5-methyl-1H-pyrrole-2-carboxylic acid-3'-ester of ethyl 7-[(6-deoxy-5-C-methyl-4-O-methyl-alpha-L-lyxo-hexopyranosyl)oxy]-8-methyl-2-oxo-4-(phenylmethoxy)-2H-1-benzopyran-3-carboxylate 在
palladium 10% on activated carbon
氢气 作用下,
以
乙醇 为溶剂,
反应 5.0h,
生成 5-methyl-1H-pyrrole-2-carboxylic acid-3'-ester of ethyl 7-[(6-deoxy-5-C-methyl-4-O-methyl-alpha-L-lyxo-hexopyranosyl)oxy]-4-hydroxy-8-methyl-2-oxo-2H-1-benzopyran-3-carboxylate