高等学校化学学报 ›› 2024, Vol. 45 ›› Issue (10): 20240369.doi: 10.7503/cjcu20240369
• 有机化学 • 上一篇
王刚, 梁爽, 单忠刚, 英君伍, 吕亮, 李斌, 杨辉斌()
收稿日期:
2024-07-28
出版日期:
2024-10-10
发布日期:
2024-08-21
通讯作者:
杨辉斌
E-mail:yanghuibin@yangnongchem.com
基金资助:
WANG Gang, LIANG Shuang, SHAN Zhonggang, YING Junwu, LYU Liang, LI Bin, YANG Huibin()
Received:
2024-07-28
Online:
2024-10-10
Published:
2024-08-21
Contact:
YANG Huibin
E-mail:yanghuibin@yangnongchem.com
Supported by:
摘要:
以取代吡嗪酸和2-甲基-3-硝基苯酚为原料, 经4步反应合成了16个吡嗪酰胺类似物(化合物1~16), 其结构经核磁共振波谱(1H NMR和13C NMR)及高分辨质谱(HRMS)确证. 杀菌活性测试结果表明, 吡嗪酰胺类似物浓度为6.25 mg/L时对玉米锈病具有优异的杀菌活性, 其中化合物4, 5, 7, 8, 15和16对玉米锈病的杀菌活性为100%. 分子对接模拟结果显示, 化合物16通过氢键与琥珀酸脱氢酶(SDH)的TRP-173相互作用, 这可以解释化合物16与目标蛋白之间可能的作用机制. 研究结果表明, 化合物16是一种具有潜在前景的杀菌剂候选物, 为进一步研究提供了参考.
中图分类号:
TrendMD:
王刚, 梁爽, 单忠刚, 英君伍, 吕亮, 李斌, 杨辉斌. 吡嗪酰胺类似物的设计、 合成及杀菌活性. 高等学校化学学报, 2024, 45(10): 20240369.
WANG Gang, LIANG Shuang, SHAN Zhonggang, YING Junwu, LYU Liang, LI Bin, YANG Huibin. Design, Synthesis and Fungicidal Activity of Pyrazinamide Analogs. Chem. J. Chinese Universities, 2024, 45(10): 20240369.
Compd. | Appearance | Yield(%) | m. p./℃ | HRMS(ESI) |
---|---|---|---|---|
1 | White solid | 73 | 153—154 | Calcd. for C14H16N3O2 [M+H]+: 258.1164, found: 258.1234 |
2 | White solid | 73 | 123—125 | Calcd. for C15H18N3O2 [M+H]+: 272.1321, found: 272.1391 |
3 | White solid | 79 | 117—119 | Calcd. for C16H20N3O2 [M+H]+: 286.1477, found: 286.1548 |
4 | Yellow solid | 84 | 76—77 | Calcd. for C17H22N3O2 [M+H]+: 300.1634, found: 300.1703 |
5 | Brown oil | 78 | 52—54 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
6 | Yellow solid | 75 | 59—61 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 |
7 | White solid | 76 | 59—60 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
8 | Light yellow oil | 76 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2016 | |
9 | Black solid | 84 | 67—69 | Calcd. for C17H22N3O2 [M+H]+: 300.1634, found: 300.1703 |
10 | Red oil | 70 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 | |
11 | Brown solid | 63 | 68—70 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 |
12 | Red oil | 66 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2015 | |
13 | Red solid | 71 | 70—71 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
14 | Red solid | 50 | 43—45 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2018 |
15 | White solid | 69 | 109—111 | Calcd. for C18H21F3N3O2 [M+H]+: 368.1508, found: 368.1580 |
16 | White solid | 74 | 91—93 | Calcd. for C19H23F3N3O2 [M+H]+: 382.1664, found: 382.1734 |
Table 1 Physical properties of compounds 1—16
Compd. | Appearance | Yield(%) | m. p./℃ | HRMS(ESI) |
---|---|---|---|---|
1 | White solid | 73 | 153—154 | Calcd. for C14H16N3O2 [M+H]+: 258.1164, found: 258.1234 |
2 | White solid | 73 | 123—125 | Calcd. for C15H18N3O2 [M+H]+: 272.1321, found: 272.1391 |
3 | White solid | 79 | 117—119 | Calcd. for C16H20N3O2 [M+H]+: 286.1477, found: 286.1548 |
4 | Yellow solid | 84 | 76—77 | Calcd. for C17H22N3O2 [M+H]+: 300.1634, found: 300.1703 |
5 | Brown oil | 78 | 52—54 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
6 | Yellow solid | 75 | 59—61 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 |
7 | White solid | 76 | 59—60 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
8 | Light yellow oil | 76 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2016 | |
9 | Black solid | 84 | 67—69 | Calcd. for C17H22N3O2 [M+H]+: 300.1634, found: 300.1703 |
10 | Red oil | 70 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 | |
11 | Brown solid | 63 | 68—70 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1860 |
12 | Red oil | 66 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2015 | |
13 | Red solid | 71 | 70—71 | Calcd. for C18H24N3O2 [M+H]+: 314.1790, found: 314.1859 |
14 | Red solid | 50 | 43—45 | Calcd. for C19H26N3O2 [M+H]+: 328.1947, found: 328.2018 |
15 | White solid | 69 | 109—111 | Calcd. for C18H21F3N3O2 [M+H]+: 368.1508, found: 368.1580 |
16 | White solid | 74 | 91—93 | Calcd. for C19H23F3N3O2 [M+H]+: 382.1664, found: 382.1734 |
Compd. | 1H NMR(600 MHz, CDCl3), δ | 13C NMR(151 MHz, CDCl3), δ |
---|---|---|
1 | 9.87(s, 1H), 8.56(d, J=2.5 Hz, 1H), 8.35(d, J=2.5 Hz, 1H), 7.72(d, J=8.0 Hz, 1H), 7.14(t, J=8.2 Hz, 1H), 6.64(d, J=8.2 Hz, 1H), 3.77(s, 3H), 3.00(s, 3H), 2.18(s, 3H) | 162.22, 157.82, 156.04, 146.17, 142.64, 139.97, 136.52, 126.66, 117.36, 114.57, 107.13, 55.72, 24.05, 9.79 |
2 | 9.90(s, 1H), 8.63(d, J=2.5 Hz, 1H), 8.42(d, J=2.2 Hz, 1H), 7.74(d, J=8.1 Hz, 1H), 7.17(t, J=8.3 Hz, 1H), 6.69(d, J=8.3 Hz, 1H), 4.03(q, J=6.9 Hz, 2H), 3.04(s, 3H), 2.23(s, 3H), 1.82(s, 1H), 1.41(t, J=7.0 Hz, 3H) | 162.29, 157.28, 156.17, 146.17, 142.80, 140.00, 136.52, 126.65, 117.77, 114.57, 108.43, 64.10, 24.08, 15.04, 9.89 |
3 | 9.86(s, 1H), 8.56(d, J=2.5 Hz, 1H), 8.35(d, J=2.5 Hz, 1H), 7.71(d, J=8.2 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.2 Hz, 1H), 4.47(hept, J=6.1 Hz, 1H), 3.00(s, 3H), 2.18(s, 3H), 1.29(d, J=6.2 Hz, 6H) | 162.18, 156.26, 156.03, 146.15, 142.70, 139.97, 136.73, 126.51, 118.80, 114.48, 110.50, 70.85, 24.06, 22.32, 10.09 |
4 | 9.87(s, 1H), 8.57(d, J=2.6 Hz, 1H), 8.36(d, J=2.4 Hz, 1H), 7.70(d, J=8.2 Hz, 1H), 7.12(t, J=8.1 Hz, 1H), 6.67(d, J=8.3 Hz, 1H), 4.26(h, J=6.1 Hz, 1H), 3.01(s, 3H), 2.20(s, 3H), 1.72(dp, J=14.3, 7.2 Hz, 1H), 1.61(dq, J=13.8, 7.0 Hz, 1H), 1.25(d, J=6.2 Hz, 3H), 0.95(t, J=7.6 Hz, 3H) | 162.20, 156.47, 156.05, 146.15, 142.73, 139.98, 136.70, 126.51, 118.72, 114.37, 110.18, 75.69, 29.36, 24.06, 19.44, 10.06, 9.85 |
5 | 9.89(s, 1H), 8.61(d, J=2.6 Hz, 1H), 8.40(d, J=2.5 Hz, 1H), 7.72(d, J=8.1 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.03(s, 3H), 2.21(s, 3H), 1.78—1.68(m, 1H), 1.59—1.50(m, 1H), 1.52—1.43(m, 1H), 1.45—1.35(m, 1H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.3 Hz, 3H) | 162.24, 156.52, 156.13, 146.16, 142.79, 139.99, 136.69, 126.54, 118.78, 114.40, 110.18, 74.36, 38.86, 24.09, 19.96, 18.85, 14.21, 10.10 |
6 | 9.89(s, 1H), 8.61(d, J=2.6 Hz, 1H), 8.40(d, J=2.5 Hz, 1H), 7.72(d, J=8.5 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.04(s, 3H), 2.21(s, 3H), 1.78—1.69(m, 1H), 1.59—1.35(m, 3H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.4 Hz, 3H) | 162.24, 156.52, 156.13, 146.16, 142.79, 139.99, 136.69, 126.54, 118.79, 114.41, 110.18, 74.37, 38.86, 24.09, 19.96, 18.85, 14.21, 10.11 |
7 | 9.88(s, 1H), 8.58(s, 1H), 8.37(t, J=3.2 Hz, 1H), 7.71(d, J=7.7 Hz, 1H), 7.13(t, J=8.2 Hz, 1H), 6.68(d, J=8.3 Hz, 1H), 4.34(q, J=6.2 Hz, 1H), 3.02(s, 3H), 2.20(s, 3H), 1.72(ddd, J=16.2, 8.7, 5.0 Hz, 1H), 1.53(dq, J=14.5, 5.3 Hz, 1H), 1.45(t, J=6.5 Hz, 1H), 1.43—1.35(m, 1H), 1.26(d, J=6.1 Hz, 3H), 0.91(t, J=7.2 Hz, 3H) | 162.21, 156.50, 156.07, 146.14, 142.75, 139.98, 136.70, 126.52, 118.73, 114.37, 110.14, 74.33, 38.85, 24.06, 19.94, 18.84, 14.20, 10.09 |
8 | 9.90(s, 1H), 8.64(d, J=2.4 Hz, 1H), 8.43(d, J=2.4 Hz, 1H), 7.72(t, J=8.8 Hz, 1H), 7.17(t, J=8.2 Hz, 1H), 6.71(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.05(s, 3H), 2.23(d, J=3.2 Hz, 3H), 1.80—1.63(m, 2H), 1.58(ddt, J=14.7, 10.8, 5.2 Hz, 1H), 1.44(ddd, J=16.4, 8.7, 4.2 Hz, 1H), 1.41—1.31(m, 2H), 1.28(d, J=6.1 Hz, 3H), 0.91(dt, J=18.3, 7.4 Hz, 3H) | 162.26, 156.54, 156.20, 146.17, 142.85, 139.99, 136.68, 126.53, 118.83, 114.43, 110.23, 74.67, 36.40, 24.11, 19.99, 18.74, 14.29, 10.12, 9.63 |
9 | 9.67(s, 1H), 9.43(s, 1H), 8.69(d, J=2.6 Hz, 1H), 8.50(d, J=2.4 Hz, 1H), 7.73(d, J=8.1 Hz, 1H), 7.11(t, J=8.2 Hz, 1H), 6.66(d, J=8.3 Hz, 1H), 4.32(h, J=6.1 Hz, 1H), 2.19(s, 3H), 1.74—1.65(m, 1H), 1.52(ddd, J=14.3, 10.6, 5.5 Hz, 1H), 1.48—1.32(m, 2H), 1.24(d, J=6.2 Hz, 3H), 0.89(t, J=7.2 Hz, 3H) | 160.63, 156.48, 147.52, 144.75, 144.62, 142.55, 136.31, 126.62, 118.55, 114.29, 110.28, 74.33, 38.82, 19.91, 18.82, 14.19, 9.97 |
10 | 9.69(s, 1H), 9.46(s, 1H), 8.74(d, J=2.6 Hz, 1H), 8.54(s, 1H), 7.76(t, J=7.6 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.69(d, J=8.0 Hz, 1H), 4.33(h, J=6.0 Hz, 1H), 2.23(d, J=4.4 Hz, 3H), 1.78—1.61(m, 2H), 1.56(ddt, J=14.6, 10.4, 5.0 Hz, 1H), 1.42(td, J=11.0, 10.5, 5.5 Hz, 1H), 1.40—1.24(m, 5H), 0.88(t, J=6.9 Hz, 3H) | 160.66, 156.50, 147.54, 144.81, 144.70, 142.55, 136.30, 126.66, 118.57, 114.31, 110.34, 74.65, 36.36, 19.96, 18.72, 14.30, 9.99, 9.61 |
11 | 9.64(s, 1H), 9.34(s, 1H), 8.41(s, 1H), 7.78(d, J=8.0 Hz, 1H), 7.16(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 2.64(s, 3H), 2.22(s, 3H), 1.78—1.69(m, 1H), 1.59—1.51(m, 1H), 1.51—1.35(m, 2H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.3 Hz, 3H) | 161.01, 157.41, 156.50, 143.66, 142.32, 142.14, 136.45, 126.64, 118.46, 114.27, 110.22, 74.40, 38.85, 21.93, 19.95, 18.85, 14.20, 9.97 |
12 | 9.63(s, 1H), 9.32(s, 1H), 8.39(s, 1H), 7.76(t, J=7.7 Hz, 1H), 7.14(t, J=8.2 Hz, 1H), 6.68(d, J=7.9 Hz, 1H), 4.33(h, J=6.0 Hz, 1H), 2.62(s, 3H), 2.21(s, 2H), 1.78—1.61(m, 2H), 1.56(dp, J=15.0, 5.1 Hz, 1H), 1.42(td, J=11.3, 10.3, 5.9 Hz, 1H), 1.40—1.28(m, 3H), 1.26(d, J=6.0 Hz, 3H), 0.88(q, J=6.9, 5.9 Hz, 3H) | 160.98, 157.40, 156.48, 143.63, 142.31, 142.12, 136.46, 126.62, 118.42, 114.24, 110.20, 74.64, 36.37, 21.90, 19.96, 18.72, 14.29, 9.97 |
Compd. | 1H NMR(600 MHz, CDCl3), δ | 13C NMR(151 MHz, CDCl3), δ |
13 | 9.73(s, 1H), 9.23(s, 1H), 8.58(s, 1H), 7.74(d, J=8.2 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.2 Hz, 1H), 4.33(h, J=6.1 Hz, 1H), 2.59(s, 3H), 2.20(s, 3H), 1.75—1.64(m, 1H), 1.57—1.49(m, 1H), 1.49—1.33(m, 2H), 1.25(d, J=6.1 Hz, 3H), 0.90(t, J=7.5 Hz, 3H) | 160.84, 156.49, 152.09, 147.48, 143.62, 141.37, 136.41, 126.60, 118.51, 114.23, 110.25, 74.38, 38.83, 21.54, 19.93, 18.82, 14.19, 9.91 |
14 | 9.74(s, 1H), 9.23(s, 1H), 8.59(s, 1H), 7.74(t, J=7.9 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.3 Hz, 1H), 4.31(h, J=6.1 Hz, 1H), 2.60(s, 3H), 2.21(d, J=5.6 Hz, 3H), 1.77—1.60(m, 2H), 1.56(ddt, J=14.6, 10.4, 5.1 Hz, 1H), 1.45—1.36(m, 1H), 1.38—1.24(m, 5H), 0.91—0.84(m, 3H) | 160.85, 156.49, 152.09, 147.48, 143.63, 141.38, 136.41, 126.61, 118.52, 114.23, 110.26, 74.64, 36.36, 21.55, 19.95, 18.71, 14.29, 9.92, 9.59 |
15 | 9.38(s, 1H), 8.79(s, 1H), 8.76(s, 1H), 7.67(d, J=8.2 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.72(d, J=8.3 Hz, 1H), 4.36(h, J=6.1 Hz, 1H), 2.21(s, 3H), 1.74(ddt, J=15.8, 11.5, 5.7 Hz, 1H), 1.56(ddt, J=14.4, 10.8, 5.6 Hz, 1H), 1.52—1.36(m, 2H), 1.28(d, J=6.2 Hz, 3H), 0.93(t, J=7.5 Hz, 3H) | 159.47, 156.57, 145.30, 145.04, 144.80, 136.00, 126.65, 121.92, 120.10, 119.18, 114.71, 110.72, 74.42, 38.82, 19.88, 18.82, 14.17, 10.04 |
16 | 9.39(s, 1H), 8.82(d, J=2.5 Hz, 1H), 8.78(d, J=2.5 Hz, 1H), 7.69(d, J=7.8 Hz, 1H), 7.16(t, J=8.2 Hz, 1H), 6.73(d, J=7.8 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 2.22(d, J=4.7 Hz, 3H), 1.80—1.63(m, 2H), 1.59(ddq, J=14.6, 10.5, 5.4 Hz, 1H), 1.43(tq, J=12.1, 6.6, 6.2 Hz, 1H), 1.40—1.32(m, 2H), 1.34—1.23(m, 3H), 0.91(dt, J=18.6, 7.0 Hz, 3H) | 159.42, 156.56, 145.33, 145.03, 144.74, 136.00, 126.67, 119.10, 114.68, 110.72, 74.70, 36.35, 27.81, 22.78, 19.92, 18.72, 14.27, 10.06, 9.58 |
Table 2 1H NMR and 13C NMR data of compounds 1—16
Compd. | 1H NMR(600 MHz, CDCl3), δ | 13C NMR(151 MHz, CDCl3), δ |
---|---|---|
1 | 9.87(s, 1H), 8.56(d, J=2.5 Hz, 1H), 8.35(d, J=2.5 Hz, 1H), 7.72(d, J=8.0 Hz, 1H), 7.14(t, J=8.2 Hz, 1H), 6.64(d, J=8.2 Hz, 1H), 3.77(s, 3H), 3.00(s, 3H), 2.18(s, 3H) | 162.22, 157.82, 156.04, 146.17, 142.64, 139.97, 136.52, 126.66, 117.36, 114.57, 107.13, 55.72, 24.05, 9.79 |
2 | 9.90(s, 1H), 8.63(d, J=2.5 Hz, 1H), 8.42(d, J=2.2 Hz, 1H), 7.74(d, J=8.1 Hz, 1H), 7.17(t, J=8.3 Hz, 1H), 6.69(d, J=8.3 Hz, 1H), 4.03(q, J=6.9 Hz, 2H), 3.04(s, 3H), 2.23(s, 3H), 1.82(s, 1H), 1.41(t, J=7.0 Hz, 3H) | 162.29, 157.28, 156.17, 146.17, 142.80, 140.00, 136.52, 126.65, 117.77, 114.57, 108.43, 64.10, 24.08, 15.04, 9.89 |
3 | 9.86(s, 1H), 8.56(d, J=2.5 Hz, 1H), 8.35(d, J=2.5 Hz, 1H), 7.71(d, J=8.2 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.2 Hz, 1H), 4.47(hept, J=6.1 Hz, 1H), 3.00(s, 3H), 2.18(s, 3H), 1.29(d, J=6.2 Hz, 6H) | 162.18, 156.26, 156.03, 146.15, 142.70, 139.97, 136.73, 126.51, 118.80, 114.48, 110.50, 70.85, 24.06, 22.32, 10.09 |
4 | 9.87(s, 1H), 8.57(d, J=2.6 Hz, 1H), 8.36(d, J=2.4 Hz, 1H), 7.70(d, J=8.2 Hz, 1H), 7.12(t, J=8.1 Hz, 1H), 6.67(d, J=8.3 Hz, 1H), 4.26(h, J=6.1 Hz, 1H), 3.01(s, 3H), 2.20(s, 3H), 1.72(dp, J=14.3, 7.2 Hz, 1H), 1.61(dq, J=13.8, 7.0 Hz, 1H), 1.25(d, J=6.2 Hz, 3H), 0.95(t, J=7.6 Hz, 3H) | 162.20, 156.47, 156.05, 146.15, 142.73, 139.98, 136.70, 126.51, 118.72, 114.37, 110.18, 75.69, 29.36, 24.06, 19.44, 10.06, 9.85 |
5 | 9.89(s, 1H), 8.61(d, J=2.6 Hz, 1H), 8.40(d, J=2.5 Hz, 1H), 7.72(d, J=8.1 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.03(s, 3H), 2.21(s, 3H), 1.78—1.68(m, 1H), 1.59—1.50(m, 1H), 1.52—1.43(m, 1H), 1.45—1.35(m, 1H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.3 Hz, 3H) | 162.24, 156.52, 156.13, 146.16, 142.79, 139.99, 136.69, 126.54, 118.78, 114.40, 110.18, 74.36, 38.86, 24.09, 19.96, 18.85, 14.21, 10.10 |
6 | 9.89(s, 1H), 8.61(d, J=2.6 Hz, 1H), 8.40(d, J=2.5 Hz, 1H), 7.72(d, J=8.5 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.04(s, 3H), 2.21(s, 3H), 1.78—1.69(m, 1H), 1.59—1.35(m, 3H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.4 Hz, 3H) | 162.24, 156.52, 156.13, 146.16, 142.79, 139.99, 136.69, 126.54, 118.79, 114.41, 110.18, 74.37, 38.86, 24.09, 19.96, 18.85, 14.21, 10.11 |
7 | 9.88(s, 1H), 8.58(s, 1H), 8.37(t, J=3.2 Hz, 1H), 7.71(d, J=7.7 Hz, 1H), 7.13(t, J=8.2 Hz, 1H), 6.68(d, J=8.3 Hz, 1H), 4.34(q, J=6.2 Hz, 1H), 3.02(s, 3H), 2.20(s, 3H), 1.72(ddd, J=16.2, 8.7, 5.0 Hz, 1H), 1.53(dq, J=14.5, 5.3 Hz, 1H), 1.45(t, J=6.5 Hz, 1H), 1.43—1.35(m, 1H), 1.26(d, J=6.1 Hz, 3H), 0.91(t, J=7.2 Hz, 3H) | 162.21, 156.50, 156.07, 146.14, 142.75, 139.98, 136.70, 126.52, 118.73, 114.37, 110.14, 74.33, 38.85, 24.06, 19.94, 18.84, 14.20, 10.09 |
8 | 9.90(s, 1H), 8.64(d, J=2.4 Hz, 1H), 8.43(d, J=2.4 Hz, 1H), 7.72(t, J=8.8 Hz, 1H), 7.17(t, J=8.2 Hz, 1H), 6.71(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 3.05(s, 3H), 2.23(d, J=3.2 Hz, 3H), 1.80—1.63(m, 2H), 1.58(ddt, J=14.7, 10.8, 5.2 Hz, 1H), 1.44(ddd, J=16.4, 8.7, 4.2 Hz, 1H), 1.41—1.31(m, 2H), 1.28(d, J=6.1 Hz, 3H), 0.91(dt, J=18.3, 7.4 Hz, 3H) | 162.26, 156.54, 156.20, 146.17, 142.85, 139.99, 136.68, 126.53, 118.83, 114.43, 110.23, 74.67, 36.40, 24.11, 19.99, 18.74, 14.29, 10.12, 9.63 |
9 | 9.67(s, 1H), 9.43(s, 1H), 8.69(d, J=2.6 Hz, 1H), 8.50(d, J=2.4 Hz, 1H), 7.73(d, J=8.1 Hz, 1H), 7.11(t, J=8.2 Hz, 1H), 6.66(d, J=8.3 Hz, 1H), 4.32(h, J=6.1 Hz, 1H), 2.19(s, 3H), 1.74—1.65(m, 1H), 1.52(ddd, J=14.3, 10.6, 5.5 Hz, 1H), 1.48—1.32(m, 2H), 1.24(d, J=6.2 Hz, 3H), 0.89(t, J=7.2 Hz, 3H) | 160.63, 156.48, 147.52, 144.75, 144.62, 142.55, 136.31, 126.62, 118.55, 114.29, 110.28, 74.33, 38.82, 19.91, 18.82, 14.19, 9.97 |
10 | 9.69(s, 1H), 9.46(s, 1H), 8.74(d, J=2.6 Hz, 1H), 8.54(s, 1H), 7.76(t, J=7.6 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.69(d, J=8.0 Hz, 1H), 4.33(h, J=6.0 Hz, 1H), 2.23(d, J=4.4 Hz, 3H), 1.78—1.61(m, 2H), 1.56(ddt, J=14.6, 10.4, 5.0 Hz, 1H), 1.42(td, J=11.0, 10.5, 5.5 Hz, 1H), 1.40—1.24(m, 5H), 0.88(t, J=6.9 Hz, 3H) | 160.66, 156.50, 147.54, 144.81, 144.70, 142.55, 136.30, 126.66, 118.57, 114.31, 110.34, 74.65, 36.36, 19.96, 18.72, 14.30, 9.99, 9.61 |
11 | 9.64(s, 1H), 9.34(s, 1H), 8.41(s, 1H), 7.78(d, J=8.0 Hz, 1H), 7.16(t, J=8.2 Hz, 1H), 6.70(d, J=8.3 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 2.64(s, 3H), 2.22(s, 3H), 1.78—1.69(m, 1H), 1.59—1.51(m, 1H), 1.51—1.35(m, 2H), 1.27(d, J=6.1 Hz, 3H), 0.92(t, J=7.3 Hz, 3H) | 161.01, 157.41, 156.50, 143.66, 142.32, 142.14, 136.45, 126.64, 118.46, 114.27, 110.22, 74.40, 38.85, 21.93, 19.95, 18.85, 14.20, 9.97 |
12 | 9.63(s, 1H), 9.32(s, 1H), 8.39(s, 1H), 7.76(t, J=7.7 Hz, 1H), 7.14(t, J=8.2 Hz, 1H), 6.68(d, J=7.9 Hz, 1H), 4.33(h, J=6.0 Hz, 1H), 2.62(s, 3H), 2.21(s, 2H), 1.78—1.61(m, 2H), 1.56(dp, J=15.0, 5.1 Hz, 1H), 1.42(td, J=11.3, 10.3, 5.9 Hz, 1H), 1.40—1.28(m, 3H), 1.26(d, J=6.0 Hz, 3H), 0.88(q, J=6.9, 5.9 Hz, 3H) | 160.98, 157.40, 156.48, 143.63, 142.31, 142.12, 136.46, 126.62, 118.42, 114.24, 110.20, 74.64, 36.37, 21.90, 19.96, 18.72, 14.29, 9.97 |
Compd. | 1H NMR(600 MHz, CDCl3), δ | 13C NMR(151 MHz, CDCl3), δ |
13 | 9.73(s, 1H), 9.23(s, 1H), 8.58(s, 1H), 7.74(d, J=8.2 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.2 Hz, 1H), 4.33(h, J=6.1 Hz, 1H), 2.59(s, 3H), 2.20(s, 3H), 1.75—1.64(m, 1H), 1.57—1.49(m, 1H), 1.49—1.33(m, 2H), 1.25(d, J=6.1 Hz, 3H), 0.90(t, J=7.5 Hz, 3H) | 160.84, 156.49, 152.09, 147.48, 143.62, 141.37, 136.41, 126.60, 118.51, 114.23, 110.25, 74.38, 38.83, 21.54, 19.93, 18.82, 14.19, 9.91 |
14 | 9.74(s, 1H), 9.23(s, 1H), 8.59(s, 1H), 7.74(t, J=7.9 Hz, 1H), 7.12(t, J=8.2 Hz, 1H), 6.67(d, J=8.3 Hz, 1H), 4.31(h, J=6.1 Hz, 1H), 2.60(s, 3H), 2.21(d, J=5.6 Hz, 3H), 1.77—1.60(m, 2H), 1.56(ddt, J=14.6, 10.4, 5.1 Hz, 1H), 1.45—1.36(m, 1H), 1.38—1.24(m, 5H), 0.91—0.84(m, 3H) | 160.85, 156.49, 152.09, 147.48, 143.63, 141.38, 136.41, 126.61, 118.52, 114.23, 110.26, 74.64, 36.36, 21.55, 19.95, 18.71, 14.29, 9.92, 9.59 |
15 | 9.38(s, 1H), 8.79(s, 1H), 8.76(s, 1H), 7.67(d, J=8.2 Hz, 1H), 7.15(t, J=8.2 Hz, 1H), 6.72(d, J=8.3 Hz, 1H), 4.36(h, J=6.1 Hz, 1H), 2.21(s, 3H), 1.74(ddt, J=15.8, 11.5, 5.7 Hz, 1H), 1.56(ddt, J=14.4, 10.8, 5.6 Hz, 1H), 1.52—1.36(m, 2H), 1.28(d, J=6.2 Hz, 3H), 0.93(t, J=7.5 Hz, 3H) | 159.47, 156.57, 145.30, 145.04, 144.80, 136.00, 126.65, 121.92, 120.10, 119.18, 114.71, 110.72, 74.42, 38.82, 19.88, 18.82, 14.17, 10.04 |
16 | 9.39(s, 1H), 8.82(d, J=2.5 Hz, 1H), 8.78(d, J=2.5 Hz, 1H), 7.69(d, J=7.8 Hz, 1H), 7.16(t, J=8.2 Hz, 1H), 6.73(d, J=7.8 Hz, 1H), 4.35(h, J=6.1 Hz, 1H), 2.22(d, J=4.7 Hz, 3H), 1.80—1.63(m, 2H), 1.59(ddq, J=14.6, 10.5, 5.4 Hz, 1H), 1.43(tq, J=12.1, 6.6, 6.2 Hz, 1H), 1.40—1.32(m, 2H), 1.34—1.23(m, 3H), 0.91(dt, J=18.6, 7.0 Hz, 3H) | 159.42, 156.56, 145.33, 145.03, 144.74, 136.00, 126.67, 119.10, 114.68, 110.72, 74.70, 36.35, 27.81, 22.78, 19.92, 18.72, 14.27, 10.06, 9.58 |
Compd. | Antifungal effect(%) | |||||
---|---|---|---|---|---|---|
400 mg/L | 100 mg/L | 25 mg/L | 6.25 mg/L | 1.56 mg/L | 0.04 mg/L | |
1 | 100 | 100 | 100 | 50 | — | — |
2 | 100 | 100 | 100 | 40 | — | — |
3 | 100 | 100 | 80 | 60 | — | — |
4 | 100 | 100 | 100 | 100 | 70 | — |
5 | 100 | 100 | 100 | 100 | 50 | — |
6 | 100 | 100 | 100 | 90 | 20 | — |
Compd. | Antifungal effect(%) | |||||
400 mg/L | 100 mg/L | 25 mg/L | 6.25 mg/L | 1.56 mg/L | 0.04 mg/L | |
7 | 100 | 100 | 100 | 100 | 50 | — |
8 | 100 | 100 | 100 | 100 | 70 | — |
9 | 70 | — | — | — | — | — |
10 | 40 | — | — | — | — | — |
11 | 100 | 0 | 0 | 0 | — | — |
12 | 0 | — | — | — | — | — |
13 | 100 | 10 | 0 | 0 | — | — |
14 | 0 | — | — | — | — | — |
15 | 100 | 100 | 100 | 100 | 90 | 50 |
16 | 100 | 100 | 100 | 100 | 100 | 70 |
Pyraziflumid | 100 | 100 | 100 | 95 | 80 | 20 |
Table 3 In vivo antifungal effects(%) against corn rust(Puccinia sorghi Schw.) of all target compounds*
Compd. | Antifungal effect(%) | |||||
---|---|---|---|---|---|---|
400 mg/L | 100 mg/L | 25 mg/L | 6.25 mg/L | 1.56 mg/L | 0.04 mg/L | |
1 | 100 | 100 | 100 | 50 | — | — |
2 | 100 | 100 | 100 | 40 | — | — |
3 | 100 | 100 | 80 | 60 | — | — |
4 | 100 | 100 | 100 | 100 | 70 | — |
5 | 100 | 100 | 100 | 100 | 50 | — |
6 | 100 | 100 | 100 | 90 | 20 | — |
Compd. | Antifungal effect(%) | |||||
400 mg/L | 100 mg/L | 25 mg/L | 6.25 mg/L | 1.56 mg/L | 0.04 mg/L | |
7 | 100 | 100 | 100 | 100 | 50 | — |
8 | 100 | 100 | 100 | 100 | 70 | — |
9 | 70 | — | — | — | — | — |
10 | 40 | — | — | — | — | — |
11 | 100 | 0 | 0 | 0 | — | — |
12 | 0 | — | — | — | — | — |
13 | 100 | 10 | 0 | 0 | — | — |
14 | 0 | — | — | — | — | — |
15 | 100 | 100 | 100 | 100 | 90 | 50 |
16 | 100 | 100 | 100 | 100 | 100 | 70 |
Pyraziflumid | 100 | 100 | 100 | 95 | 80 | 20 |
Fig.1 The molecular 3D space superimposition diagram(A), hydrogen bond donor diagram(B) and hydrogen bond acceptor diagram(C) of pyraziflumid, wu jun xian an and compound 16
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