Alpha-pyrone glycosides from Scutellaria salviifolia Benth


DOĞAN Z., Ishiuchi K., Makino T., SARAÇOĞLU İ.

TURKISH JOURNAL OF CHEMISTRY, cilt.43, sa.3, ss.972-981, 2019 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 43 Sayı: 3
  • Basım Tarihi: 2019
  • Doi Numarası: 10.3906/kim-1811-58
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.972-981
  • Anahtar Kelimeler: Scutellaria species, methyl-alpha-pyrone glucosides, scusalviosides A and B, phloroglucinol derivatives, flavonoids, PHENOLIC-COMPOUNDS, CHEMICAL-CONSTITUENTS, MEDICINAL-PLANTS, AERIAL PARTS, ANTIOXIDANT ACTIVITIES, ANTICANCER ACTIVITY, FLAVONOIDS, EXTRACT, BAICALENSIS, L.
  • Hacettepe Üniversitesi Adresli: Evet

Özet

Scutellaria salviifolia Benth. is an endemic species growing in Turkey that belongs to the family Lamiaceae. As a result of a phytochemical study on the aerial parts of S. salviifolia Benth., two new and 10 known compounds were isolated from the aqueous fraction of methanolic extract. The new compounds are methyl-ff-pyrone glucosides, 3,4-dihydroxy-6-methylpyran-2-one 3-O-beta-glucopyranoside (=scusalvioside A, 1), and 3,4-dihydroxy-6-methylpyran2- one 3-O-beta-(6 '-O-E-caffeoyl) glucopyranoside (=scusalvioside B, 2) with new skeletal structures. Along with them, 3 phloroglucinol glucosides [phlorin (3), tadehaginoside (4), and 6 ''-O-Z-p-coumaroyl phloroglucinol-1-O-beta-glucopyranoside (5)], 6 flavonoids [apigenin (6), apigenin 5-O-beta-glucopyranoside (7), isoschaftoside (8), luteolin 7O -beta-glucuronide (9), luteolin 4'-O-beta-glucopyranoside (10), and hispidulin (11)], and one phenylethanoid glycoside [martynoside (12)] were also isolated as known compounds. Compounds 2 and 8 were isolated as a mixture. Structure elucidations of the isolated compounds were carried out using UV, H-1 NMR, C-13 NMR, 2D NMR, and HR-ESI-MS analyses. Moreover, the phenylethanoid glycosides acteoside (13) and leucosceptoside A (14) were also detected in the plant by HPLC-DAD study. Tadehaginoside, 6 ''-O-Z-p-coumaroyl phloroglucinol-1-O-beta-glucopyranoside, and luteolin 4 '-O-fi-glucopyranoside were reported for the first time from a Scutellaria species with this study.