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Table 2 NA inhibition activity of compounds 1–22

From: Polyphenolic glycosides isolated from Pogostemon cablin (Blanco) Benth. as novel influenza neuraminidase inhibitors

Compound

IC50 (μ mol/ml)

Compound

IC50 (μ mol/ml)

Compound

IC50 (μ mol/ml)

1

8.40 ± 1.20

9

6.08 ± 0.20

17

4.69 ± 0.29

2

3.87 ± 0.19

10

6.53 ± 0.38

18

3.29 ± 0.04

3

11.62 ± 0.48

11

3.60 ± 0.02

19

2.74 ± 0.03

4

10.99 ± 1.15

12

2.99 ± 0.12

20

2.12 ± 0.04

5

10.93 ± 0.48

13

7.87 ± 0.13

21

32.67 ± 4.73

6

19.94 ± 1.95

14

3.30 ± 0.12

22

4.70 ± 0.05

7

>200

15

3.64 ± 0.17

  

8

6.32 ± 0.38

16

2.27 ± 0.09

Zanamivir

0.93 ± 0.02

  1. Zanamivir was the positive control; each value represents the mean ± SD (n = 3)