苯甲酸银

(2R,3R,4R)-2-hydroxy-5-oxopentane-1,3,4-triyl tribenzoate

乙酸酐

methyl 3,5-O-di-t-butylsilylene-α-D-arabinofuranoside

2,3,5-tri-O-benzoyl-α-D-ribofuranose