methyl 2,4-di-O-benzoyl-3-O-p-tolylsulfonyl-α-D-xylopyranoside

(4,5-dihydroxy-2-methoxyoxan-3-yl) methanesulfonate

methyl-2-nitrobutyrate

methyl 4-O-benzoyl-β-L-arabinopyranoside

甲酸