Two new resorcinol derivatives, named agrimopilosides A and B (1 and 2), along with two known compounds, (2S, 3S)-aromadendrin 3-O-β-D-glucopyranoside (3), (2S, 3S)-glucodistylin (4) were isolated from the aerial parts of Agrimonia pilosa. Their chemical structures were determined by mean of HRMS, NMR, CD spectra, and as well as by comparison with the reported data. At concentration of 20 μM, compounds 1–4 modestly inhibited NO production in LPS-stimulated RAW264.7 cells, with the inhibitory rates in the range of 9.55–33.73%. None of them showed cytotoxicity toward HepG2, MCF-7, and SK-LU-1 human cancer cells by MTT assay.
ChiV.V. (2012) The Dictionary of Medicinal Plants in Vietnam.Medical Publishing House: Hanoi, Vol. 1, 1328–1329.
2.
(a) LiuW.J., HouX.Q., ChenH., LiangJ.Y., SunJ.B. (2016) Chemical constituents from Agrimonia pilosa Ledeb. and their chemotaxonomic significance. Natural Products Research, 30, 2495–2499; (b) Na B, Nguyen PH, Zhao BT, Vo QH, Min BS, Woo MH. (2016) Protein tyrosine phosphatase 1B (PTP1B) inhibitory activity and glucosidase inhibitory activity of compounds isolated from Agrimonia pilosa. Pharmaceutical Biology, 54, 474–480; (c) Chen L, Teng H, Fang T, Xiao J. (2016) Agrimonolide from Agrimonia pilosa suppresses inflammatory responses through down-regulation of COX-2/iNOS and inactivation of NF-κB in lipopolysaccharide-stimulated macrophages. Phytomedicine, 23, 846–855; (d) Chang YJ, Lee DU, Nam JH, Kim WK. (2016) Inhibitory effect of Agrimonia pilosa leaf extract on the UV-induced photoaging-related ion channel, ORAI1, and the enzymes tyrosinase and elastase. Journal of Food Biochemistry, 40, 2–9.
3.
BraseS., EncinasA., KeckJ., NisingC.F. (2009) Chemistry and biology of mycotoxins and related fungal metabolites. Chemical Reviews, 109, 3903–3990.
4.
PescitelliG., Di BariL., CaporussoA.M., SalvadoriP. (2008) The prediction of the circular dichroism of the benzene chromophore: TDDFT calculations and sector rules. Chirality, 20, 393–399.
5.
XuT., KoH.M., SavageN.A., DongG. (2012) Highly enantioselective Rh-catalyzed carboacylation of olefins: Efficient syntheses of chiral poly-fused rings. Journal of American Chemical Society, 134, 20005–20008.
DübelerA., VoltmerG., GoraV., LunderstädtJ., ZeeckA. (1997) Phenols from Fagus sylvatica and their role in defence against Cryptococcus fagisuga. Phytochemistry, 45, 51–57.