Natural Products from Lysimachia patungensis
Natural Products Isolated from Lysimachia patungensis
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Natural Products from Lysimachia patungensis
2 natural product s associated with Lysimachia patungensis
| Catalog No. | Product Name | CAS Number | COA |
|---|---|---|---|
| BCN6333 |
Licochalcone B
|
58749-23-8 | COA |
| BCN5665 |
Quercitrin
|
522-12-3 | COA |
References
Two new phenols from Lysimachia patungensis.[Pubmed: 27308956]
Two new phenols, methyl 3-(2-O-β-d-glucopyranosyl-3-hydroxy-5-methoxyphenyl) propionate (1) and myricetin-3,3',5'-tri-O-α-l-rhamnopyranoside (2), together with six known phenols compounds (3-8), were isolated from the whole plant of Lysimachia patungensis Hand.-Mazz. Their structures were elucidated on the basis of the interpretation of spectroscopic data, viz., ESI-MS, HR-TOF-MS, UV, IR, and NMR. All the known phenols were isolated from the genus Lysimachia for the first time. A preliminary bioassay revealed that compounds 3 and 7 exhibited significant protective effects against hydrogen peroxide-induced damage in human retinal endothelial cells (HRECs) with the concentration of 10 μM, respectively. Compound 1 showed moderate activity against the HRECs damage at 100 μM.
[Phenolic constituents from Lysimachia patungensis].[Pubmed: 23724651]
To study the chemical constituents of Lysimachia patungensis Hand.-Mazz., silica gel column chromatography, reverse phase ODS column chromatography, MCI and Sephadex LH-20, were used to separate the 95% EtOH extract of the whole plant of Lysimachia patungensis Hand.-Mazz.. The structures of the isolated compounds have been established on the basis of chemical and NMR spectroscopic evidence as well as ESI-MS in some cases. Twelve phenolic compounds were obtained and identified as quercetin-3, 3'-di- O-alpha-L-rhamnoside (1), myricetrin (2), quercitrin (3), rutin (4), 2-hydroxynaringenin-4'-O-glucopyranoside (5), naringenin 7-O-glucopyranoside (6), liquiritin apioside (7), licochalcone B (8), tetrahydroxymethoxy chalcone (9), methyl-p-coumarate (10), 2, 4, 6-trihydroxy acetophenone-2-O-glucopyranoside (11) and vaccihein A (12). Among them, compound 1 is a new compound, and compounds 5, 11 and 12 are isolated from the genus Lysimachia L. for the first time, and the others are isolated from the plant for the first time.