3′-Omethyl-5′-hydroxydiplacone
3′-Omethyl-5′-hydroxydiplacone (compound 2), an C-6-geranylflavonoid, can be isolated from the ethanol extract of Paulownia tomentosa fruits. 3′-Omethyl-5′-hydroxydiplacone has antibacterial activity against Gram-positive bacteria[1].