TABLE 1.
Possible antiviral drug candidates from natural products
| Plant sources | Isolated molecules | Active against virus | References |
|---|---|---|---|
| Scutellaria baicalensis Georgi | Isoscutellarein (76) | Influenza virus | (Nagai, Miyaichi, Tomimori, Suzuki, & Yamada, 1992) |
| Kaempferia parviflora Wall. ex Baker |
5,7‐Dimethoxyflavone (77), Tetramethyllueteonin (78), Tri methyl apigenin (79), 5‐Hydroxy‐7‐methoxyflavone (80), |
Avian influenza virus (H5N1) | (Sornpet, Potha, Tragoolpua, & Pringproa, 2017) |
| Curcuma longa L. | Curcumin(diferuloylmethane) (9) | H5N1 | (Sornpet et al., 2017) |
| Ginkgo biloba L., Cephalotaxus harringtonia K. | Ginkgetin (81) | Influenza virus | (Miki et al., 2007) |
| Houttuynia cordata Thunb. | Quercetin 3‐rhamnoside (82) | Influenza virus | (Choi, Song, Park, & Kwon, 2009) |
| Tripterygium regelii Sprague &Takeda |
Celastrol (83), Pristimerin (84), Tingenone (85), Iguesterin (26) |
SARS‐CoV | (Ryu et al., 2010) |
| Ecklonia cava |
Dieckol (86), Eckol (87), Triphloretol A (88), Dioxinodehydroeckol (89), 2‐Phloroeckol (90), 7‐Phloroeckol (91), Phlorofucofuroeckol A (92), Fucodiphloroethol G (93) |
SARS‐CoV | (Park et al., 2013) |
Note: Catechin (10): immunostimulatory and antimitotic inhibitors; Coumarin (9): Protease Inhibitors For chemical structures of compounds refer to Figure 2f,g.