(1S,4R,4'S,4aS,5S,6S,8aR)-4'-benzyloxycarbonylamino-6-triethylsilyloxy-1,3',4',4,4a,6,7,8a-octahydrospiro[furan-2'(5H),5(8H)-1,4-methanonaphthalene]-5',8-dione

(1S,2R,4S,5R,6R)-5-((S)-2-amino-3-((tert-butyldiphenylsilyl)oxy)propyl)-4,5-dihydroxy-7-oxabicyclo[4.1.0]heptan-2-yl 4-methylbenzenesulfonate