CN116806827A - 倍半萜laurene及其衍生物在防治植物病毒病菌病中的应用 - Google Patents

倍半萜laurene及其衍生物在防治植物病毒病菌病中的应用 Download PDF

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CN116806827A
CN116806827A CN202210275146.1A CN202210275146A CN116806827A CN 116806827 A CN116806827 A CN 116806827A CN 202210275146 A CN202210275146 A CN 202210275146A CN 116806827 A CN116806827 A CN 116806827A
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王兹稳
丁鑫
徐钰镔
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Abstract

本发明涉及一种倍半萜laurene及其衍生物在治疗植物病毒病菌病中的应用,本发明首次发现倍半萜laurene及其衍生物I‑1~I‑19表现出很好的抗植物病毒病菌活性,能很好地抑制烟草花叶病毒(TMV)和黄瓜枯萎,花生褐斑,苹果轮纹,小麦纹枯,番茄早疫,水稻稻瘟,辣椒疫霉,油菜菌核8种植物病菌。

Description

倍半萜laurene及其衍生物在防治植物病毒病菌病中的应用
技术领域
本发明涉及倍半萜laurene及其衍生物在治疗植物病毒和病菌病中的应用,属于农业防护技术领域。
背景技术
Laurene(反应式一)是一种含有1、2、3取代的环戊烯结构的倍半萜,主要存在于海洋红藻中,1965年日本北海道大学的Irie课题组(Tetrahedron Lett.1965,6,3619-3624.)首次从海洋红藻Laurencia glandulifera代谢物中分离出laurene。2012年,中国科学院烟台海岸带研究所的Ji课题组(Fitoterapia.2012,83,518-522.)从海洋红藻Laurenciaokamurai中分离出倍半萜laurene。
1973年,加利福尼亚大学的McMurry课题组以环己酮为原料,经11步反应实现了天然产物laurene的全合成(Tetrahedron.1974,30,2027-2032.),总收率为5.54%(反应式一),反应路线较长,总收率较低。1989年,印度班加罗尔科学研究所的Srikrishna课题组以1-(对甲苯基)丙-1-酮为起始原料通过自由基环化,经6步反应完成了天然产物(±)-laurene的全合成(Tetrahedron Lett.1989,30,3561-3562.),总收率为15.3%(反应式二)。1995年,康涅狄格大学的Bailey课题组通过有机锂的5-exo环化实现了五元环的构建,并通过该方案实现了天然产物laurene和epilaurene的合成(J.Org.Chem.1995,60,6511-6514.),反应经五步完成,总收率为38.7%(反应式三)。
倍半萜类化合物具有广泛的生物活性,laurene类化合物的详细生物学特性还有待研究,但其他类似的倍半萜类化合物,如铜烯(cuparenes)和赫伯烯(herbertenes)已被发现是有效的抗真菌、抗生素、神经营养和抗脂质过氧化药物。截至目前,还没有关于倍半萜防治植物病毒病菌病方面的报道。
发明内容
本发明提供倍半萜衍生物在防治植物病毒病菌病中的应用。本专利的倍半萜衍生物具有很好的抗植物病毒和病菌活性。
本发明的倍半萜衍生物为I-1~I-19。
相比于现有技术,本发明首次发现倍半萜衍生物I-1~I-19表现出很好的抗植物病毒和病菌活性,能很好地抑制烟草花叶病毒(TMV)和黄瓜枯萎,花生褐斑,苹果轮纹,小麦纹枯,番茄早疫,水稻稻瘟,辣椒疫霉,油菜菌核8种植物病菌。
具体实施方式
本发明中,倍半萜衍生物I-1、I-2、I-11、I-22按照下述参考文献制备:Tetrahedron Lett. 2019,60,150941-150941。I-3按照下述参考文献制备:Synlett.2017,28,2829-2832。I-4按照下述参考文献制备:Org.Biomol.Chem.2014,12,5883-5890。I-5按照下述参考文献制备: Tetrahedron Lett.1997,38,4069-4070。I-6、I-7按照下述参考文献制备:J Chem.Soc.,Perkin Trans.11997,21,3127-3128。I-8、I-9按照下述参考文献制备:Tetrahedron Asymmetry1993,4, 27-30。I-10、I-19按照下述参考文献制备:Synthesis1998,5,771-774。I-13~I-15按照下述参考文献制备:Tetrahedron 2012,68,7598-7604。I-16~I-18按照下述参考文献制备:Angew.Chem. 2014,126,5658-5661。
实施例1:倍半萜衍生物I-1~I-19的实验数据
I-1:无色油状物。1H NMR(400MHz,CDCl3)(for 2=1 inseparable mixture ofdiastereomers)δ7.31-7.26(m,2H,ArH),7.18(d,J=8.0Hz,2H,ArH),7.13(d,J=8.0Hz,1H,ArH),7.08- 7.04(m,1H,ArH),2.59(dd,J=6.9,0.8Hz,CHCH3),2.49-2.39(m,3H,COCH2CH2),2.34(s, 3H,ArCH3),2.32(s,1.5H,ArCH3),2.16-2.05(m,3H,COCH2CH2),1.40(s,1.5H,CCH3),1.19 (s,3H,CCH3),1.03(d,J=7.0Hz,3H,CHCH3),0.82(d,J=7.3Hz,1.5H,CHCH3).13C NMR (100MHz,CDCl3)δ220.2,144.4,135.9,129.7,129.2,129.1,126.6,125.4,120.4,115.4,55.3,54.4, 46.4,45.8,36.4,35.2,35.1,32.2,29.9,20.9,20.6,11.9,8.7.HRMS(EI):Cacld for C14H18O[M]+ 202.1352,found 202.1358.
I-2:黄色液体。1H NMR(400MHz,CDCl3)(for 3∶1 inseparable mixture ofdiastereomers)δ 7.07(d,J=7.7Hz,1.35H,ArH),6.76(m,1.7H,ArH),6.68(s,1H,ArH),3.83(s,1H,OCH3),3.77 (s,3H,OCH3),3.04(d,J=7.0Hz,0.3H,CHCH3),2.71(q,J=7.5Hz,1H,CHCH3),2.40(m,3H, 2COCH2CH2+1ArCH3),2.34(s,4H,3ArCH3+1COCH2CH2),2.29(q,J=6.0Hz,1H, COCH2CH2),2.13-2.06(m,1H,COCH2CH2),1.33(s,3H,CCH3),1.22(s,1H,CCH3),1.03(d,J =7.0Hz,1H,CHCH3),0.69(d,J=7.5Hz,3H,CHCH3).13C NMR(100MHz,CDCl3)δ223.3, 221.3,158.1,157.0,137.7,137.5,131.8,131.6,126.9,126.88,121.2,121.0,112.7,111.6,55.0, 54.7,53.5,51.9,45.7,45.5,35.1,34.7,32.7,32.2,27.1,21.3,19.9,13.1,9.4.HRMS(EI):Cacld for C15H20O2[M]+232.1458,found 232.1462.
I-3:黄色液体。1H NMR(400MHz,CDCl3)δ7.20-7.11(m,4H,ArH),2.77(td,J=12.0,5.6Hz,1H,CHCH3),2.58-2.47(m,1H,CHAr),2.35(s,3H,ArCH3),2.34-2.16(m,3H,CH2CH2CO),2.01-1.85(m,1H,CH2CH2CO),1.03(d,J=6.9Hz,3H,CHCH3).13C NMR(100 MHz,CDCl3)δ220.0,139.3,136.5,129.4,127.0,51.4,50.6,37.8,29.7,21.1,12.2.HRMS(EI):Cacld for C13H16O[M]+188.1196,found 188.1199.
I-4:白色固体,熔点:76-77℃。1H NMR(400MHz,CDCl3)δ7.21-7.12(m,4H,ArH),2.63(d,J=17.7Hz,1H,COCH2C),2.45(d,J=11.2Hz,1H,COCH2C),2.43-2.34(m,2H,CH2CH2CO),2.33(s,3H,ArCH3),2.30-2.21(m,2H,CH2CH2CO),1.37(s,3H,CCH3).13C NMR(100MHz,CDCl3)δ218.8,145.58,135.9,129.3,125.4,52.4,43.5,36.6,35.9,29.5,20.9.HRMS (EI):Cacld for C13H16O[M]+188.1196,found 188.1202.
I-5:黄色液体。1H NMR(400MHz,CDCl3)δ7.31(d,J=8.3Hz,2H,ArH),7.19(d,J=8.0 Hz,2H,ArH),2.76-2.64(m,1H,CH2CH2CO),2.56-2.44(m,2H,CH2CH2CO),2.37(s,3H,ArCH3),1.94(ddd,J=12.6,8.8,1.9Hz,1H,CH2CH2CO),1.29(s,3H,CCH3),1.20(s,3H,CCH3),0.64(s,3H,ArCCH3).13C NMR(100MHz,CDCl3)δ222.6,142.0,135.9,129.0,126.4,53.2,48.4, 33.8,29.7,25.4,22.2,20.9,18.5.HRMS(EI):Cacld for C15H20O[M]+216.1509,found 216.1513.
I-6:无色油状液体。1H NMR(400MHz,CDCl3)(for 2∶1 inseparable mixture ofdiastereomers)δ7.35-7.30(m,2H,ArH),7.20-7.15(m,2H,ArH),7.14(s,1H,ArH),4.96(dd, J=3.0,1.9Hz,1H,CCH2),4.93-4.89(m,1H,CCH2),4.87(d,J=2.1Hz,1H,CCH2),2.74(dd,J =6.1,2.8Hz,1H,CHCH3),2.61(d,J=7.1Hz,0.5H,CHCH3),2.58-2.54(m,2H,CH2CCH2CH2),2.52-2.43(m,1H,CH2CCH2CH2),2.36(d,J=6.3Hz,4.5H,ArCH3),2.27(dt,J =12.6,9.0Hz,0.5H,CH2CCH2CH2),1.98(dt,J=20.9,10.4Hz,1H,CH2CCH2CH2),1.87-1.82 (m,0.5H,CH2CCH2CH2),1.82-1.74(m,1H,CH2CCH2CH2),1.31(s,1.5H,CCH3),1.12(s,3H, CCH3),0.96(d,J=6.7Hz,3H,CHCH3),0.74(d,J=7.1Hz,1.5H,CHCH3).13C NMR(100MHz, CDCl3)δ157.5,156.6,145.4,144.5,135.1,134.8,128.9,128.7,126.9,125.9,105.6,105.1,50.5,49.0,48.6,47.8,40.0,34.7,29.7,29.2,20.9,19.0,17.3,11.8.HRMS(EI):Cacld forC15H20[M]+ 200.1560,found 200.1563.
I-7:黄色液体。1H NMR(400MHz,DMSO-d6)δ6.90(d,J=7.8Hz,1H,ArH),6.70(s,1H,ArH),6.61(dd,J=7.7,0.7Hz,1H,ArH),4.87(s,1H,CCH2),4.77(d,J=1.2Hz,1H,CCH2),3.70(s,3H,OCH3),2.92-2.82(m,1H,CHCH3),2.33(td,J=9.8,2.3Hz,2H,CH2CCH2CH2), 2.20(s,3H,ArCH3),2.08(ddd,J=26.5,12.8,7.6Hz,1H,CH2CCH2CH2),1.72-1.64(m,1H,CH2CCH2CH2),1.03(s,3H,CCH3),0.47(t,J=9.6Hz,3H,CHCH3).13C NMR(100MHz, DMSO-d6)δ158.3,157.4,136.8,132.8,127.7,121.3,112.4,106.8,55.5,48.7,48.4,34.6,28.0,26.3,21.3,20.0.HRMS(EI):Cacld for C16H22O[M]+230.1666,found 230.1673.
I-8:无色油状液体。1H NMR(400MHz,CDCl3)δ7.11(dt,J=15.1,5.2Hz,4H,ArH),2.31 (s,3H,ArCH3),2.30-2.25(m,2H,CH3CCH2CH2),1.91(ddd,J=14.9,7.8,6.5Hz,2H,CH3CCH2CH2),1.72-1.70(m,3H,CCH3),1.39(s,3H,CCH3),1.37(dt,J=3.0,1.0Hz,3H,CCH3).13C NMR(100MHz,CDCl3)δ146.3,137.9,134.8,131.9,128.8,126.2,54.6,41.6,35.9, 24.3,21.0,14.4,10.4.HRMS(EI):Cacld for C15H20[M]+200.1560,found 200.1567.
I-9:白色油状固体,熔点:55-57℃。1H NMR(400MHz,CDCl3)δ6.89(d,J=7.7Hz,1H,ArH),6.68(s,1H,ArH),6.65(d,J=7.8Hz,1H,ArH),3.77(s,3H,OCH3),2.31(s,3H,ArCH3),2.28-2.20(m,1H,CH3CCH2CH2),2.16(d,J=7.0Hz,2H,CH3CCH2CH2),1.76-1.70(m,1H,CH3CCH2CH2),1.69(s,3H,CCH3),1.49(d,J=8.3Hz,3H,CCH3),1.43(s,3H,CCH3).13C NMR(100MHz,CDCl3)δ158.4,136.8,133.3,131.7,127.8,120.5,112.7,55.2,53.9,38.5,35.9,25.3, 21.3,14.4,11.1.HRMS(EI):Cacld for C15H20[M]+200.1560,found 200.1567.
I-10:黄色油状液体。1H NMR(400MHz,DMSO-d6)(for 3∶0.7 inseparable mixtureof diastereomers)δ9.11(s,1H,OH),8.91(s,0.3H,OH),6.90(t,J=6.0Hz,1H,ArH),6.73(d,J= 7.8Hz,0.3H,ArH),6.59(d,J=1.0Hz,1H,ArH),6.57(d,J=1.2Hz,0.3H,ArH),6.53(dd,J= 7.7,0.9Hz,1H,ArH),6.44(dd,J=4.9,0.9Hz,0.3H,ArH),4.94(s,1H,CH2),4.83(s,1H,CH2), 3.02(q,J=7.1Hz,1H,CHCH3),2.59(d,J=7.4Hz,0.2H,CHCH3),2.39(dd,J=9.8,7.8Hz,2H, CH2CH2CCH2),2.31-2.23(m,0.5H,CH2CH2CCH2),2.18(s,3H,ArCH3),2.16(s,1H,ArCH3), 1.90-1.68(m,2H,CH2CH2CCH2),1.52(d,J=6.8Hz,0.5H,CH2CH2CCH2),1.33(s,0.7H, CCH3),1.13(s,3H,CCH3),0.67(d,J=6.8Hz,0.7H,CHCH3),0.62(d,J=7.2Hz,3H,CHCH3). 13C NMR(100MHz,DMSO-d6)δ158.6,156.0,155.3,137.3,136.2,131.1,130.4,127.9,125.2, 121.0,120.0,119.4,117.2,116.5,115.6,106.6,85.1,53.7,48.6,48.2,34.5,28.1,26.0,21.0,20.9, 20.1,14.7,11.5,7.8.HRMS(ESI):Cacld for C15H19O[M-H]-215.1441,found 215.1446.
I-11:黄色油状液体。1H NMR(400MHz,DMSO-d6)(for 3∶2∶1 inseparable mixtureof diastereomers)δ7.22-7.19(m,2H,ArH),7.15(d,J=8.2Hz,1H,ArH),7.09-7.06(m,4H,ArH),4.68(d,J=5.6Hz,0.3H,OH),4.65(d,J=5.0Hz,0.5H,OH),4.47(d,J=4.0Hz,1H,OH), 4.14-4.07(m,1H,CHOH),3.82-3.72(m,0.3H,CHOH),3.60-3.50(m,0.5H,CHOH),2.25(s, 6H,ArCH3),2.18-1.92(m,4H,CH3CHCHCH2CH2),1.89-1.77(m,3H,CH3CHCHCH2CH2),1.70-1.52(m,3H,CH3CHCHCH2CH2),1.35(s,1.5H,CCH3),1.24(s,3H,CCH3),1.19(s,1H,CCH3),0.83(d,J=7.2Hz,3H,CHCH3),0.53(d,J=7.0Hz,1.5H,CHCH3),0.47(d,J=7.2Hz,1H,CHCH3).13C NMR(100MHz,DMSO-d6)δ148.1,147.2,146.1,144.4,134.5,134.4,134.2,129.1,129.0,128.8,128.6,127.4,127.3,125.9,125.8,78.2,74.2,73.4,52.7,52.4,49.5,48.648.4,47.3,47.1,46.6,36.8,34.5,34.1,32.9,32.7,31.4,31.2,29.8,23.2,22.0,20.9,20.88,14.5,12.5, 11.4,9.8.HRMS(EI):Cacld for C14H20O[M]+204.1509,found 204.1516.
I-12:无色液体。1H NMR(400MHz,CDCl3)δ7.19-7.15(m,2H,ArH),7.11(d,J=8.0Hz, 2H,ArH),5.50(d,J=1.5Hz,1H,CHCH2),2.32(s,3H,ArCH3),2.31-2.28(m,2H,CHCH2), 2.09-1.94(m,2H,CH2C),1.49(dd,J=3.7,2.1Hz,3H,CHCCH3),1.43(s,3H,ArCCH3).13C NMR(100MHz,CDCl3)δ146.8,145.5,134.9,128.8,126.2,125.2,53.3,43.3,29.9,24.1,20.9, 13.1.HRMS(EI):Cacld for C14H18[M]+186.1404,found 186.1407.
I-13:黄色油状液体。1H NMR(400MHz,CDCl3)(for 3∶1 inseparable mixture ofdiastereomers)δ6.91(d,J=7.6Hz,1.4H,ArH),6.71(d,J=8.1Hz,0.4H,ArH),6.64(dd,J=6.9, 0.6Hz,1H,ArH),6.53(s,1H,ArH),6.51(s,0.3H,ArH),2.28(s,4H,ArCH3),1.89-1.85(m, 1.4H,CH2CH2CH),1.80-1.71(m,1.3H,CH2CH2CH),1.68-1.51(m,2.4H,CH2CH2CH),1.32(s, 3H,CCH3),1.31(s,1H,CCH3),1.29(s,3H,CCH3),1.27(s,1H,CCH3),1.22-1.13(m,1H, CHCH3),1.11(d,J=6.8Hz,3H,CHCH3),1.00-0.97(m,1H,CHCH3).13C NMR(100MHz,CDCl3)δ158.9,137.9,133.4,131.0,127.1,122.8,122.6,120.9,120.7,111.7,109.8,109.38,101.0, 98.9,55.4,54.1,46.2,42.6,41.2,38.5,31.2,30.4,24.1,23.6,21.5,20.1,17.6,15.4,13.2.HRMS (EI):Cacld for C15H20O[M]+216.1509,found 216.1513.
I-14:黄色油状液体。1H NMR(400MHz,CDCl3)δ7.17(s,1H,ArH),6.61(s,1H,ArH),2.33(s,3H,ArCH3),1.89(ddd,J=16.0,8.8,4.1Hz,1H,CH2CH2CH),1.82-1.72(m,1H,CH2CH2CH),1.68-1.58(m,2H,CH2CH2CH),1.30(s,3H,CCH3),1.29(s,3H,CCH3),1.20- 1.15(m,1H,CHCH3),1.13(d,J=6.7Hz,3H,CHCH3).13C NMR(100MHz,CDCl3)δ158.2, 136.9,136.2,126.5,113.7,110.9,99.8,54.3,46.0,42.6,31.2,,23.4,23.2,19.9,13.1.HRMS(EI): Cacld for C15H19BrO[M]+294.0614,found 294.0618.
I-15:无色油状液体。1H NMR(400MHz,CDCl3)(for 6∶1 inseparable mixture ofdiastereomers)δ7.20(s,0.16H,ArH),7.11(s,1H,ArH),2.51(s,0.5H,ArCH3),2.49(s,3H,ArCH3),1.86(ddd,J=9.7,6.3,2.7Hz,1.4H,CH2CH2CH),1.77(td,J=12.6,6.1Hz,1H,CH2CH2CH),1.68-1.56(m,2.3H,CH2CH2CH),1.47(s,0.5H,CCH3),1.34(s,3.5H,CCH3),1.32(s,3H,CCH3),1.20-1.06(m,4H,CHCH3),0.75(d,J=6.8Hz,0.5H,CHCH3).13C NMR(100 MHz,CDCl3)δ156.0,149.7,136.0,135.8,130.7,127.3,125.4,114.2,114.0,112.7,104.9,100.3, 86.8,55.8,46.2,45.6,42.5,42.0,37.5,31.2,23.7,23.3,23.0,22.8,20.5,20.2,13.2,7.3.HRMS (EI):Cacld for C15H18Br2O[M]+371.9719,found 371.9726.
I-16:黄色油状液体。1H NMR(400MHz,CDCl3)(for 3∶1 inseparable mixture ofdiastereomers)δ7.09(d,J=7.9Hz,0.3H,ArH),6.98(d,J=7.7Hz,1H,ArH),6.68(d,J=8.2Hz, 0.3H,ArH),6.64(d,J=7.0Hz,1H,ArH),6.53(d,J=0.5Hz,1H,ArH),6.23(s,0.3H,ArH),2.28 (s,1H,ArCH3),2.25(s,3H,ArCH3),2.15(dt,J=13.3,9.5Hz,0.3H,OCCH2CH2),2.05(ddd,J= 14.3,9.3,7.3Hz,1H,OCCH2CH2),1.90-1.85(m,1.3H,OCCH2CH2),1.84-1.74(m,1.3H, OCCH2CH2),1.70-1.61(m,1.3H,OCCH2CH2),1.60-1.53(m,0.3H,CHCH3),1.49(q,J=6.8 Hz,1H,CHCH3),1.43(s,1H,OCCH3),1.39(s,3H,OCCH3),1.38(s,1H,CCH3),1.34(s,3H, CCH3),1.29(d,J=14.3Hz,1H,CHCH3),0.77(d,J=6.8Hz,3H,CHCH3).13C NMR(100MHz,CDCl3)δ155.3,153.0,138.4,137.9,137.2,135.8,129.4,127.5,126.7,124.8,120.7,120.6,117.2, 115.8,85.1,53.3,46.7,44.8,42.4,37.8,37.4,36.1,23.8,23.2,21.1,20.9,20.6,14.7,10.1,7.5. HRMS(E1):Cacld for C15H20O[M]+216.1509,found 216.1514.
I-17:黄色油状液体。1H NMR(400MHz,CDCl3)δ7.19(s,1H,ArH),6.59(s,1H,ArH),2.28(s,3H,ArCH3),2.03(ddd,J=14.3,9.2,7.3Hz,1H,OCCH2CH2),1.93-1.85(m,2H,OCCH2CH2),1.83-1.75(m,1H,OCCH2CH2),1.66(ddd,J=11.8,9.4,5.1Hz,1H,OCCH2CH2),1.49-1.46(d,J=6.8Hz,1H,CHCH3),1.39(s,3H,OCCH3),1.32(s,3H,CCH3),0.76(d,J=6.8Hz,3H,CHCH3).13C NMR(100MHz,CDCl3)δ152.4,136.5,130.2,128.5,117.5,114.4,85.5,46.4,44.9,42.2,37.3,23.0,22.5,20.5,7.4.HRMS(EI):Cacld for C15H19BrO[M]+294.0614,found 294.0618.
I-18:白色油状物。1H NMR(400MHz,CDCl3)(for 2∶1 inseparable mixture ofdiastereomers)δ7.22(d,J=5.2Hz,1H,ArH),6.60(s,0.5H,ArH),2.54(s,3H,ArCH3),2.33(s,1.5H,ArCH3), 2.32-2.26(m,0.5H,OCCH2CH2),2.14(dd,J=11.7,5.6Hz,0.5H,OCCH2CH2),2.11-2.04(m, 1H,OCCH2CH2),1.99(s,1.5H,OCCH3),1.95-1.80(m,3H,OCCH2CH2),1.77-1.67(m,1.5H,0.5CHCH3+OCCH2CH2),1.55(s,1.5H,CCH3),1.53(s,1.5H,CHCH3),1.50(s,3H,OCCH3), 1.37(s,3H,CCH3),0.89(d,J=7.4Hz,1H,CHCH3),0.78(d,J=6.8Hz,3H,CHCH3).13C NMR (100MHz,CDCl3)δ156.4,149.7,137.4,135.8,130.7,127.3,126.6,115.0,114.2,112.7,111.3, 102.8,86.8,78.1,54.2,46.2,45.4,42.2,42.0,40.9,37.5,29.6,26.6,24.0,23.7,23.2,22.8,20.5, 19.0,7.3.HRMS(EI):Cacld for C15H18Br2O[M]+371.9719,found 371.9724.
I-19:黄色油状液体。1H NMR(400MHz,DMSO-d6)δ6.97(d,J=7.8Hz,1H,ArH),6.64-6.55(m,1H,ArH),6.45(s,1H,ArH),4.93(t,J=5.8Hz,1H,OH),3.49(d,J=6.0Hz,2H,CH2OH),2.18(s,3H,ArCH3),2.09(dd,J=15.8,9.9Hz,1H,CHCH3),1.78-1.68(m,2H,OCCH2CH2),1.68-1.56(m,2H,OCCH2CH2),1.29(s,3H,CCH3),0.64(d,J=6.8Hz,3H, CCH3).13CNMR(100MHz,DMSO-d6)δ152.2,136.4,127.8,124.9,120.6,115.2,87.2,62.0,44.1,41.8,41.0,32.0,20.4,20.1,7.3.HRMS(EI):Cacld for C15H20O2[M]+232.1458,found 232.1466.
实施例2:抗烟草花叶病毒活性的测定,测定程序如下:
1、病毒提纯及浓度测定:
病毒提纯及浓度测定参照南开大学元素所生测室编制烟草花叶病毒SOP规范执行。病毒粗提液经2次聚乙二醇离心处理后,测定浓度,4℃冷藏备用。
2、化合物溶液配制:
称量后,原药加入DMF溶解,制得1×105μg/mL母液,后用含1‰吐温80水溶液稀释至所需浓度;病毒唑制剂直接兑水稀释。
3、活体保护作用:
选长势均匀一致的3-5叶期珊西烟,全株喷雾施药,每处理3次重复,并设1‰吐温80 水溶液对照。24h后,叶面撒布金刚砂(500目),用毛笔蘸取病毒液,在全叶面沿支脉方向轻擦2次,叶片下方用手掌支撑,病毒浓度10μg/mL,接种后用流水冲洗。3d后记录病斑数,计算防效。
4、活体治疗作用:
选长势均匀一致的3-5叶期珊西烟,用毛笔全叶接种病毒,病毒浓度为10μg/mL,接种后用流水冲洗。叶面收干后,全株喷雾施药,每处理3次重复,并设1‰吐温80水溶液对照。3d后记录病斑数,计算防效。
5、活体钝化作用:
选长势均匀一致的3-5叶期珊西烟,将药剂与等体积的病毒汁液混合钝化30min后,摩擦接种,病毒浓度20μg/mL,接种后即用流水冲洗,重复3次,设1‰0吐温80水溶液对照。 3d后数病斑数,计算结果。
抑制率(%)=[(对照枯斑数-处理枯斑数)/对照枯斑数]×100%
首先在处理剂量500μg/mL条件下进行所有化合物的抗烟草花叶病毒活体钝化活性测试,相对抑制率大于40%的化合物进一步进行处理剂量500μg/mL条件下的活体治疗和活性保护活性测试以及处理剂量100μg/mL条件下的抗烟草花叶病毒活体钝化、活体治疗、活体保护活性测试。阳性对照为商品化抗植物病毒药剂病毒唑。
表1倍半萜laurene衍生物I-1~I-19的抗烟草花叶病毒(TMV)活性测试结果
从表一数据可见,倍半萜laurene衍生物I-1~I-19均表现出不错的抗TMV活性,其中在 500μg/mL情况下,有7种化合物的活性与病毒唑相当,具有极大的开发价值。
实施例3:抗菌活性测试,测定程序如下:
离体杀菌测试,菌体生长速率测定法(平皿法):
将一定量药剂溶解在适量丙酮内,然后用含有200μg/mL乳化剂水溶液稀释至所需浓度,然后各吸取1mL药液注入培养皿内,再分别加入9mL培养基,摇匀后制成50μg/mL的含药平板,以添加1mL灭菌水的平板做空白对照。用直径4mm的打孔器沿菌丝外缘切取菌盘,移至含药平板上。每处理重复三次。将培养皿放在24±1℃恒温培养箱内培养。48小时后调查各处理菌盘扩展直径,求平均值,与空白对照比较计算相对抑菌率。
表2倍半萜laurene衍生物I-1~I-19的离体杀菌活性测试结果:
倍半萜laurene衍生物在测试浓度为50μg/mL的条件下对8种被测试菌都表现出广谱的抑制活性。化合物I-10对水稻稻瘟抑制率到达80%。部分化合物对部分菌株抑制活性优于商品化品种百菌清,具备极大的开发价值。

Claims (2)

1.倍半萜laurene及其衍生物I-1~I-19在防治烟草花叶病毒病中的应用,
2.权利要求1中的倍半萜衍生物I-2~I-19在防治植物病菌病中的应用,其特征在于所述的植物病菌为黄瓜枯萎病菌,花生褐斑病菌,苹果轮纹病菌,小麦纹枯病菌,番茄早疫病菌,水稻稻瘟病菌,辣椒疫霉病菌或油菜菌核病菌。
CN202210275146.1A 2022-03-21 2022-03-21 倍半萜laurene及其衍生物在防治植物病毒病菌病中的应用 Pending CN116806827A (zh)

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