Table 1.
IC50 values of β-pinene-based derivatives against five plant pathogens (μmol/L).
| Compounds | Skeleton | R | Colletotrichum gloeosporioides | Fusarium proliferatum | Alternaria kikuchiana | Phomopsis sp. | Phytophthora capsici |
|---|---|---|---|---|---|---|---|
| 1 |
|
- | >1000 | >1000 | >1000 | >1000 | >1000 |
| 2 |
|
- | >1000 | >1000 | >1000 | >1000 | >1000 |
| 3 |
|
- | >1000 | 417.54 | >1000 | >1000 | 224.10 |
| 4a |
|
|
364.60 | 147.38 | 134.62 | 98.89 | 626.25 |
| 4b |
|
>1000 | 554.30 | 151.44 | 270.73 | 423.72 | |
| 4c |
|
755.05 | 397.69 | 64.17 | 68.35 | 499.01 | |
| 4d |
|
>1000 | 200.61 | >1000 | 123.45 | 140.99 | |
| 4e |
|
161.40 | 39.21 | 38.80 | 40.98 | NT | |
| 4f |
|
>1000 | >1000 | >1000 | >1000 | NT | |
| 4g |
|
165.61 | 72.84 | 240.96 | 335.23 | NT | |
| 4h |
|
77.06 | 41.98 | 68.17 | 20.43 | 350.63 | |
| 4i |
|
346.00 | 376.94 | 389.92 | 112.70 | 864.54 | |
| 4j |
|
179.64 | 549.59 | 320.34 | 184.46 | 375.65 | |
| 4k |
|
>1000 | >1000 | >1000 | 490.82 | NT | |
| 4l |
|
>1000 | NT | >1000 | 217.90 | >1000 | |
| 4m |
|
|
>1000 | >1000 | 894.20 | 120.23 | >1000 |
| 4n |
|
>1000 | >1000 | >1000 | >1000 | >1000 | |
| 4o |
|
498.34 | >1000 | >1000 | 136.54 | 0.18 | |
| 4p |
|
>1000 | >1000 | >1000 | >1000 | >1000 | |
| 4q |
|
>1000 | 143.84 | >1000 | 60.25 | 157.76 | |
| 4r |
|
21.64 | 492.13 | 341.24 | 109.93 | 176.39 | |
| 4s |
|
>1000 | >1000 | >1000 | >1000 | >1000 | |
| 4t |
|
>1000 | 555.32 | >1000 | 240.79 | 557.82 | |
| carbendazim |
|
- | 0.534 | 0.426 | 0.431 | 0.217 | 0.386 |
Note: NT means not tested.