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. 2019 Feb 12;8(2):40. doi: 10.3390/plants8020040

Table 1.

Flavonoids from Onopordum acanthium L.

graphic file with name plants-08-00040-i001.jpg

No Name R1 R2 R3 R4 R5 R6
1. Apigenin OH H OH H H OH
2. Luteolin OH H OH H OH OH
3. Scutellarein OH OH OH H H OH
4. Nepetin OH OCH3 OH H OH OH
5. Chrysoeriol OH H OH H OCH3 OH
6. Hispidulin OH OCH3 OH H H OH
7. Pectolinarigenin OH OCH3 OH H H OCH3
8. Scutellarein 4’-methyl ether OH OH OH H H OCH3
9. Quercetin OH H OH OH OH OH
10. Apigenin-7-O-glucoside OH H O-glucose H H OH
11. Apigenin-7-O-rutinoside OH H O-rutinose H H OH
12. Apigenin-7-O-β-D-glucuronide OH H O-glucuronic acid H H OH
13. Luteolin-7-O-glucoside OH H O-glucose H OH OH
14. Quercetin-3-O-glucoside OH H OH O-glucose OH OH
15. Isorhamnetin-3-O-glucoside OH H OH O-glucose OCH3 OH