,7R,8S,9aS)-3,7,8-triacetoxy-2-acetoxymethyl-5-acetyl-decahydro-1-oxa-5-aza-benzocyclohepten-4-yl ester

Methanesulfonic acid (S)-2-((2S,3S,4R,5R,6R)-4,5-bis-benzyloxy-6-benzyloxymethyl-3-nitro-tetrahydro-pyran-2-yl)-1-hydroxymethyl-ethyl ester

(2R,3R,4R,4aS,7R,8S,9aS)-3,4-Bis-benzyloxy-2-benzyloxymethyl-7,8-dihydroxy-octahydro-1-oxa-5-aza-benzocycloheptene-5-carboxylic acid tert-butyl ester