Table 1.
Antifungal activity of the target compounds 6a–6r at 50 µg/mL.
| Compounds | Inhibition Rate (%) against the Tested Fungi | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| F. oxysporum f. sp. cucumerinum | C. arachidicola | P. piricola | A. solani | G. zeae | R. solani | B. myadis | C. orbicalare | Average (I) | |
| 6a (R = Ph) | 34.1 | 64.3 | 64.3 | 60.6 | 54.8 | 19.8 | 37.7 | 35.5 | 46.4 |
| 6b (R = o-Me Ph) | 37.8 | 67.1 | 75.2 | 72.3 | 47.9 | 19.8 | 29.1 | 35.5 | 48.1 |
| 6c (R = m-Me Ph) | 28.5 | 52.9 | 86.1 | 61.3 | 56.6 | 17.3 | 33.4 | 25.7 | 45.2 |
| 6d (R = p-Me Ph) | 30.4 | 50.0 | 66.5 | 33.1 | 47.9 | 53.9 | 24.9 | 29.6 | 42.0 |
| 6e (R = m-OMe Ph) | 28.5 | 64.3 | 55.7 | 65.0 | 58.3 | 14.9 | 24.9 | 27.6 | 42.4 |
| 6f (R = p-OMe Ph) | 21.1 | 50.0 | 68.7 | 50.9 | 39.3 | 17.3 | 22.8 | 25.7 | 37.0 |
| 6g (R = p-F Ph) | 21.1 | 70.0 | 64.3 | 77.3 | 56.6 | 17.3 | 27.0 | 27.6 | 45.2 |
| 6h (R = m-Cl Ph) | 30.5 | 80.6 | 55.5 | 69.7 | 56.8 | 19.3 | 36.5 | 33.6 | 47.8 |
| 6i (R = p-Cl Ph) | 29.8 | 69.3 | 80.2 | 61.3 | 58.1 | 22.3 | 38.4 | 28.7 | 48.5 |
| 6j (R = m, p-Cl Ph) | 36.1 | 66.3 | 66.3 | 70.3 | 65.4 | 21.8 | 39.7 | 49.3 | 51.9 |
| 6k (R = o-Br Ph) | 32.2 | 64.3 | 75.2 | 69.0 | 47.9 | 14.9 | 35.5 | 33.5 | 46.6 |
| 6l (R = m-Br Ph) | 26.7 | 52.9 | 51.3 | 71.0 | 30.7 | 19.8 | 35.5 | 29.6 | 39.7 |
| 6m (R = p-Br Ph) | 34.1 | 67.1 | 64.3 | 61.3 | 27.2 | 17.3 | 29.1 | 31.6 | 41.5 |
| 6n (R = o-CF3 Ph) | 34.1 | 61.4 | 57.8 | 72.8 | 79.0 | 16.1 | 31.3 | 37.5 | 48.8 |
| 6o (R = m-NO2 Ph) | 26.7 | 72.9 | 53.5 | 70.9 | 56.6 | 17.3 | 29.1 | 25.7 | 44.1 |
| 6p (R = p-NO2 Ph) | 35.9 | 72.9 | 36.1 | 63.8 | 51.4 | 17.3 | 35.5 | 37.5 | 43.8 |
| 6q (R = i-Pr) | 34.1 | 70.0 | 86.1 | 60.6 | 58.3 | 17.3 | 22.8 | 29.6 | 47.4 |
| 6r (R = n-Bu) | 28.5 | 61.4 | 75.2 | 63.8 | 51.4 | 14.9 | 24.9 | 27.6 | 43.5 |
| Average (II) | 30.6 | 64.3 | 65.7 | 64.2 | 52.5 | 19.9 | 31.0 | 31.7 | - |
| Chlorothalonil | 100 | 73.3 | 75.0 | 73.9 | 73.1 | 96.1 | 90.4 | 91.3 | - |