(2′S,3′R)-2′-(3,4-Dihydroxyphenyl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-methoxyphenyl)vinyl]-6′-methyl-2′,3′-dihydro-2H,4′H-3,3′-bipyran-2,4′-dione

(2′S,3′R)-2′-(3,4-dihydroxyphenyl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-6′-methyl-2′,3′-dihydro-2H,4′H-3,3′-bipyran-2,4′-dione

(2′S,3′R)-2′-(3,4-Dihydroxyphenyl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-methoxyphenyl)vinyl]-6′-methyl-2′,3′-dihydro-2H,4′H-3,3′-bipyran-2,4′-dion

(2′S,3′R)-2′-(3,4-Dihydroxyphenyl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-methoxyphenyl)vinyl]-6′-methyl-2′,3′-dihydro-2H,4′H-3,3′-bipyran-2,4′-dione

(2′S,3′R)-2′-(3,4-Dihydroxyphényl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-méthoxyphényl)vinyl]-6′-méthyl-2′,3′-dihydro-2H,4′H-3,3′-bipyrane-2,4′-dione

[3,3′-Bi-2H-pyran]-2,4′(3′H)-dione, 2′-(3,4-dihydroxyphenyl)-4-hydroxy-6-[(E)-2-(4-hydroxy-3-methoxyphenyl)ethenyl]-6′-methyl-, (2′S,3′R)-

methyldavallialactone