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Table 3 In vitro fungicidal activity of target compounds 1a–3g

From: Natural phenolic derivatives based on piperine scaffold as potential antifungal agents

Entry

Compd. no.

In vitro fungicidal activity (%)/100 µg/mL

R.Sa

F.Ga

A.Ta

G.Ta

P.Ca

P.Aa

1

1a

21.88

18.26

47.11

51.54

68.38

68.89

2

1b

29.69

36.52

52.89

35.77

31.62

61.85

3

1c

57.50

0.00

−1.65

4.62

14.53

3.70

4

1d

30.63

17.39

71.07

52.31

24.79

40.00

5

1e

17.50

15.65

25.62

27.69

29.06

3.70

6

1f

65.00

31.74

33.06

26.92

30.77

47.41

7

1g

20.94

22.61

7.44

0.00

47.86

23.70

8

2a

18.13

34.78

34.71

43.08

35.90

45.19

9

2b

57.50

62.61

52.07

66.92

100

100.00

10

2c

35.94

18.26

7.44

15.38

35.90

−3.70

11

2d

37.19

19.13

7.44

18.08

38.46

0.00

12

2e

63.75

21.74

−3.31

3.08

27.35

3.70

13

2f

40.94

20.87

2.48

13.85

33.33

−2.22

14

2g

46.56

11.30

9.92

60.77

47.01

29.63

15

3a

30.94

46.09

23.97

30.77

33.33

18.52

16

3b

25.00

35.65

25.62

15.38

23.08

16.30

17

3c

20.94

35.65

13.22

15.00

5.98

3.70

18

3d

21.25

45.22

24.79

38.46

19.66

17.04

19

3e

15.63

33.04

16.53

24.62

24.79

18.52

20

3f

7.81

37.09

16.53

23.08

0.85

29.63

21

3g

18.13

24.35

17.36

30.77

15.38

29.63

22

Piperine

63.13

53.04

66.12

76.92

41.88

29.63

23

Carbendazim

100.00

100.00

13.22

100.00

34.27

100.00

  1. aR.S, Rhizoctonia solani; F.G - Fusarium graminearum, A.T, Alternaria tenuis Nees; G.T, Gloeosporium theae-sinensis; P.C, Phytophthora capsici; P.A, Phomopsis adianticola