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Table 5 NA inhibitory activity of phenanthrenes from Bletilla striata

From: Antiviral activity of phenanthrenes from the medicinal plant Bletilla striata against influenza A virus

Compound

IC50 (μM)

1

72.6 ± 6.5

2

-

3

16.8 ± 1.6

4

21.7 ± 2.9

5

-

6

16.1 ± 2.6

7

-

8

-

9

-

10

87.5 ± 10.1

11

57.6 ± 5.9

12

-

Oseltamivir

0.3 ± 0.02

  1. -: Inhibitory effect on the NA was less than 50%.