乙酸酐-d6 、
1,2':1',2-dianhydride of 3,4-di-O-acetyl-β-L-rhamnopyranose and methyl 3,4-di-O-acetyl-α-D-galactopyranuronate 在
吡啶 作用下,
以76%的产率得到1,2':1',2-dianhydride of 3,4-di-O-(acetyl-d3)-β-L-rhamnopyranose and methyl 3,4-di-O-(acetyl-d3)-α-D-galactopyranuronate