CN116425740A - 一种奎宁腙类衍生物及其制备方法和应用 - Google Patents
一种奎宁腙类衍生物及其制备方法和应用 Download PDFInfo
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- CN116425740A CN116425740A CN202310321979.1A CN202310321979A CN116425740A CN 116425740 A CN116425740 A CN 116425740A CN 202310321979 A CN202310321979 A CN 202310321979A CN 116425740 A CN116425740 A CN 116425740A
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- Prior art keywords
- quinine
- formula
- hydrazone derivative
- compound
- hydrazone
- Prior art date
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- LOUPRKONTZGTKE-WZBLMQSHSA-N Quinine Natural products C([C@H]([C@H](C1)C=C)C2)C[N@@]1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-WZBLMQSHSA-N 0.000 title claims abstract description 91
- 235000001258 Cinchona calisaya Nutrition 0.000 title claims abstract description 76
- LOUPRKONTZGTKE-UHFFFAOYSA-N cinchonine Natural products C1C(C(C2)C=C)CCN2C1C(O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229960000948 quinine Drugs 0.000 title claims abstract description 76
- -1 Quinine hydrazone derivative Chemical class 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 65
- 241000233654 Oomycetes Species 0.000 claims abstract description 21
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 6
- 241000196324 Embryophyta Species 0.000 claims description 18
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 claims description 14
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 12
- 241000233616 Phytophthora capsici Species 0.000 claims description 10
- 125000001424 substituent group Chemical group 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 6
- 125000006274 (C1-C3)alkoxy group Chemical group 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
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- 125000006701 (C1-C7) alkyl group Chemical group 0.000 claims description 4
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- 125000001072 heteroaryl group Chemical group 0.000 claims description 3
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 19
- 244000000004 fungal plant pathogen Species 0.000 abstract description 16
- 239000005807 Metalaxyl Substances 0.000 abstract description 11
- ZQEIXNIJLIKNTD-UHFFFAOYSA-N methyl N-(2,6-dimethylphenyl)-N-(methoxyacetyl)alaninate Chemical compound COCC(=O)N(C(C)C(=O)OC)C1=C(C)C=CC=C1C ZQEIXNIJLIKNTD-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003899 bactericide agent Substances 0.000 abstract description 8
- FFSJPOPLSWBGQY-UHFFFAOYSA-N triazol-4-one Chemical compound O=C1C=NN=N1 FFSJPOPLSWBGQY-UHFFFAOYSA-N 0.000 abstract description 8
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- 238000006243 chemical reaction Methods 0.000 description 39
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 27
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 15
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- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 description 4
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- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 description 4
- 150000002429 hydrazines Chemical class 0.000 description 4
- 239000012074 organic phase Substances 0.000 description 4
- JOVOSQBPPZZESK-UHFFFAOYSA-N phenylhydrazine hydrochloride Chemical compound Cl.NNC1=CC=CC=C1 JOVOSQBPPZZESK-UHFFFAOYSA-N 0.000 description 4
- 229940038531 phenylhydrazine hydrochloride Drugs 0.000 description 4
- 238000010898 silica gel chromatography Methods 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
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- AOSZTAHDEDLTLQ-AZKQZHLXSA-N (1S,2S,4R,8S,9S,11S,12R,13S,19S)-6-[(3-chlorophenyl)methyl]-12,19-difluoro-11-hydroxy-8-(2-hydroxyacetyl)-9,13-dimethyl-6-azapentacyclo[10.8.0.02,9.04,8.013,18]icosa-14,17-dien-16-one Chemical compound C([C@@H]1C[C@H]2[C@H]3[C@]([C@]4(C=CC(=O)C=C4[C@@H](F)C3)C)(F)[C@@H](O)C[C@@]2([C@@]1(C1)C(=O)CO)C)N1CC1=CC=CC(Cl)=C1 AOSZTAHDEDLTLQ-AZKQZHLXSA-N 0.000 description 1
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Abstract
本发明属于植物抗菌剂领域,具体涉及一种奎宁腙类衍生物及其制备方法和应用。该奎宁腙类衍生物其结构通式如式I所示。本发明提供的奎宁腙类衍生物,经抗菌实验证明,对植物病原真菌/卵菌具有显著的抑菌活性,其中部分化合物抑菌活性超过现已上市的抗菌剂三唑酮/甲霜灵,可用于制备植物源杀菌剂。
Description
技术领域
本发明属于植物抗菌剂领域,具体涉及一种奎宁腙类衍生物及其制备方法和应用。
背景技术
奎宁(Quinine),即金鸡纳碱,是茜草科(Rubiaceae)植物金鸡纳树及其同属植物树皮中的主要生物碱,具有广泛的药理作用和生物活性。例如,(1)抗细菌活性表明,奎宁类衍生物具有抑制细菌拓扑异构酶(Type IIA)活性;(2)近期研究表明,奎宁类衍生物具有显著的抗疟原虫活性;(3)奎宁二聚体能可逆地抑制P-糖蛋白介导的紫杉醇抗性,从而达到抑制癌细胞增殖的功效。
奎宁酯类衍生物杀粘虫(Mythimna separate Walker)活性方面的研究已有文献报道,如Che Zhiping等报道了奎宁酯类衍生物的合成及其杀粘虫活性方面的研究(CheZhiping,Yang Jinming,Sun Di,Tian Yuee,Liu Shengming,Lin Xiaomin,Jiang Jia,Chen Genqiang,Combinatorial synthesis of novel 9R-acyloxyquinine derivativesas insecticidal agents,Combinatorial Chemistry&High Throughput Screening,2020,23(2):111-118)。奎宁对豚鼠(Guinea pig)肠系膜动脉平滑肌细胞间缝隙连接通道有影响,其依赖浓度地阻断肠系膜动脉细胞间缝隙连接通道(张治平,司军强,李新芝,李丽,魏丽丽,马克涛,奎宁和甘珀酸对豚鼠肠系膜动脉平滑肌细胞间缝隙连接通道的影响,医药导报,2014,33(3):279-283)。
奎宁生物活性广谱,如杀虫活性、抑菌活性、抗癌活性等,本课题组在前期研究了9R-酰氧基奎宁类衍生物对鳞翅目农业害虫方面的防治效果(CN110759904A),然而奎宁腙类衍生物的合成及其在抗植物病原真菌/卵菌活性方面的研究还未见报道。
发明内容
本发明的目的是提供一种奎宁腙类衍生物,其对植物病原真菌/卵菌具有显著的抑菌活性,可用作植物源杀菌剂活性物质。
本发明的第二个目的是提供上述奎宁腙类衍生物的制备方法,以解决上述问题。
本发明的第三个目的是提供上述奎宁腙类衍生物的应用,以提供一种新型植物病原真菌/卵菌抗菌活性物质。
为了实现以上目的,本发明所采用的技术方案是:
一种奎宁腙类衍生物,其结构通式如式I所示:
R选择C1-C7的烷基、氰基、苯基、取代苯基、杂芳基;所述取代苯基中取代基的数目为1~3个,取代基选自C1-C3的烷基、C1-C3的烷氧基、卤素、氨基、羟基。
本发明提供的奎宁腙类衍生物,经抗菌实验证明,对植物病原真菌/卵菌具有显著的抑菌活性,其中部分化合物抑菌活性超过现已上市的抗菌剂三唑酮/甲霜灵,可用于制备植物源杀菌剂。
为显著提升抗菌活性,优选地,所述奎宁腙类衍生物的结构通式如式Ⅱ、式Ⅲ、式Ⅳ所示:
式Ⅱ中,R1选自C1-C7的烷基或氰基;
式Ⅲ中,R2选自氢、C1-C3的烷基、C1-C3的烷氧基、卤素、氨基、羟基;
式Ⅳ中,R3、R4各自独立地选自氢、卤素。
进一步优选地,式Ⅱ中,R1选自C4-C5的烷基。相应的化合物在抑制植物病原卵菌辣椒疫霉病菌(Phytophthora capsici)活性方面高于已商品化的抗卵菌剂甲霜灵(Metalaxyl)。
进一步优选地,所述奎宁腙类衍生物为下列化合物:
上述化合物被证明在抑制植物病原卵菌辣椒疫霉病菌(P.capsici)活性方面高于已商品化的抗卵菌剂甲霜灵(Metalaxyl)。
进一步优选地,所述奎宁腙类衍生物选自下列化合物:
上述化合物被证明在抑制植物病原真菌小麦赤霉病菌(Fusarium graminearum)活性方面高于已商品化的抗真菌剂三唑酮(Triadimefon)。
作为取代基为杂芳基的典型代表,优选地,所述奎宁腙类衍生物选自下列化合物:
R选自苯基、取代苯基;所述取代苯基中取代基的数目为1~3个,取代基选自C1-C3的烷基、C1-C3的烷氧基。当L选择磺酰基、R选自苯基、取代苯基时,相应的奎宁腙类衍生物也表现出良好地对植物真菌/卵菌活性的抑制效果。
上述奎宁腙类衍生物的制备方法,包括以下步骤:中间体A和相应的肼进行反应,制得式I所示的奎宁腙类衍生物;其中,中间体A为:
本发明的奎宁腙类衍生物的制备方法,利用中间体A的醛基位进一步与各类肼(酰肼、苯肼盐酸盐和苯磺酰肼)反应制备得到奎宁腙类衍生物,制备工艺简单,适于大规模推广应用。
上述奎宁腙类衍生物在制备植物病原真菌和/或卵菌抗菌剂方面的应用。
上述奎宁腙类衍生物对植物病原真菌和/或卵菌具有良好的抑制活性,可用作制备植物源杀菌剂,从而在一定程度上改善非植物抗菌剂在抑菌使用方面的不足。
优选地,所述植物病原真菌为小麦赤霉病菌;植物病原卵菌为辣椒疫霉病菌。上述奎宁腙类衍生物对以上典型真菌/卵菌类型,表现出优良的抑制效果。
附图说明
图1为本发明化合物1的氢谱;
图2为本发明化合物2的氢谱。
具体实施方式
本发明提供的奎宁腙类衍生物,主要用作植物源农药实现植物病原真菌/卵菌的防治。
该奎宁腙类衍生物是以植物次生物质奎宁为原料,首先在奎宁9R-OH位引入4-醛基苯甲酰基,酯化合成重要中间体;中间体醛基位进一步与各类肼(酰肼、苯肼盐酸盐和苯磺酰肼)反应制备得到奎宁腙类衍生物。
该反应的反应通式如下:
以上反应主要是通过中间体A和相应的肼进行反应,制得式I所示的奎宁腙类衍生物。
相应的肼为与产物对应的肼类物质。根据产品类型,相应的肼为酰肼、苯肼盐酸盐和苯磺酰肼。中间体A与相应的肼的摩尔比为1.0:1.0~1.2。
中间体A和相应的肼的反应在溶剂中于醋酸存在的条件下进行。每0.1~0.3mmol中间体A对应溶剂的用量为5mL,对应醋酸的用量为2~3滴。溶剂优选为无水乙醇。反应优选在室温下反应6-24h。
以上反应涉及的典型肼例如:乙酰肼、戊酰肼、辛酰肼、氰基乙酰肼、苯甲酰肼、对甲氧基苯甲酰肼、对氨基苯甲酰肼、对氟苯甲酰肼、2-氯苯甲酰肼、4-氯苯甲酰肼、水杨酰肼、2-噻吩甲酰肼、烟酸酰肼、异烟肼、4-氟苯肼盐酸盐、3,4-二氟苯肼盐酸盐、2-氯苯肼盐酸盐;苯磺酰肼、4-甲苯磺酰肼、2,4,6-三异丙基苯磺酰肼等。
中间体A的制备方法包括:奎宁和4-醛基苯甲酸在溶剂中进行酯化反应。缩水反应以1-(3-二甲氨基丙基)-3-乙基碳二亚胺盐酸盐(EDCI)为缩水剂,4-二甲胺基吡啶(DMAP)为催化剂。
奎宁、4-醛基苯甲酸的摩尔比为1.0:1.0~1.2。奎宁、EDCI、DMAP的摩尔比为1.0:1.0~1.2:0.1~0.2。每4~5mmol奎宁对应溶剂的用量为50mL。溶剂优选为二氯甲烷。反应为室温反应12~24h。
下面结合具体实施例对本发明的实施过程进行详细说明。
一、奎宁腙类衍生物及其制备方法的具体实施例
实施例1~20
实施例1~20的奎宁腙类衍生物,其结构通式如下:
表1实施例1~20的奎宁腙类衍生物
实施例1~20的奎宁腙类衍生物的制备过程说明如下:
中间体A的合成:在100mL烧瓶中加入奎宁(5mmol)、4-醛基苯甲酸(6mmol)、EDCI(6mmol)、DMAP(0.5mmol),并加入50mL二氯甲烷使其完全溶解,室温下搅拌反应。TLC跟踪监测至反应结束。反应结束后,加入30mL饱和碳酸氢钠溶液,并使用二氯甲烷(30mL×3)萃取。合并有机相,先使用饱和食盐水(30mL)洗涤,后用无水硫酸钠干燥。浓缩除去溶剂,经过硅胶柱层析纯化,得到中间体A,产率为51%。
(1)奎宁腙类衍生物1~14(化合物1~14)的合成
在50mL烧瓶中加入中间体A(0.22mmol)和相应的酰肼(0.27mmol)并溶于5mL无水乙醇中,在室温下向溶液中滴加两滴醋酸。上述混合物滴加完毕后室温下搅拌反应6-24h,TLC跟踪监测至反应结束。反应结束后,悬干蒸除溶剂,加入10mL二氯甲烷使其溶解,然后加入10mL饱和碳酸氢钠溶液,并使用二氯甲烷(10mL×3)萃取。合并有机相,先使用饱和食盐水(10mL)洗涤,后用无水硫酸钠干燥。浓缩除去溶剂,经过硅胶柱层析纯化,得到奎宁腙类衍生物1~14,产率在43-78%之间。
(2)奎宁腙类衍生物15~17(化合物15~17)的合成
在50mL烧瓶中加入中间体A(0.22mmol)和相应的苯肼盐酸盐(0.27mmol)溶于5mL无水乙醇中,在室温下向溶液中滴加两滴醋酸。上述混合物滴加完毕后在油浴下回流反应12-24h,TLC跟踪监测至反应结束。反应结束后,悬干蒸除溶剂,加入10mL二氯甲烷使其溶解,然后加入10mL饱和碳酸氢钠溶液,并使用二氯甲烷(10mL×3)萃取。合并有机相,先使用饱和食盐水(10mL)洗涤,后用无水硫酸钠干燥。浓缩除去溶剂,经过硅胶柱层析纯化,得到奎宁腙类衍生物15~17,产率在40-70%之间。
(3)奎宁腙类衍生物18~20(化合物18~20)的合成
在50mL烧瓶中加入中间体A(0.22mmol)和相应的苯磺酰肼(0.27mmol)并溶于5mL无水乙醇中,在室温下向溶液中滴加两滴醋酸。上述混合物滴加完毕后室温下搅拌反应6-24h,TLC跟踪监测至反应结束。反应结束后,悬干蒸除溶剂,加入10mL二氯甲烷使其溶解,然后加入10mL饱和碳酸氢钠溶液,并使用二氯甲烷(10mL×3)萃取。合并有机相,先使用饱和食盐水(10mL)洗涤,后用无水硫酸钠干燥。浓缩除去溶剂,经过硅胶柱层析纯化,得到奎宁腙类衍生物18~20,产率在33-69%之间。
化合物1~20的理化性质及表征分别说明如下:
化合物1:
该化合物的理化性质如下:
1)、白色固体,熔点234~235℃,产率为57%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.92(s,1H),8.73(dd,J=4.4Hz,1.2Hz,1H),8.12(dd,J=8.4Hz,1.6Hz,2H),8.04(dd,J=9.2Hz,1.6Hz,1H),7.83(s,1H),7.71(dd,J=8.4Hz,1.2Hz,2H),7.52(t,J=1.6Hz,1H),7.36-7.42(m,2H),6.77(d,J=6.4Hz,1H),5.79-5.88(m,1H),4.99-5.05(m,2H),3.99(s,3H),3.47-3.51(m,1H),3.21(s,1H),3.13(dd,J=13.6Hz,10Hz,1H),2.65-2.76(m,2H),2.40(s,3H),2.32(s,1H),1.90-1.96(m,2H),1.71-1.82(m,2H),1.60(s,1H)。相应谱图如图1所示。
3)、反应式为:
化合物2:
该化合物的理化性质如下:
1)、白色固体,熔点109~110℃,产率为78%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.45(s,1H),8.73(d,J=4.4Hz,1H),8.12(dd,J=6.4Hz,1.6Hz,2H),8.03(d,J=9.2Hz,1H),7.78(s,1H),7.75(dd,J=6.4Hz,2Hz,2H),7.52(d,J=2.4Hz,1H),7.43(d,J=4.4Hz,1H),7.40(dd,J=9.2Hz,2.8Hz,1H),6.75(s,1H),5.80-5.89(m,1H),5.00-5.05(m,2H),3.99(s,3H),3.54(q,J=8Hz,1H),3.21(s,1H),3.06-3.12(m,1H),2.79(t,J=7.6Hz,2H),2.69(d,J=15.6Hz,2H),2.31(s,1H),1.91(s,1H),1.69-1.76(m,5H),1.59(s,1H),1.40-1.49(m,2H),0.99(t,J=6.4Hz,3H)。相应谱图如图2所示。
3)、反应式为:
化合物3:
该化合物的理化性质如下:
1)、白色固体,熔点83~84℃,产率为59%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.83(d,J=74Hz,1H),8.73(d,J=4.4Hz,1H),8.12(dd,J=6.4Hz,1.6Hz,2H),8.03(d,J=9.2Hz,1H),7.81(d,J=4Hz,1H),7.76(dd,J=6.4Hz,1.6Hz,2H),7.52(d,J=2.4Hz,1H),7.42(d,J=4.4Hz,1H),7.40(dd,J=9.2Hz,2.8Hz,1H),6.77(s,1H),5.80-5.88(m,1H),4.99-5.05(m,2H),3.99(s,3H),3.52(dd,J=8.8Hz,6.4Hz,1H),3.22(s,1H),3.13(dd,J=14Hz,10Hz,1H),2.78(t,J=7.6Hz,2H),2.73(dd,J=14.8Hz,11.2Hz,2H),2.32(s,2H),1.91-1.97(m,2H),1.75(t,J=7.6Hz,2H),1.63(d,J=10.4Hz,1H),1.25-1.45(m,9H),0.89(t,J=6.4Hz,3H)。
3)、反应式为:
化合物4:
该化合物的理化性质如下:
1)、浅黄色固体,熔点252~253℃,产率为43%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.99(s,1H),8.73(d,J=4.4Hz,1H),8.13(d,J=8.4Hz,2H),8.03(d,J=9.2Hz,1H),7.90(s,1H),7.76(d,J=8.4Hz,2H),7.56(s,1H),7.36-7.41(m,2H),6.78(s,1H),5.86(t,J=8.8Hz,1H),5.07(d,J=8.4Hz,1H),5.03(s,1H),4.01(s,3H),3.90(s,2H),3.56(s,1H),3.22(dd,J=9.6Hz,8Hz,1H),2.74(s,2H),2.36(d,J=17.6Hz,1H),1.96(d,J=11.2Hz,2H),1.81(s,2H),1.66(s,2H)。
3)、反应式为:
化合物5:
该化合物的理化性质如下:
1)、白色固体,熔点135~136℃,产率为52%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.81(s,1H),8.72(d,J=4.4Hz,1H),8.43(s,1H),8.08(dd,J=6.4Hz,1.6Hz,2H),8.02(d,J=9.2Hz,1H),7.90(d,J=36Hz,4H),7.52-7.56(m,2H),7.47(t,J=7.6Hz,2H),7.42(d,J=4.4Hz,1H),7.39(dd,J=9.2Hz,2.8Hz,1H),6.77(d,J=6.4Hz,1H),5.80-5.89(m,1H),5.00-5.05(m,2H),3.98(s,3H),3.54(q,J=8Hz,1H),3.20(d,J=14Hz,1H),3.12(dd,J=14Hz,10Hz,1H),2.66-2.75(m,2H),2.31(s,1H),1.91-1.95(m,2H),1.68-1.80(m,2H),1.60(d,J=4.8Hz,1H)。
3)、反应式为:
化合物6:
该化合物的理化性质如下:
1)、无色油状液体,产率为62%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.93(s,1H),8.71(d,J=4.4Hz,1H),8.41(s,1H),8.07(d,J=8.4Hz,2H),8.03(d,J=9.2Hz,1H),7.92(s,2H),7.78(d,J=8Hz,2H),7.55(d,J=2.8Hz,1H),7.41(d,J=4.8Hz,1H),7.39(dd,J=9.2Hz,2.8Hz,1H),6.95(d,J=8.4Hz,2H),6.81(s,1H),5.78-5.87(m,1H),5.02-5.05(m,1H),5.01(d,J=1.2Hz,1H),3.99(s,3H),3.84(s,3H),3.54(q,J=8Hz,1H),3.14(dd,J=13.6Hz,10Hz,1H),2.69-2.76(m,2H),2.41(s,1H),2.33(s,1H),1.93(d,J=2Hz,2H),1.77(s,2H),1.19(s,1H)。
3)、反应式为:
化合物7:
该化合物的理化性质如下:
1)、黄色固体,熔点158~159℃,产率为74%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:9.70(s,1H),8.71(d,J=4.4Hz,1H),8.26(s,1H),8.07(d,J=8Hz,2H),8.02(d,J=9.2Hz,1H),7.78(d,J=8Hz,4H),7.51(d,J=2.8Hz,1H),7.41(d,J=4.8Hz,1H),7.38(dd,J=9.2Hz,2.8Hz,1H),6.75(d,J=6Hz,1H),6.65(d,J=8.4Hz,2H),5.78-5.87(m,1H),4.98-5.04(m,2H),4.05(s,1H),3.98(s,1.5H),3.97(s,3H),3.52(q,J=8Hz,1H),3.16-3.23(m,1H),3.12(dd,J=14Hz,10Hz,1H),2.63-2.73(m,3H),2.31(s,1H),1.89-1.95(m,2H),1.70-1.80(m,2H),1.60(t,J=4.8Hz,1H)。
3)、反应式为:
化合物8:
该化合物的理化性质如下:
1)、白色固体,熔点120~121℃,产率为73%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.01(s,0.7H),9.76(s,0.4H),8.71(d,J=4.4Hz,1H),8.45(s,0.6H),8.07(d,J=4Hz,2H),8.02(d,J=9.2Hz,1H),7.95(s,2H),7.78(s,2.3H),7.54(d,J=2.8Hz,1H),7.36-7.41(m,2H),7.11-7.16(m,2H),6.81(s,1H),5.79-5.88(m,1H),5.03-5.06(m,1H),5.01(t,J=2Hz,1H),3.99(s,3H),3.55(q,J=7.6Hz,1H),3.14(dd,J=13.6Hz,10Hz,1H),2.73(d,J=14.4Hz,2H),2.34(s,2H),1.91-1.97(m,2H),1.82(t,J=12Hz,2H),1.61(s,1H)。
3)、反应式为:
化合物9:
该化合物的理化性质如下:
1)、白固体,熔点138~139℃,产率为47%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.28(s,0.5H),9.53(s,0.5H),8.73(dd,J=12.8Hz,4.8Hz,1H),8.35(s,0.5H),8.12(d,J=8Hz,1H),8.02(q,J=4Hz,2H),7.86-7.91(m,1.5H),7.73-7.75(m,0.5H),7.35-7.53(m,7.5H),6.76(dd,J=10.4Hz,6.4Hz,1H),5.78-5.89(m,1H),4.98-5.05(m,2H),3.98(s,1.5H),3.96(s,1.5H),3.43-3.55(m,1H),3.19(d,J=11.6Hz,1H),3.05-3.12(m,1H),2.64-2.68(m,2H),2.31(d,J=4.4Hz,1H),1.87-1.92(m,2H),1.69-1.78(m,2H),1.60(d,J=8.8Hz,1H)。
3)、反应式为:
化合物10:
该化合物的理化性质如下:
1)、白色固体,熔点143~144℃,产率为48%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.34(s,0.7H),10.08(s,0.4H),8.71(d,J=4.8Hz,1H),8.43(s,0.6H),8.06(d,J=8Hz,2H),8.01(dd,J=9.2Hz,2Hz,1H),7.87(s,2.3H),7.74(s,2H),7.53(d,J=2.8Hz,1H),7.35-7.41(m,4H),6.79(d,J=6.4Hz,1H),5.79-5.88(m,1H),5.00-5.05(m,2H),3.98(s,3H),3.52(t,J=8Hz,1H),3.21(s,1H),3.12(dd,J=13.6Hz,10Hz,1H),2.67-2.76(m,2H),2.32(s,1H),1.91-1.98(m,2H),1.69-1.81(m,2H),1.59-1.63(m,1H)。
3)、反应式为:
化合物11:
该化合物的理化性质如下:
1)、黄色固体,熔点152~153℃,产率为76%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:11.29(s,1H),8.67-8.69(m,1H),8.29(s,1H),7.96-8.02(m,4H),7.65-7.71(m,2H),7.54(t,J=3.2Hz,1H),7.42(d,J=4.8Hz,1H),7.33-7.38(m,2H),6.95-6.99(m,1H),6.84-6.89(m,2H),5.77-5.86(m,1H),5.01-5.06(m,2H),3.91-3.93(m,3H),3.54(q,J=8Hz,1H),3.22(s,1H),3.17(dd,J=14Hz,10Hz,1H),2.74(d,J=11.6Hz,2H),2.36(s,1H),1.95(t,J=12Hz,2H),1.81(d,J=11.6Hz,2H),1.62(s,1H)。
3)、反应式为:
化合物12:
该化合物的理化性质如下:
1)、淡黄色固体,熔点146~147℃,产率为66%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.51(s,1H),8.73(d,J=4.4Hz,1H),8.24(d,J=0.8Hz,1H),8.17(d,J=8Hz,2H),7.99-8.03(m,2H),7.90(d,J=8.4Hz,2Hz),7.73(d,J=3.2Hz,1Hz),7.52(d,J=2.8Hz,1Hz),7.44(d,J=4.8Hz,1Hz),7.39(dd,J=9.2Hz,2.4Hz,1H),7.20(t,J=4.4Hz,1H),6.78(d,J=6.4Hz,1H),5.81-5.89(m,1H),5.00-5.06(m,2H),3.99(s,3H),3.48-3.54(m,1H),3.18-3.25(m,1H),3.13(dd,J=14Hz,10Hz,1H),2.65-2.76(m,2H),2.30-2.32(m,1H),1.92-1.98(m,2H),1.71-1.83(m,2H),1.60-1.63(m,1H)。
3)、反应式为:
化合物13:
该化合物的理化性质如下:
1)、白色固体,熔点132~133℃,产率为75%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.44(s,0.5H),10.23(s,0.5H),9.22(s,0.5H),9.13(s,0.5H),8.75(s,1H),8.71(d,J=4.4Hz,1H),8.49(d,J=0.8Hz,0.5H),8.24-8.27(m,1H),8.09(d,J=8Hz,2H),8.02(d,J=9.2Hz,1H),7.94(s,0.5H),7.81(s,1H),7.68(s,1H),7.53(s,1H),7.36-7.42(m,3H),6.79(s,1H),5.79-5.88(m,1H),5.03-5.06(m,1H),5.00-5.02(m,1H),3.99(s,3H),3.53(d,J=7.6Hz,1H),3.14(t,J=12Hz,1H),2.73(d,J=14.4Hz,2H),2.44(d,J=42.4Hz,2H),1.92-1.97(m,2H),1.79(t,J=13.6Hz,2H),1.61(s,1H)。
3)、反应式为:
化合物14:
该化合物的理化性质如下:
1)、浅黄色固体,熔点222~223℃,产率为74%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:10.27(s,0.5H),10.04(s,0.5H),8.79(d,J=11.6Hz,2H),8.71(d,J=4.4Hz,1H),8.50(s,0.5H),8.08(d,J=8Hz,2H),8.02(d,J=8Hz,2H),7.89(s,0.5H),7.82(d,J=8Hz,1H),7.75(dd,J=4.4Hz,1.2Hz,2H),7.63(d,J=7.2Hz,1H),7.54(d,J=8Hz,1H),7.42(d,J=4.4Hz,1H),7.39(dd,J=9.2Hz,2.4Hz,1H),6.81(s,1H),5.79-5.88(m,1H),5.03-5.06(m,1H),5.01(d,J=1.2Hz,1H),3.99(s,3H),3.53(s,1H),3.14(t,J=12Hz,1H),2.72(s,2H),2.41(d,J=28Hz,2H),1.94(d,J=7.6Hz,2H),1.77(s,2H),1.61(s,1H)。
3)、反应式为:
化合物15:
该化合物的理化性质如下:
1)、黄色油状液体,产率为53%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代DMSO-d6为溶剂,TMS为内标物,其中各峰归属为:δ:10.60(s,1H),8.70(d,J=4.4Hz,1H),8.04(d,J=7.6Hz,2H),7.97(d,J=9.2Hz,2H),7.89(s,1H),7.79(d,J=8.4Hz,2H),7.61(d,J=2.8Hz,1H),7.58(d,J=4.4Hz,1H),7.45(dd,J=9.2Hz,2.8Hz,1H),7.07-7.11(m,4H),6.55(d,J=8.4Hz,1H),5.95-6.03(m,1H),4.99-5.06(m,2H),3.95(s,3H),3.56(q,J=8.4Hz,1H),3.10-3.22(m,2H),2.91(dd,J=13.6Hz,10Hz,1H),2.52-2.55(m,1H),2.25(d,J=2.8Hz,1H),2.06(dd,J=12.8Hz,9.6Hz,1H),1.80(s,1H),1.75(t,J=11.2Hz,1H),1.60(q,J=7.6Hz,1H),1.48(s,1H)。
3)、反应式为:
化合物16:
该化合物的理化性质如下:
1)、黄色油状液体,产率为36%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代DMSO-d6为溶剂,TMS为内标物,其中各峰归属为:δ:10.74(s,1H),8.70(d,J=4.4Hz,1H),8.04(dd,J=6.8Hz,2Hz,2H),7.97(d,J=9.2Hz,1H),7.91(s,1H),7.83(dd,J=6.4Hz,1.6Hz,2H),7.61(d,J=2.8Hz,1H),7.58(d,J=4.8Hz,1H),7.45(dd,J=9.2Hz,2.4Hz,1H),7.32(dd,J=19.6Hz,9.2Hz,1H),7.07-7.13(m,1H),6.81-6.85(m,1H),6.54(d,J=8.8Hz,1H),5.95-6.04(m,1H),4.99-5.06(m,2H),3.95(s,3H),3.48-3.58(m,2H),3.16(s,1H),2.91(dd,J=13.6Hz,10Hz,1H),2.52-2.55(m,1H),2.45(s,1H),2.06(dd,J=13.2Hz,10Hz,1H),1.80(s,1H),1.71(d,J=10Hz,1H),1.60(dd,J=13.6Hz,7.2Hz,1H),1.48(s,1H)。
3)、反应式为:
化合物17:
该化合物的理化性质如下:
1)、黄色油状液体,产率为70%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代CDCl3为溶剂,TMS为内标物,其中各峰归属为:δ:8.73(d,J=4.4Hz,1H),8.29(s,1H),8.09-8.11(m,2H),8.03(d,J=9.2Hz,1H),7.85(d,J=1.2Hz,1H),7.77(dd,J=6.4Hz,2Hz,2H),7.65(dd,J=8Hz,1.2Hz,2H),7.55(s,1H),7.42(d,J=4.4Hz,1H),7.40(dd,J=9.2Hz,2.4Hz,1H),7.24-7.30(m,1H),6.82-6.86(m,2H),5.79-5.88(m,1H),5.03-5.06(m,1H),5.00-5.02(m,1H),4.01(s,3H),3.54(q,J=8Hz,1H),3.26(s,1H),3.16(t,J=12.4Hz,1H),2.73(s,2H),2.35(t,J=6.8Hz,1H),1.93(dd,J=9.2Hz,2.4Hz,2H),1.81(s,2H),1.62(s,1H)。
3)、反应式为:
化合物18:
该化合物的理化性质如下:
1)、黄色油状液体,产率为57%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代DMSO-d6为溶剂,TMS为内标物,其中各峰归属为:δ:11.71(s,1H),8.69(d,J=4.8Hz,1H),8.03-8.05(m,2H),7.94-7.98(m,2H),7.87-7.90(m,2H),7.71-7.73(m,2H),7.58-7.67(m,4H),7.51-7.56(m,1H),7.44(dd,J=8.8Hz,2.4Hz,1H),6.57(d,J=8Hz,1H),5.93-6.02(m,1H),4.98-5.06(m,2H),3.94(s,3H),3.72(d,J=6.4Hz,1H),3.57(q,J=8.4Hz,1H),3.34-3.36(m,1H),2.94(dd,J=13.6Hz,9.6Hz,1H),2.58(d,J=10.4Hz,1H),2.27(s,1H),2.04(t,J=11.2Hz,1H),1.81(s,1H),1.76(t,J=11.2Hz,1H),1.63(t,J=11.2Hz,1H),1.49(s,1H)。
3)、反应式为:
化合物19:
该化合物的理化性质如下:
1)、浅黄色固体,熔点127~128℃,产率为69%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代DMSO-d6为溶剂,TMS为内标物,其中各峰归属为:δ:11.64(s,1H),8.69(d,J=4.4Hz,1H),8.05(d,J=8.4Hz,2H),7.96(d,J=9.2Hz,2H),7.78(d,J=8.4Hz,2H),7.72(d,J=8.4Hz,2H),7.60(d,J=2.4Hz,1H),7.56(d,J=4.4Hz,1H),7.39-7.44(m,3H),6.56(d,J=8.4Hz,1H),5.94-6.03(m,1H),4.98-5.06(m,2H),3.94(s,3H),3.56(q,J=8.4Hz,1H),3.25(s,1H),3.19(t,J=14Hz,1H),2.92(dd,J=13.6Hz,10Hz,1H),2.56(d,J=10Hz,1H),2.35(s,3H),2.25(s,1H),2.02-2.05(m,1H),1.80(s,1H),1.75(t,J=11.2Hz,1H),1.60(dd,J=13.2Hz,7.6Hz,1H),1.48(s,1H)。
3)、反应式为:
化合物20:
该化合物的理化性质如下:
1)、黄色油状液体,产率为33%。
2)、该化合物的核磁共振图谱(1H NMR,400MHz)特征:
以氘代DMSO-d6为溶剂,TMS为内标物,其中各峰归属为:δ:8.67-8.70(m,1H),7.94-8.26(m,4H),7.42-7.69(m,5H),6.94-7.16(m,2H),6.63(q,J=8Hz,1H),5.95-6.02(m,1H),4.98-5.07(m,2H),4.13-4.27(m,1H),3.94(s,3H),3.59(d,J=8.8Hz,1H),3.20(s,2H),2.77-3.00(m,2H),2.53-2.58(m,2H),2.30(s,1H),2.00(d,J=2.4Hz,1H),1.83(s,1H),1.76(s,1H),1.66(d,J=7.2Hz,1H),1.53(s,1H),1.16-1.23(m,12H),1.09-1.15(m,6H)。
3)、反应式为:
二、实验例奎宁腙类衍生物的应用
本实验例进行上述奎宁腙类衍生物抑制植物病原真菌/卵菌活性实验。
1、供试植物病原菌
(1)植物病原真菌1种,即小麦赤霉病菌(F.graminearum),由河南科技大学园艺与植物保护学院植物保护系实验室提供。
(2)植物病原卵菌1种,即辣椒疫霉病菌(P.capsici),由河南科技大学园艺与植物保护学院植物保护系实验室提供。
2、供试样品及试剂
已商品化杀菌剂甲霜灵(Metalaxyl)和三唑酮(Triadimefon)为阳性对照,实施例1制备的奎宁腙类衍生物1~20,丙酮(分析纯)。
3、生物测定方法
采用菌丝生长速率法。
培养基:PDA培养基(其配比为:去皮马铃薯200g、葡萄糖20g、琼脂20g、蒸馏水定容至1 000mL)和V8培养基(其配比为:V-8蔬菜汁160mL、琼脂15g、蒸馏水1500mL)。
采用菌丝生长速率法分别测定了奎宁腙类衍生物1~20对2种常见植物病原真菌/卵菌的室内毒力,以商品化杀菌剂甲霜灵/三唑酮作为阳性对照。将化合物1~20和甲霜灵/三唑酮用丙酮溶解,待灭菌后的培养基冷却至50-55℃时分别与化合物1~20和甲霜灵/三唑酮混合,充分混匀后制成含有50mg/L带药培养基,以不加药剂的为空白对照(CK),每个处理设三个重复。待培养基充分冷却后,接种生长活力一致,直径7mm的供试病原真菌/卵菌菌片,于28±1℃恒温培养,待不同菌CK组菌落长到超过7.5cm时调查。调查时,用十字交叉法测量菌落直径,并用下述公式计算出各个样品对所测病原菌的生长抑制率。
4、杀菌活性测定结果见表2
表2:奎宁腙类衍生物1~20对供试菌株的抑菌效果
5、结论
结果表明,本发明公开的奎宁腙类衍生物1~20对所测2种植物病原真菌/卵菌均表现出较好的抑菌活性;特别是化合物2、6、8和9,其对植物病原卵菌辣椒疫霉病菌(P.capsici)的抑菌活性高于已商品化的抗卵菌剂甲霜灵(Metalaxyl);化合物15和16,其对植物病原真菌小麦赤霉病菌(F.graminearum)的抑菌活性高于已商品化的抗真菌剂三唑酮(Triadimefon)。另外,证明不同奎宁腙类衍生物对抑制植物病原真菌/卵菌表现出明显的选择性,可选择性开发抗植物病原真菌/卵菌剂。鉴于此,本发明公开的奎宁腙类衍生物抑制植物病原真菌/卵菌活性显著,今后有望用于制备新型高效植物源杀菌剂。
Claims (10)
3.如权利要求2所述的奎宁腙类衍生物,其特征在于,式Ⅱ中,R1选自C4-C5的烷基。
9.一种如权利要求1~7中任一项所述的奎宁腙类衍生物在制备植物病原真菌和/或卵菌抗菌剂方面的应用。
10.如权利要求9所述的应用,其特征在于,所述植物病原真菌为小麦赤霉病菌;植物病原卵菌为辣椒疫霉病菌。
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