5-[[5-[3,4-二羟基-4-(羟基甲基)四氢呋喃-2-基]氧基-3,4-二羟基-6-[5-羟基-2-(4-羟基-3-甲氧基苯基)-7-甲氧基-4-氧代苯并吡喃-3-基]氧基四氢吡喃-2-基]甲氧基]-3-羟基-3-甲基-5-氧代戊酸

5-[[5-[3,4-dihydroxy-4-(hydroxymethyl)oxolan-2-yl]oxy-3,4-dihydroxy-6-[5-hydroxy-2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-4-oxochromen-3-yl]oxyoxan-2-yl]methoxy]-3-hydroxy-3-methyl-5-oxopentanoic acid