label: 6-(N-benzyl-N-tert-butoxycarbonylamino)-2,3,6,7-tetradeoxyhept-2-enopyranose-4-ulose, ((2alpha(S*),6beta)-(+-)) isomer
label_lc: 6-(n-benzyl-n-tert-butoxycarbonylamino)-2,3,6,7-tetradeoxyhept-2-enopyranose-4-ulose, ((2alpha(s*),6beta)-(+-)) isomer