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New flavonol glycosides from the leaves of Triantha japonica and Tofieldia nuda.
Nat Prod Commun. 2013 Sep; 8(9):1251-4.NP

Abstract

Two new flavonol glycosides were isolated from the leaves of Triantha japonica, together with eight known flavonols, kaempferol 3-O-sophoroside, kaempferol 3-O-sambubioside, kaempferol 3-O-glucosyl-(1 --> 2)-[glucosyl-(1 --> 6)-glucoside], quercetin 3-O-sophoroside, quercetin 3-O-sambubioside, isorhamnetin 3-O-glucoside, isorhamnetin 3-O-sophoroside and isorhamnetin 3-O-sambubioside. The new compounds were identified as kaempferol 3-O-beta-xylopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-glucopyranoside] (1) and isorhamnetin 3-O-beta-xylopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-glucopyranoside] (3) by UV, LC-MS, acid hydrolysis, and 1H and 13C NMR spectroscopy. Another two new flavonol glycosides were isolated from theleaves of Tofieldia nuda, and identified as kaempferol 3-O-beta-glucopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-galactopyranoside] (4) and quercetin 3-O-beta-glucopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-galactopyranoside] (5). Though the genera Triantha and Tofieldia were treated as Tofieldia sensu lato, they were recently divided into two genera. It was shown by this survey that their flavonoid composition were also different to each other.

Authors+Show Affiliations

Department of Botany, National Museum of Nature and Science, Tsukuba, Ibaraki 305-0005, Japan. iwashina@kahaku.go.jpNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

24273859

Citation

Iwashina, Tsukasa, et al. "New Flavonol Glycosides From the Leaves of Triantha Japonica and Tofieldia Nuda." Natural Product Communications, vol. 8, no. 9, 2013, pp. 1251-4.
Iwashina T, Tamura MN, Murai Y, et al. New flavonol glycosides from the leaves of Triantha japonica and Tofieldia nuda. Nat Prod Commun. 2013;8(9):1251-4.
Iwashina, T., Tamura, M. N., Murai, Y., & Kitajima, J. (2013). New flavonol glycosides from the leaves of Triantha japonica and Tofieldia nuda. Natural Product Communications, 8(9), 1251-4.
Iwashina T, et al. New Flavonol Glycosides From the Leaves of Triantha Japonica and Tofieldia Nuda. Nat Prod Commun. 2013;8(9):1251-4. PubMed PMID: 24273859.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - New flavonol glycosides from the leaves of Triantha japonica and Tofieldia nuda. AU - Iwashina,Tsukasa, AU - Tamura,Minoru N, AU - Murai,Yoshinori, AU - Kitajima,Junichi, PY - 2013/11/27/entrez PY - 2013/11/28/pubmed PY - 2014/1/24/medline SP - 1251 EP - 4 JF - Natural product communications JO - Nat Prod Commun VL - 8 IS - 9 N2 - Two new flavonol glycosides were isolated from the leaves of Triantha japonica, together with eight known flavonols, kaempferol 3-O-sophoroside, kaempferol 3-O-sambubioside, kaempferol 3-O-glucosyl-(1 --> 2)-[glucosyl-(1 --> 6)-glucoside], quercetin 3-O-sophoroside, quercetin 3-O-sambubioside, isorhamnetin 3-O-glucoside, isorhamnetin 3-O-sophoroside and isorhamnetin 3-O-sambubioside. The new compounds were identified as kaempferol 3-O-beta-xylopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-glucopyranoside] (1) and isorhamnetin 3-O-beta-xylopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-glucopyranoside] (3) by UV, LC-MS, acid hydrolysis, and 1H and 13C NMR spectroscopy. Another two new flavonol glycosides were isolated from theleaves of Tofieldia nuda, and identified as kaempferol 3-O-beta-glucopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-galactopyranoside] (4) and quercetin 3-O-beta-glucopyranosyl-(1 --> 2)-[beta-glucopyranosyl-(1 --> 6)-beta-galactopyranoside] (5). Though the genera Triantha and Tofieldia were treated as Tofieldia sensu lato, they were recently divided into two genera. It was shown by this survey that their flavonoid composition were also different to each other. SN - 1934-578X UR - https://www.unboundmedicine.com/medline/citation/24273859/New_flavonol_glycosides_from_the_leaves_of_Triantha_japonica_and_Tofieldia_nuda_ DB - PRIME DP - Unbound Medicine ER -