3-(3,5-二甲氧基苯氧基)丙酸

ethyl 2-(3,5-dimethoxyphenoxy)propanoate

6-hydroxy-3,3-dimethyl-3H-pyrano<2',3':7,8>chromeno<2,3-b>pyridin-7-one

6,8-dihydroxychromeno[2,3-b]pyridin-5-one

4-(5,7-dimethoxy-2,3-dihydro-1,4-benzoxathiin-2-yl)benzene-1,2-diol