Table 2. EC50 values of title compounds IV-26 and IV-30~IV-36 against five B. cinerea strains.
| Compound number | n | R1 | EC50 (mg/L) (95% confidence limits of EC50) |
||||
|---|---|---|---|---|---|---|---|
| As-11 | Cy-09 | Dl-11 | Fs-11 | Hld-15 | |||
| IV-26 a | 2 | H | 0.41 (0.08–2.01) | 1.13 (0.46–2.75) | 0.15 (0.02–1.26) | 3.64 (1.72–7.72) | 1.87 (1.06–3.31) |
| IV-30 a | 1 | H | 0.66 (0.17–2.48) | 2.28 (1.54–3.38) | 0.77 (0.32–1.87) | 11.68 (9.08–15.03) | 0.85 (0.39–1.86) |
| IV-31 a | 3 | H | 4.59 (2.87–7.33) | 1.36 (0.58–3.15) | 0.96 (0.47–1.99) | 9.49 (2.22–40.56) | 0.82 (0.20–3.26) |
| IV-32 a | 2 | 3-CH3 | 14.76 (2.92–74.55) | 10.71 (0.71–160.53) | 0.01 (0.00–25.75) | 7.93 (2.60–24.18) | 0.96 (0.13–7.13) |
| IV-33 a | 2 | 4-CH3 | 0.18 (0.01–2.95) | 2.23 (0.37–13.43) | 0.15 (0.02–1.32) | 15.56 (5.34–45.32) | 0.15 (0.01–2.67) |
| IV-34 a | 2 | 5-CH3 | 0.56 (0.06–4.85) | 6.19 (2.94–13.04) | 2.22 (1.37–3.59) | 16.75 (7.52–37.27) | 1.19 (0.47–2.98) |
| IV-35 ab | 2 | 5-C2H5 | 51.4 (2.52–1049.18) | 19.87 (1.42–277.31) | 0.22 (0.01–4.01) | 16.42 (5.30–50.84) | 31.99 (3.84–266.66) |
| IV-36 c | 2 | 5-C(CH3)3 | >100 | 44.12 (18.73–103.92) | 9.49 (6.30–14.28) | >100 | 30.76 (18.10–52.25) |
| procymidone bc | — | — | 0.22 (0.07–0.65) | 20.00 (14.52–27.55) | 4.40 (3.43–5.65) | >100 | >100 |
The letters a–d denoted the difference significance analysis results of the same compound against five different strains. Means followed by the same letter within the same column are not significantly different (p > 0.05, Fisher1s LSD multiple comparison test).