甲基2,3,4-三-O-苯甲酰-α-D-吡喃葡萄糖苷

methyl 2,3,4-tri-O-benzoyl-6-O-triphenylmethyl-α-D-glucopyranoside

methyl 2,3-di-O-benzoyl-4,6-di-O-tosyl-α-D-glucopyranoside

甲醇

氨气