| Structure Identification: |
| Chem Pharm Bull (Tokyo). 1994 Aug;42(8):1669-71. | | Studies on the constituents of Ailanthus integrifolia.[Pubmed: 7954920] |
METHODS AND RESULTS:
A new phenolic glycoside, 3,4,5-trimethoxyphenol-1-(6-xylopyranosyl)glucopyranoside, was isolated together with twenty known compounds identified as koaburaside, 3,4,5-trimethoxyphenol, 5,7-dihydroxychromone-7-neohesperidoside, naringin, neoeriocitrin, p-coumaric acid, vanillin, vanillic acid, coniferyl aldehyde, ferulic acid, trans-triacontyl-4-hydroxy-3-methoxycinnamate, p-methoxycinnamic acid, 2,6-dimethoxybenzoquinone, 2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-dione, 2-acetylnaphtho[2,3-b]furan-4,9-dione, 2-(1-hydroxyethyl)-6-methoxynaphtho[2,3-b]furan-4,9-dione, 2-acetyl-6-methoxynaphtho[2,3-b]furan-4,9-dione, specioside, jioglutin C and Rehmaglutin D from the bark of Ailanthus integrifolia Lamk (Simaroubaceae). | | Phytochemistry. 2002 Mar;59(5):537-42. | | Non-glycosidic iridoids from Cymbaria mongolica.[Pubmed: 11853749] |
METHODS AND RESULTS:
Six non-glycosidic iridoids, i.e. (1R,4S,4aS,7S,7aS)-7-hydroxyl-4-hydroxy- methyl-7-methyl-1-methoxyl-1,4,4a,7a-tetrahydrocyclopenta[e]pyran-3-one (1), (1S,4R,4aS,7S,7aS)-7-hydroxyl-4-hydroxymethyl-7-methyl-1-methoxyl-1,4,4a,7a-tetrahydrocyclopenta[e]pyran-3-one (2), (1R,4R,4aS,7S,7aS)-7-hydroxyl-4-hydroxy-methyl-7-methyl-1-methoxyl-1,4,4a,7a-tetrahydrocyclopenta[e]pyran-3-one (3), (1R, 4R, 4aS, 7aS)-4,7-dihydroxymethyl-1-methoxyl-1,4,4a,7a-tetrahydrocyclopenta-6-ene[e]pyran-3-one (4), (1R, 4R, 4aS, 7aS)-4,7-dihydroxymethyl-1-hydroxyl-1,4,4a, 7a-tetrahydrocyclopenta-6-ene[e]pyran-3-one (5), (1R, 4S, 4aS, 7aS)-4,7-dihydroxy-methyl-1-methoxyl-1,4,4a,7a-tetrahydrocyclopenta-6-ene[e]pyran-3-one (6), as well as five known non-glycosidic iridoids mussaenin A (7), gardendiol (8), isoboonein (9), 4-epi-alyxialactone (10) and Rehmaglutin D (11) have been isolated from the Chinese medicinal plant Cymbaria mongolica. |
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