Table 2. Quantitative parameters of triterpenoids inhibiting the enzymatic activity of SARS-CoV 3CL protease

Compound ID

IC50 μM

Kia μM

References

16,17

10

8.2 ± 0.7

[18,36]

25

10.3 ± 0.2

4.2 ± 0.6

[45]

26

21.7 ± 0.19

not tested

[45]

27

2.6 ± 0.3

0.8 ± 0.2

[45]

28

9.9 ± 0.1

4.0 ± 0.1

[45]

29

5.5 ± 0.7

3.1 ± 0.0

[45]