Potent In Vitro Phosphodiesterase 1 Inhibition of Flavone Isolated from Pistacia integerrima Galls

Figure 1

Structure of compound 1 [5-hydroxy-7-methoxy-2-(4-methoxyphenyl)-4H-chromen-4-one]; (a) 2D and (b) 3D ball and stick model.

(a)

(b)