(+)-(2R,3S,4S)-3,4-dihydroxy-5,7,3',4'-tetramethoxyflavan

(+)-(2R,3S,4R)-3,4-dihydroxy-5,7,3',4'-tetramethoxyflavan

3,4-二甲氧基苯甲醛

(+)-3',4',5,7-tetra-O-methyl-2,3-trans-dihydroquercetin

3,4-二甲氧基苯甲酸