7-(benzyloxy)-2-(3,4-bis(benzyloxy)phenyl)-5-hydroxy-4-oxo-4H-chromen-3-yl 7-(2-(4-(2-tert-butoxy-2-oxoethyl)phenylamino)-2-oxoethylamino)-7-oxoheptanoate 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以52%的产率得到2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-3-yl 7-(2-(4-(2-tert-butoxy-2-oxoethyl)phenylamino)-2-oxoethylamino)-7-oxoheptanoate