1-(3-甲氧基-2-呋喃基)乙酮

2-acetyl-2,3,5-trimethoxy-2,5-dihydrofuran

methyl 6-deoxy-2,3-O-isopropylidene-α-L-lyxo-hexopyranoside-4-ulose

4-(α-D-glocopyranosyloxy)-2-hydroxy-2-methyl-2H-pyran-3(6H)-one