(S)-4-((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-3a-ylmethoxy)-1-(toluene-4-sulfonyl)-azetidin-2-one

2,2-二甲氧基丙烷

1-O-Allyl-2,3:4,5-di-O-isopropylidene-β-D-fructopyranose

2,3:4,5-di-O-isopropylidene-1-O-vinyl-β-D-fructopyranose

FRUCTOSE, (D)