CN103130730A - 新型喹唑啉类衍生物及其制备方法、抗hiv活性和抗tmv活性 - Google Patents
新型喹唑啉类衍生物及其制备方法、抗hiv活性和抗tmv活性 Download PDFInfo
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- CN103130730A CN103130730A CN2011103766517A CN201110376651A CN103130730A CN 103130730 A CN103130730 A CN 103130730A CN 2011103766517 A CN2011103766517 A CN 2011103766517A CN 201110376651 A CN201110376651 A CN 201110376651A CN 103130730 A CN103130730 A CN 103130730A
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- Prior art keywords
- fluorobenzyl
- methyl
- oxo
- carboxamide
- methoxy
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- 230000000694 effects Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 230000036436 anti-hiv Effects 0.000 title claims abstract 3
- 125000002294 quinazolinyl group Chemical class N1=C(N=CC2=CC=CC=C12)* 0.000 title abstract 2
- 241000725303 Human immunodeficiency virus Species 0.000 claims abstract description 31
- 241000723873 Tobacco mosaic virus Species 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 49
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 38
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 150000001875 compounds Chemical class 0.000 claims description 20
- -1 quinazoline compound Chemical class 0.000 claims description 20
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- 239000002994 raw material Substances 0.000 claims description 12
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- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
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- 125000003545 alkoxy group Chemical group 0.000 claims description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims description 3
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Abstract
Description
技术领域
本发明涉及新型喹唑啉类衍生物I及其制备方法、抗HIV活性和抗TMV活性。
背景技术
艾滋病(acquired immunodeficiency syndrome,AIDS)是由人类免疫缺陷病毒(human immunodeficiency virus,HIV)引起的具有传染性的疾病。自1981年美国研究人员发现世界首例艾滋病病例以来,艾滋病已累计夺走了2700多万人的生命,逐渐成为人类的头号杀手。预计至2020年,将有2亿人感染HIV(2010,UNAIDS/10.11E |JC1958E.)。因此艾滋病被称为“世纪癌症”。HIV病毒是一个直径大约为10nm的圆球体,核心有两个单股正链RNA和由病毒编码的逆转录酶、整合酶和蛋白酶(J.Mol.Biol.,1999,285,1-32.)。
1995年,美籍华裔科学家何大一教授发明了目前临床上常用的“鸡尾酒疗法”,即应用蛋白酶抑制剂和逆转录酶抑制剂组合,全面阻止病毒复制,降低HIV中单个点突变的可能性,从而延缓耐药性。尽管“鸡尾酒疗法”在诞生时给AIDS的治疗带来了一场革命,使得AIDS发病率和死亡率都有所下降,但仍有一部分病人对其中一种或多种药物产生抗药性,特别是这种疗法不能根除低水平状态下病毒持续进行的复制,HIV仍然存在于某些机体组织中,需要使用药物进行长期治疗;此外,组合使用治疗药物价格非常昂贵,限制了它们在不发达国家的应用(Science,2002,296,2320-2324.)。由于存在上述问题,人们希望通过对HIV的生命周期及其致病机制进行更为深入的研究,寻找作用于HIV生命周期中其他靶点的抗AIDS药物,从而在“鸡尾酒疗法”中添加一种具有新功能的药物,达到增加组合治疗的效果。
HIV-1整合酶催化病毒cDNA与宿主细胞基因组的整合,是HIV病毒复制周期中必需的关键酶。人体内无整合酶功能类似物。因此,整合酶是抗艾滋病药物研发的理想靶点。2007年10月默克公司优化筛选出来的小分子药物雷特格韦(raltegravir)获得美国FDA批准,成为第一个也是目前唯一的整合酶抑制剂。针对整合酶的抗病毒研究成为了治疗AIDS的热点。2010年,Stephen Hare等人发表了一篇名为《Retroviral intasome assembly and inhibition of DNA strand transfer》的文章(Nature,2010,464,232-236)。研究人员培育出原型泡沫病毒(PFV)的整合酶晶体。他们通过对晶体的X射线衍射,得到其三维构型。这篇文章的意义在于PFV的整合酶与HIV整合酶是高度同源的,这相当于得到了非常近似于HIV整合酶的完整三维构型,而这一难题困扰了科学家20多年。通 过对该整合酶结构的研究,有望设计出更安全有效的HIV整合酶抑制剂,解决病毒耐药性问题,改善治疗AIDS的方法与效果。
尽管雷特格韦的开发给艾滋病患者带来了福音,但随着艾滋病患者生存和用药时间不断延长,药物不良反应、患者依从性、病毒耐药性等问题逐渐出现。解决这一问题的最好办法就是新药的研发。
烟草花叶病毒(tobacco mosaic virus,TMV)是一种植物正链RNA病毒。病毒粒体杆状,大小300×18nm(见附图),有一中央空洞区,半径2nm。病毒粒体主要由衣壳蛋白和RNA组成(Annu.Rev.Phytopathol.,2004,42,13-34)。
TMV生命力相当顽强,在钝化温度90-93℃条件下经10分钟,稀释限点1百万倍,体外保毒期可达72-96小时。在无菌条件下致病力达数年,在干燥病组织内存活30年以上。该病毒有不同株系,我国主要有普通株系、番茄株系、黄斑株系和珠斑等4个株系,因致病力差异及与其他病毒的复合侵染而造成症状的多样性。
TMV可浸染38个科268种植物,该病毒病阻碍了烟草产量和品质的进一步提高,对烟草生产危害极大,一般年份发病率约为25%,严重的达50%以上,经济损失惨重。目前开发出的植物病毒防治剂在最佳施药浓度下防效一般都低于60%,其防治效果不理想,远远满足不了农业的需求。
喹唑啉类化合物是一类具有广泛生物活性的含氮杂环化合物,它具有对表皮生长因子受体(EGFR)或其酪氨酸激酶(EGFR-TK)、血管内皮生长因子受体(VEGFR)、血小板衍生生长因子受体(PDGFR)、神经生长因子受体(NGFR)等多个作用靶点的抑制活性,从而在抗炎(Farmaco,1999,54,780-784)、抗菌(Pharm.Acta.Helv.,1999,74,11-17)、抗高血压(Bioorg.Med.Chem.,2003,11,2439-2444)、抗肿瘤(J.Med.Chem.,2000,43,1910-1926)和抗TMV(存机化学,2008,28,1785-1791)等方面均显示出良好的活性。
发明内容
本发明的目的是提供新型喹唑啉类衍生物I(图2)以及它们的制备方法、抗HIV活 性和抗TMV活性。本发明提供了一种简易的制备喹唑啉类衍生物I的方法。本发明发现喹唑啉类衍生物I具有抗HIV活性和抗TMV活性。
本发明的喹唑啉类衍生物是具有如下通式I所示结构的化合物,R1代表H、1-10碳的烷氧基、1-10碳的烷胺基、1-10碳的取代苄氧基、1-10碳的取代苄胺基、1-10碳的烷基;R2代表OH、F、Cl、Br、I2、1-10碳的烷氧基、1-10碳的烷胺基、1-10碳的取代苄氧基、1-10碳的取代苄胺基、1-10碳酰氧基、1-10碳酰胺基、1-10碳烷羰基;R3代表H、1-10碳的烷基、1-10碳的取代苄基;R4代表H,1-10碳的烷基、1-10碳的烷胺基、1-10碳的取代苄胺基、1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基;R5代表单键、H;R6代表单键、H、1-10碳的烷基,1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基。
结构式1
本发明的喹唑啉类衍生物I的制备(方程式1)如下:
首先以2-甲基-5-氨基苯酚为原料,经特戊酰基保护得2,再经甲基化后得3。邻位羧基化反应得酸4,与氯甲酸乙酯成酐后胺解得5,经高锰酸钾氧化后得6,再与对氟苄胺反应得7,脱保护得关键合成子8,再与相应的醛脱水成环得I-1~11,接下来用碘氧化法制得I-12~22,最后在三氯化铝和吡啶条件下脱甲基制得化合物I-23~30。
方程式1
方程式1用来说明通式I所指化合物的合成,但不限制通式I中化合物的合成,R代表H,1-10碳的烷基、1-10碳的烷胺基、1-10碳的取代苄胺基、1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基。
本发明提供的新型喹唑啉类化合物I具有很好的抗病毒活性,能很好地抑制HIV和TMV的感染。
附图说明:TMV结构示意图1、RNA;2、衣壳体;3、衣壳。
具体实施方式
下述的实施例和生测试验结果可用来进一步说明本发明,但不意味着限制本发明。
实施例1:喹唑啉类化合物I-1,I-12和I-23的合成(见方程式2)
方程式2
化合物2的合成:
1L的反应瓶中,加入20g(0.16mol)邻甲基-5-氨基苯酚(1),41g(0.49mol)碳酸氢钠,350mL水,450mL乙酸乙酯,机械搅拌下滴加29g(0.24mol)特戊酰氯,反应3h,分液,水相用乙酸乙酯萃取(2×100mL),合并有机相,用饱和碳酸钠溶液洗涤(2×200mL),无水硫酸镁干燥,加一薄层硅胶抽滤,脱溶得白色固体产品32.3g,收率96%,熔点146-148℃;1H NMR(400MHz,CDCl3):δ=8.29(s,1H,OH),7.89(s,1H,6-H),7.36(brs,1H,NH),7.00(d,J=7.9Hz,1H,4-H),6.40(d,J=7.9Hz,1H,3-H),2.20(s,3H,ArCH3),1.33(s,9H,C(CH3)3)ppm;13C NMR(100MHz,CDCl3):δ=177.6,155.7,136.2,130.4,121.1,110.3,107.5,39.7,27.6,15.7ppm;Anal.Calcd.for C12H17NO2:C,69.54;H,8.27;N,6.76.Found:C,69.58;H,8.49;N,6.65.
化合物3的合成:
500mL的反应瓶中,加入10g(48.3mmol)原料2,250mL无水处理的四氢呋喃,磁力搅拌下分批加入2.5g(72.5mmol)70%的氢化钠,搅拌反应2h,滴加12.2g硫酸二甲酯,反应1h,TLC检测反应完全,冷至室温,加水分解过量的硫酸二甲酯,脱溶,300mL乙酸乙酯溶解,分别以水(100mL),饱和食盐水(100mL)洗涤,无水硫酸镁干燥,脱溶,柱层析后用石油醚重结晶得白色针状固体9.2g,收率86%,熔点124-126℃;1HNMR(400MHz,CDCl3):δ=7.49(s,1H,6-H),7.29(brs,1H,NH),7.03(d,J=7.9Hz,1H,4-H),6.71(dd,J=7.9Hz,1.4Hz,1H,3-H),3.84(s,3H,OMe),2.17(s,3H,ArCH3),1.32(s,9H,C(CH3)3)ppm;13C NMR(100MHz,CDCl3):δ=176.6,157.9,137.1,130.2,122.3,110.9,102.8,55.4,39.6,27.7,15.8ppm;Anal.Calcd.for C13H19NO2:C,70.56;H,8.65;N,6.33.Found:C,70.29;H,8.77;N,6.17.
化合物4的合成:
2L的反应瓶中,加入22g(0.1mol)原料3,1.2L无水四氢呋喃,机械搅拌下,滴加146mL(0.22mol)正丁基锂的正己烷溶液,反应10h,溶液由桔红色逐渐变为黄色粘稠液,缓缓鼓入高纯的CO2气体,持续鼓气6h,反应液逐渐变为深红色清液,脱溶,加入10%的氢氧化钾溶液500mL,以乙酸乙酯萃取(2×150mL)除去未反应的原料,水相慢慢滴加浓盐酸调酸性(pH=2-3),以乙酸乙酯萃取(3×200mL),合并有机相,无水硫酸镁干燥,抽滤,脱溶得黄色固体21g,收率81%,熔点93-95℃;1H NMR(400MHz,CDCl3):δ=12.29(brs,1H,COOH),11.72(brs,1H,NH),8.63(d,J=8.8Hz,1H,4-H),7.40(d,J=8.8Hz,1H,3-H),3.92(s,3H,OMe),2.32(s,3H,ArCH3),1.34(s,9H,C(CH3)3)ppm; 13C NMR(100MHz,CDCl3):δ=178.2,168.1,157.4,141.6,137.3,124.5,118.0,107.9,62.9,40.5,27.5,15.5ppm;Anal.Calcd.for C14H19NO4:C,63.38;H,7.22;N,5.28.Found:C,63.18;H,7.37;N,5.16.
化合物5的合成:
500mL的反应瓶中,加入7g(0.026mol)原料4,220mL无水处理的四氢呋喃,3.2g(0.032mol)三乙胺,磁力搅拌下,滴加4.95g(0.029mol)氯甲酸乙酯,出现大量白色沉淀,反应2h,滴加25%的甲胺水溶液7.86g(0.063mol),反应3h,脱溶,加入200mL乙酸乙酯溶解,分别用饱和碳酸氢钠(100mL),水(100mL),饱和食盐水(100mL)洗涤,无水硫酸镁干燥,脱溶得浅黄色固体产品6.3g,收率86%,熔点105-107℃;1H NMR (400MHz,CDCl3):δ=11.50(brs,1H,NH),8.36(d,J=8.6Hz,1H,4-H),7.80(d,J=0.8Hz,1H,CH3NH),7.23(d,J=8.6Hz,1H,3-H),3.69(s,3H,OMe),3.02(d,J=4.8Hz,3H,NMe),2.24(s,3H,ArCH3),1.32(s,9H,C(CH3)3)ppm;13C NMR(100MHz,CDCl3):δ=177.6,168.0,156.3,139.2,134.0,125.5,117.5,114.0,61.3,40.1,27.6,26.6,15.5ppm;Anal.Calcd.for C15H22N2O3:C,64.73;H,7.97;N,10.06.Found:C,64.71;H,8.12;N,10.12.
化合物6的合成:
1L的反应瓶中,加入25g(0.09mol)原料5,33.4g(0.42mol)吡啶,109mL水,磁力搅拌下分批加入42.6g(0.27mol)高锰酸钾,约20min加完,再反应3h,加入10%的保险粉水溶液100mL分解未反应完的高锰酸钾,加硅藻土抽滤,分别以150mL水和150mL甲醇洗涤洗涤滤饼,滤液浓缩后0℃下以浓盐酸调酸性,加二氯甲烷萃取(3×150mL),合并有机相,无水硫酸钠干燥,抽滤,脱溶,柱层析得白色固体产品23.3g,收率84%,熔点192-194℃;1H NMR(400MHz,CDCl3):δ=11.59(brs,1H,NH),8.59(d,J=9.0Hz,1H,4-H),8.11(d,J=9.0Hz,1H,3-H),7.54(d,J=4.2Hz,1H,CH3NH),3.90(s,3H,OMe),3.06(d,J=4.8Hz,3H,NMe),1.33(s,9H,C(CH3)3)ppm;13C NMR(100MHz,CDCl3):δ=178.2,168.5,167.0,159.5,145.8,135.9,117.2,116.8,114.9,63.8,40.5,27.5,26.8ppm;Anal.Calcd.for C15H20N2O5:C,58.43;H,6.54;N,9.09.Found:C,58.38;H,6.61;N,9.04.
化合物7的合成:
500mL的反应瓶中,加入11g(0.036mol)原料6,300mL无水处理的四氢呋喃,4.3g(0.043mol)三乙胺,磁力搅拌下,滴加6.7g(0.039mol)氯甲酸乙酯,出现大量白色沉淀,滴加对氟苄胺10.71g(0.086mol),反应4h,脱溶,加入200mL乙酸乙酯溶解,分别用饱和碳酸氢钠(100mL),水(100mL),饱和食盐水(100mL)洗涤,无水硫酸镁干燥,脱溶柱层析得浅黄色液体,冷冻固化12.7g,收率86%,熔点134-136℃;1H NMR(400MHz,CDCl3):δ=11.22(brs,1H,NH),8.46(d,J=9.0Hz,1H,4-H),8.05(d,J=9.0Hz,1H,3-H),7.70-7.78(m,1H,NH),7.40-7.44(m,1H,NH),7.28-7.35(m,2H,ArH),7.01-7.05(m,2H,ArH),4.56(d,J=5.6Hz,2H,ArCH2),3.69(s,3H,OMe),3.02(d,J=4.8Hz,3H,NMe),1.30(s,9H,C(CH3)3)ppm;13C NMR(100MHz,CDCl3):δ=177.9,166.9,164.5,163.4,161.0,156.4,143.6,134.4,134.2,134.1,129.6,129.5,121.0,117.7,115.7,115.5,114.8,63.4,43.2,40.3,27.5,26.8ppm;Anal.Calcd.for C22H26FN3O4:C,63.60;H,6.31;N,10.11.Found:C,63.61;H,6.51;N,10.15.
化合物8的合成:
500mL的反应瓶中,加入6g(14.5mmol)原料7,120mL水,120mL浓盐酸,回流反应约1h,TLC随时检测反应至产品点不再增大终止反应,脱溶,0℃下调碱性,乙酸乙酯萃取(3×100mL),合并有机相无水硫酸镁干燥,抽滤,脱溶,柱层析得浅黄色固体产品2.9g,收率61%,熔点170-172℃;1H NMR(400MHz,CDCl3):δ=7.92(d,J=8.8Hz,1H,4-H),7.80(brs,1H,NH),7.32(dd,J=5.5,8.1Hz,2H,ArH),7.15(brs,1H,NH),7.02(t,J=8.6Hz,2H,ArH),6.51(d,J=8.8Hz,1H,3-H),5.90(brs,2H,NH2),4.58(d,J=5.6Hz,2H,ArCH2),3.67(s,3H,OMe),2.97(d,J=4.8Hz,3H,NMe)ppm;13C NMR(100MHz,DMSO-d6):δ=166.0,164.9,157.1,149.6,143.0,135.5,131.8,129.3,129.3,129.3,115.0,114.8,111.2,62.8,62.4,41.9,27.0,26.0ppm;HRMS(ESI)calcd for C17H17FN3O3(M-H)-:330.1259,found:330.1257.
化合物I-1的合成:
100mL的反应瓶中,加入0.5g(1.5mmol)原料8,0.3g(2.3mmol)相应的醛,0.05g(0.3mmol)对甲苯磺酸,0.5g无水硫酸镁,60mL无水处理的乙醇,反应3h,脱溶,加入100mL二氯甲烷,分别用饱和碳酸氢钠溶液(100mL),水(100mL),饱和食盐水(100mL)洗涤,无水硫酸钠干燥,抽滤,脱溶,柱层析得浅黄色固体产品0.6g,收率92%,熔点181-183℃;1H NMR(400MHz,CDCl3):δ=8.26(s,1H,CONH),8.03(d,J=8.7Hz,1H,ArH),7.28-7.37(m,4H,ArH),6.99-7.06(m,4H,ArH),6.44(d,J=8.7Hz,1H,ArH),5.66(s,1H,ArCH),5.36(s,1H,ArNH),4.56(d,J=4.5Hz,2H,ArCH2),3.85(s,3H,OMe),2.92(s,3H,NMe)ppm;HRMS(ESI)calcd for C24H20F2N3O3(M-H)-:436.1478,found:436.1477.
化合物I-12的合成:
100mL的反应瓶中,加入0.4g(1mmol)原料胺,60mL无水乙醇,0.8g(3mmol)单质碘,反应9h,TLC检测反应完成,脱溶,加入30mL 10%Na2S2O4水溶液,50mL二氯甲烷,室温搅拌30min,分液,有机相分别用30mL 10%Na2S2O4水溶液和50mL水洗涤,无水硫酸钠干燥,脱溶,柱层析得白色固体产品0.4g,收率92%,熔点219-221℃;1H NMR(400MHz,CDCl3):δ=8.50(d,J=8.7Hz,1H,ArH),8.35(s,1H,NH),7.58-7.64(m,2H,ArH),7.36(dd,J=8.2,5.6Hz,2H,ArH),7.22-7.27(m,3H,ArH),7.05(t,J=8.6Hz,2H,ArH),4.66(d,J=5.6Hz,2H,ArCH2),3.91(s,3H,OMe),3.50(s,3H,NMe)ppm;HRMS(ESI)calcd for C24H18F2N3O3(M-H)-:434.1322,found:434.1329.
化合物I-23的合成:
100mL的反应瓶中,加入0.17g(0.4mmol)原料I-12,0.16g(1.2mmol)三氯化铝,60mL二氯甲烷,磁力搅拌下滴加0.38g(4.8mmol)吡啶,反应28h,调酸性,加水稀释,二氯甲烷萃取,无水硫酸钠干燥,脱溶,柱层析得白色固体产品0.12g,收率74%,熔点195-197℃;1H NMR(400MHz,CDCl3):δ=13.58(s,1H,OH),8.60(d,J=8.7Hz,1H,ArH),8.51(s,1H,NH),7.62(dd,J=8.6,5.2Hz,2H,ArH),7.38(dd,J=8.3,5.6Hz,2H,ArH),7.23-7.30(m,3H,ArH),7.04(t,J=17.3Hz,2H,ArH),4.69(d,J=5.6Hz,2H,ArCH2),3.52(s,3H,NMe)ppm;HRMS(ESI)calcd for C23H16F2N3O3(M-H)-:420.1165,found:420.1160.
实施例2:部分喹唑啉类化合物I的化学结构式和物理常数,见表1:
表1.部分喹唑啉类化合物I的化学结构式和物理常数
实施例3:抗HIV活性的测定,测定程序如下:
1 测试材料:
①TZM细胞:可响应HIV-1病毒感染的一种细胞系;
②HIV-1假病毒:由HIV-1包膜缺失的质粒和提供VSVG包膜的质粒(Proc.Natl.Acad.Sci.USA 1993,90,8033-8037)转染后组装而成,实验中是制备成病毒储液备用;
③检测药物:正对照药物AZT,正对照药物Raltegravir(NIH提供),喹唑啉类化合物I。
2 测试方法
1、MTT法细胞毒测试(J.Immunol.Methods 1983,65,55-63):接种TZM-BL细胞到96孔板中,每孔铺104个细胞,待细胞长到50%-60%汇合度时加入一定浓度的待测药物,48h后检测细胞存活率。本实验采用SRB(磺酰罗丹明)染色法检测细胞存活率。细胞培养48h后,用50%TCA(三氯乙酸)固定1h(4℃),然后用水洗5次,室温晾干;加入0.4%SRB染色,室温0.5h,1%乙酸洗涤5次,室温晾干;加入未缓冲的10mM的Tris溶液溶解结合的染料,490nm-530nm下测光吸收值。
细胞毒=(只加药物的OD490/不加药的细胞本底的OD490)×100%。
2、病毒抑制实验:将TZM指示细胞系接种96孔细胞培养板;24h后加入待测药物;药物孵育4h后加入HIV-1假病毒感染;感染48h后检测报告基因表达,指示病毒感染情况(如果药物对病毒有抑制作用,病毒感染下降,报告基因活性则降低)。
注:每次每孔中接种的细胞量相同(104个),待测药物设3孔重复,假病毒每孔加入15个TCID50的量。
抑制率=(只加病毒的荧光素酶活性-加病毒加药物荧光素酶活性)/(只加病毒的荧光素酶活性-本底荧光素酶活性)×100%。
由于有的药物有很强的细胞毒活性,把细胞都杀死了,因此荧光素酶活性很低,这样测得的抑制率不能反映真实的抑制效率,所以使用下面公式进行对药物的综合评价:
抑制效率=抑制率×对本底的激活百分比(细胞毒)。
表2为部分化合物的抑制活性测试结果。
表2部分喹唑啉类化合物I在10μM浓度下的抗HIV活性测试结果
从表2中数据可见,大部分化合物表现出了很好的抗HIV活性,充分说明新型喹唑啉类化合物I能够抑制HIV的感染,尤其化合物I-2、I-23、I-24和I-29可以作为新的先导进行进一步的优化。
实施例4:抗TMV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;宁南霉素制剂直接兑水稀释。
3、离体治疗作用:
摩擦接种珊西烟适龄叶片,用流水冲洗,病毒浓度10μg/mL。收干后剪下,沿叶中脉对剖,左右半叶分别浸于1‰吐温水及药剂中,30min后取出,于适宜光照温度下保湿培养,每3片叶为1次重复,重复3次。3d后记录病斑数,计算防效。
4、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。
5、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。
6、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‰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%
表3为部分化合物的抑制活性测试结果。
表3部分喹唑啉类化合物I的抗TMV活性测试结果
从表3中数据可见,部分化合物表现出了很好的抗TMV活性,虽不及商品化品种,但可以作为新的先导进行进一步的优化。
Claims (7)
1.如下通式所示结构的新型喹唑啉类化合物I(图1),式中,R1代表H、1-10碳的烷氧基、1-10碳的烷胺基、1-10碳的取代苄氧基、1-10碳的取代苄胺基、1-10碳的烷基;R2代表OH、F、Cl、Br、I2、1-10碳的烷氧基、1-10碳的烷胺基、1-10碳的取代苄氧基、1-10碳的取代苄胺基、1-10碳酰氧基、1-10碳酰胺基、1-10碳烷羰基;R3代表H、1-10碳的烷基、1-10碳的取代苄基;R4代表H,1-10碳的烷基、1-10碳的烷胺基、1-10碳的取代苄胺基、1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基;R5代表单键、H;R6代表单键、H、1-10碳的烷基,1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基。
图1
其特征在于优选的通式I所示的化合物是:
N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-1;
N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-2;
N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-3;
N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-4;
N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-5;
N-(4-氟苄基)-2-(3-吡啶基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-6;
N-(4-氟苄基)-2-正丁基-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-7;
N-(4-氟苄基)-2-叔丁基-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-8;
N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-9;
N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-10;
N-(4-氟苄基)-2-(Z-苯乙烯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-11;
N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-12;
N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-13;
N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-14;
N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-15;
N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-16;
N-(4-氟苄基)-2-(3-吡啶基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-17;
N-(4-氟苄基)-2-正丁基-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-18;
N-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-19;
N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-20;
N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-21;
N-(4-氟苄基)-2-(Z-苯乙烯)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-22;
N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-23;
N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-24;
N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-25;
N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-26;
N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-27;
N-(4-氟苄基)-2-正丁基-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-28;
N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-29;
N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-30。
2.一种简易的制备喹唑啉类化合物I的方法,发展了方程式1所示的合成方法:首先以2-甲基-5-氨基苯酚为原料,经特戊酰基保护得2,再经甲基化后得3。邻位羧基化反应得酸4,与氯甲酸乙酯成酐后胺解得5,经高锰酸钾氧化后得6,再与对氟苄胺反应得7,脱保护得关键合成子8,再与相应的醛脱水成环得I-1~11,接下来用碘氧化法制得I-12~22,最后在三氯化铝和吡啶条件下脱甲基制得化合物I-23~30。
方程式1
方程式1用来说明通式I的合成方法,但不限制该合成方法的应用,R代表H,1-10碳的烷基、1-10碳的烷胺基、1-10碳的取代苄胺基、1-10碳的取代苄基、1-10碳的取代芳基、1-10碳的含杂环取代基。
3.按照权利要求2所述的喹唑啉类化合物I的制备方法,其特征在于:按照方程式1的操作可以由2-甲基-5-氨基苯酚(1)方便的制备出新型喹唑啉类化合物I-1~30。
4.权利要求1所述的喹唑啉类化合物I的应用,其特征在于它们的抗HIV活性,能很好地抑制艾滋病病毒(HIV)。
5.按照权利要求4所述的喹唑啉类化合物I的应用,其特征在于N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-1,N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-2,N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-3,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-4,N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-5,N-(4-氟苄基)-2-正丁基-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-7,N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-9,N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-12,N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-14,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-15,N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-16,N-(4-氟苄基)-2-正丁基-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-18,N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-23,N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-24,N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-25,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-26,N-(4-氟苄基)-2-正丁基-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-28,N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-29,N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-30具有HIV抑制活性。
6.权利要求1所述的喹唑啉类化合物I的应用,其特征在于它们的抗TMV活性,能很好地抑制烟草花叶病毒(TMV)。
7.按照权利要求6所述的喹唑啉类化合物I的应用,其特征在于N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-1,N-(4-氟苄基)-2-(4-硝基苯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-2,N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-3,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-4,N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-5,N-(4-氟苄基)-2-(3-吡啶基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-6,N-(4-氟苄基)-2-叔丁基-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-8,N-(4-氟苄基)-2-(Z-苯乙烯基)-3-甲基-5-甲氧基-4-氧代-1,2,3,4-四氢喹唑啉-6-甲酰胺I-11,N-(4-氟苄基)-2-(4-氟苯基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-12,N-(4-氟苄基)-2-(2-呋喃基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-14,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-15,N-(4-氟苄基)-2-(2-吡啶基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-16,N-(4-氟苄基)-2-(3-吡啶基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-17,N-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-19,N-(4-氟苄基)-2-(4-氟苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-20,N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-21,N-(4-氟苄基)-2-(Z-苯乙烯)-3-甲基-5-甲氧基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-22,N-(4-氟苄基)-2-(2-噻吩基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-26,N-(4-氟苄基)-2-(4-硝基苄基)-3-甲基-5-羟基-4-氧代-3,4-二氢喹唑啉-6-甲酰胺I-30具有抗TMV活性,虽不及商品化品种,但可以作为新的先导进行进一步的优化。
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| WO2021204667A1 (de) | 2020-04-07 | 2021-10-14 | Bayer Aktiengesellschaft | Substituierte isophtalsäurediamide |
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| WO2021204669A1 (de) | 2020-04-07 | 2021-10-14 | Bayer Aktiengesellschaft | Substituierte isophtalsäurediamide |
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| CN108250152A (zh) * | 2018-01-24 | 2018-07-06 | 浙江师范大学 | 一种具有抗菌活性的3,4-二氢喹唑啉衍生物及其合成方法和应用 |
| CN108250152B (zh) * | 2018-01-24 | 2021-04-13 | 浙江师范大学 | 一种具有抗菌活性的3,4-二氢喹唑啉衍生物及其合成方法和应用 |
| WO2021204667A1 (de) | 2020-04-07 | 2021-10-14 | Bayer Aktiengesellschaft | Substituierte isophtalsäurediamide |
| WO2021204665A1 (de) | 2020-04-07 | 2021-10-14 | Bayer Aktiengesellschaft | Substituierte isophtalsäurediamide |
| WO2021204669A1 (de) | 2020-04-07 | 2021-10-14 | Bayer Aktiengesellschaft | Substituierte isophtalsäurediamide |
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