2,3-O-isopropylidene-6-O-triphenylmethyl-D-mannono-δ-lactam

(3S,4S,5R,6R)-3,4,5-tris(benzyloxy)-6-<(benzyloxy)methyl>piperidin-2-one

(3S,4S,5R,6R)-6-(tert-butyldimethylsilanyloxymethyl)-3,4,5-trihydroxy-piperidin-2-one

2,3-O-异亚丙基-L-古洛糖酸内酯

6-O-tert-butyldimethylsilyl-2,3-O-isopropylidene-D-mannono-δ-lactam