Phloroglucinol glycosides from the fresh fruits of Eucalyptus maideni.

Journal of natural products (2010-01-23)
Li-Wen Tian, Ying-Jun Zhang, Chang Qu, Yi-Fei Wang, Chong-Ren Yang
RESUMEN

Five new phloroglucinol glycosides, eucalmainosides A-E (1-5), were isolated from the fresh fruits of Eucalyptus maideni, along with 15 flavonoids (6-20), seven (+)-oleuropeic acid derivatives (15, 16, and 22-26), three hydrolyzable tannins (32-34), and six simple phenolic compounds (21, 27-31). Their structures were determined on the basis of spectroscopic analyses, including HSQC, HMBC, and acidic hydrolysis. The in vitro anti-herpes simplex virus 1 (HSV-1) assay indicated that the flavonols, myricetin (6) and quercetin (7), and the ellagitannin isocoriariin F (33) showed weak anti-HSV-1 activity with TIC values of 0.31, 0.33, and 0.12 mM, respectively.

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Sigma-Aldrich
Gallic acid, 97.5-102.5% (titration)
Sigma-Aldrich
Gallic acid monohydrate, ACS reagent, ≥98.0%
Sigma-Aldrich
Luteolin, ≥98% (TLC), powder
Sigma-Aldrich
Quercetin 3-β-D-glucoside, ≥90% (HPLC)
Sigma-Aldrich
Myricetin, ≥96.0%, crystalline
Sigma-Aldrich
Gallic acid monohydrate, ≥99% (HPLC)
Sigma-Aldrich
Myricetin, ≥96.0% (HPLC)
Supelco
Quercetin 3-glucoside, analytical standard
Isoquercitrin, primary reference standard