Table 4: Natural flavonoids as inhibitors of SARS-CoV-2 3CLPro and PLPro proteins.

Flavonoid Name

Target

Type of study

Reference

Herbacetin, rhoifolin and pectolonarin

3CLPro

In silico

[4]

Quercetin,epigallo catechin gallate, gallo catechin gallate

3CLPro

In silico and in vitro

[5]

Rutin

PLPro

In silico and simulations

[6]

Hesperidine,and thymoquinone

3CLPro

In vitro

[36]

Bavachinin (1), neobavaisoflavone (2), isobavachalcone (3), 4′-O-methylbavachalcone (4), psoralidin (5) and corylifol A

PLPro

In vitro

[37]

Quercetin, baicalin, luteolin, hesperetin

NTPase/helicase

In vitro, In silico

[38]