(3aR,3bR,6S,7R,7aR,8aR)-9-(tert-butylsulfonyl)-6-methoxy-2,2-dimethylhexahydro-7,3b-(epiminoethano)[1,3]dioxolo[4',5':4,5]furo[3,2-b]pyran

(1R,4S,5S,9R)-1-((R)-1-Hydroxy-2,2-bis-phenylsulfanyl-ethyl)-4-methoxy-6-(2-methyl-propane-2-sulfonyl)-2-oxa-6-aza-bicyclo[3.3.1]nonan-9-ol