7-(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromen-3-yl 7-(2-(4-(hydroxymethyl)phenylamino)-2-oxoethylamino)-7-oxoheptanoate 在
5%-palladium/activated carbon 、
氢气 作用下,
以
1,4-二氧六环 、
乙醇 为溶剂,
以33%的产率得到2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-3-yl 7-(2-(4-(hydroxymethyl)phenylamino)-2-oxoethylamino)-7-oxoheptanoate