CN108558813B - 一种含有类黄酮的白藜芦醇类衍生物及其制备方法和用途 - Google Patents
一种含有类黄酮的白藜芦醇类衍生物及其制备方法和用途 Download PDFInfo
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Abstract
本发明公开了一种含有类黄酮的白藜芦醇类衍生物及其制备方法和用途,其中含有类黄酮的白藜芦醇类衍生物的结构由以下通式(1)或通式(2)表示:
Description
技术领域
本发明涉及一种白藜芦醇类衍生物,具体地说是一种含有类黄酮的白藜芦醇类衍生物及其制备方法和用途。
背景技术
白藜芦醇,又称3,4',5-三羟基二苯乙烯,是一种含有芪类结构的非类黄酮多酚,天然存在的白藜芦醇具有反式和顺式两种异构体,反式异构体比顺式异构体更稳定。
白藜芦醇是具有生物学多效性的多酚类物质之一。除了作为植物抗毒素,用于植物自我保护之外,白藜芦醇还具有抗菌、抗癌、抗炎、抗过敏、降血脂、抗氧化等多种药理活性。在这些药理活性中,白藜芦醇的抗炎作用引起了人们的广泛兴趣。研究表明,白藜芦醇对急性、慢性炎症均有良好的治疗作用,其抗炎机制可能与抑制炎症信号转导通路,减少炎症细胞因子生成,干扰花生四烯酸代谢相关。
类黄酮(Flavonoid)是广泛分布在自然界一种多酚类化合物,存在于水果,蔬菜,豆类以及茶叶等食源性植物中。泛指两个或多个具有酚羟基的苯环通过中央三碳原子相互连结而成的一类化合物。研究发现,类黄酮化合物具有抗癌,抗微生物,抗病毒,抗炎,免疫调节和抗血栓等活性。在这些生物活性中,类黄酮的抗炎能力早已通过使用粗制植物提取物在中药中使用得以证明。
发明内容
本发明依据药物的拼合原理和基于结构的药物分子设计理念,在白藜芦醇所具有的二苯乙烯分子骨架上引入类黄酮结构结构,旨在提供一种含有类黄酮的白藜芦醇类衍生物及其制备方法和用途。生物活性测试结果表明本发明含有类黄酮的白藜芦醇类衍生物能够抑制LPS刺激的RAW264.7释放NO。
本发明含有类黄酮的白藜芦醇类衍生物,其结构由以下通式(1)或通式(2)表示:
通式(1)中,R1选自H、4-CH3、5-CH3、5-OCH3、4-F、5-F、3-Cl、4-Cl、5-Cl、4-Br、5-Br或4,5-CH3;R2选自Me、Et或N-buty。
通式(2)中,R3选自H、4-CH3、5-CH3、4,5-CH3、5-OCH3、4,5-OCH3、4-F、5-F、3-Cl、4-Cl、5-Cl、4-Br、5-Br;R4选自Me、Et、N-buty或benzyl。
进一步地,通式(1)中化合物的结构式优选为如下F1-F18的结构;通式(2)中化合物的结构式优选为如下H1-H22的结构。
Comp.no | R<sub>2</sub> | R<sub>1</sub> | Comp.no | R<sub>2</sub> | R<sub>1</sub> |
F1 | Me | H | F10 | Me | 4-Br |
F2 | Me | 4-CH<sub>3</sub> | F11 | Me | 5-Br |
F3 | Me | 5-CH<sub>3</sub> | F12 | Me | 4,5-CH<sub>3</sub> |
F4 | Me | 5-OCH<sub>3</sub> | F13 | Et | H |
F5 | Me | 4-F | F14 | Et | 5-OCH<sub>3</sub> |
F6 | Me | 5-F | F15 | Et | 5-Br |
F7 | Me | 3-Cl | F16 | N-buty | H |
F8 | Me | 4-Cl | F17 | N-buty | 5-OCH<sub>3</sub> |
F9 | Me | 5-Cl | F18 | N-buty | 5-Br |
结合效果,优选基团为R2=-CH3、R1=5-OCH3;R4=-CH3、R3=5-OCH3。
本发明含有类黄酮的白藜芦醇类衍生物的制备方法之一,包括如下步骤:
步骤a、称取(E)-3,5-二甲氧基-4'-羟基苯乙烯(A,1mmol)于50mL圆底烧瓶中,加入15mL丙酮溶解,加入四丁基溴化铵(TBAB,1.2mmol)、无水K2CO3(1.2mmol),搅拌5min后加入溴代烷(1mmol),保持回流反应,TLC监测,反应完全后抽滤,干燥,经柱层析分离(洗脱液为乙酸乙酯和石油醚,1:6,v/v)得B2-3;
所述溴代烷的结构式为:R2′-Br,其中R2′选自乙基或正丁基。
其中B2-3的结构式为
B2-3中R2′选自乙基或正丁基。
步骤b、先向N,N-二甲基甲酰胺中加入B1-3,然后于冰浴中缓慢滴加三氯氧磷,B1-3与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析(二氯甲烷:石油醚=1:2,v/v),分离得C1-3。
所述B1-3为B1、B2-3中的一种;其中B1的结构式为:
所述C1-3的结构式为:
步骤c、称取取代羟基苯乙酮(1mmol)、C1-3(1mmol)、吡咯烷(1mmol)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应36h,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D1-18;
所述D1-18的结构式为:
其中R1选自H、4-CH3、5-CH3、5-OCH3、4-F、5-F、3-Cl、4-Cl、5-Cl、4-Br、5-Br或4,5-CH3。
步骤d、取上步产物D1-18(0.5mmol)于50mL圆底烧瓶中,加入10mL甲醇溶解,再加入NaOH固体(2.5mmol),用移液枪取30%的H2O2溶液(2.5mmol)逐滴加入到混合溶液中,40℃条件下反应48h,随后停止反应;取一个100mL烧杯,加入50mL冰水,然后将反应液逐滴加入其中,滴加稀盐酸,不停搅拌,同时监测溶液的pH值,保持在5-6之间,析出固体后抽滤、干燥、柱层析分离(乙酸乙酯:石油醚=1:3,v/v),得到产物F1-18。
本发明含有类黄酮的白藜芦醇类衍生物的制备方法之二,包括如下步骤:
步骤a、称取(E)-3,5-二甲氧基-4'-羟基苯乙烯(A,1mmol)于50mL圆底烧瓶中,加入15mL丙酮溶解,加入四丁基溴化铵(TBAB,1.2mmol)、无水K2CO3(1.2mmol),搅拌5min后加入溴代烷(1mmol),保持回流反应,TLC监测,反应完全后抽滤,干燥,经柱层析得B2-4。
其中B2-4的结构式为:
B2-4中R4′选自乙基、正丁基或苄基。
所述溴代烷的结构式为:R4′-Br,其中R4′选自乙基、正丁基或苄基。
步骤b、先向N,N-二甲基甲酰胺中加入B1-4,然后于冰浴中缓慢滴加三氯氧磷,B1-4与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析分离(二氯甲烷:石油醚=1:2,v/v),得到C1-4。
B1-4为B1、B2-4中的一种,其中B1的结构式为:
C1-4的结构式为:
步骤c、称取取代羟基苯乙酮(1mmol)、C1-4(1mmol)、吡咯烷(1mmol)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应36h,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D1-22。
D1-22的结构式为:
其中R3选自H、4-CH3、5-CH3、4,5-CH3、5-OCH3、4,5-OCH3、4-F、5-F、3-Cl、4-Cl、5-Cl、4-Br、5-Br。
步骤d、取上步产物D1-22(0.5mmol)和单质碘(0.005mmol)于反应管中,加入二甲基亚砜(1mL/mmol)溶解,130℃下反应4~6h,TLC监测反应,待反应完成后,将反应液逐滴加入装有冰水混合物的100mL的烧杯中搅拌,析出淡黄色固体,抽滤、干燥、通过柱层析分离(乙酸乙酯:石油醚=1:3,v/v),得到产物H1-22。
本发明含有类黄酮的白藜芦醇类衍生物的用途,是在制备具有抑制LPS刺激的RAW264.7释放NO作用的单胺氧化酶抑制剂中的应用。
通过生物活性测试结果表明本发明含有类黄酮的白藜芦醇类衍生物能够有效的抑制LPS刺激的RAW264.7释放NO。
具体实施方式
通过以下实施例进一步详细说明本发明,但应注意本发明的范围并不受这些实施例的任何限制。
实施例1:(E)-3-(2,4-二甲氧基-6-((E)-4-甲氧基苯乙烯基)苯基)-1-(2-羟基苯基)丙-2-烯-1-酮(F1)的制备
a、先向N,N-二甲基甲酰胺中加入白藜芦醇三甲醚(B1),然后于冰浴中缓慢滴加三氯氧磷,白藜芦醇三甲醚与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析(二氯甲烷:石油醚=1:2,v/v),分离得(E)-2,4-二甲氧基-6-(4-甲氧基苯乙烯)苯甲醛(C1)。
b、称取2-羟基苯乙酮(1mmol,132μL)、(E)-2,4-二甲氧基-6-(4-甲氧基苯乙烯)苯甲醛(C1,1mmol,298mg)、吡咯烷(1mmol,85μL)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应,TLC监控。36h后,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D1。产物为黄色固体粉末,收率84%,熔点:127-129℃。1H NMR(600MHz,CDCl3):δ13.06(s,1H),8.29(d,J=15.4Hz,1H),7.78(d,J=8.0Hz,1H),7.72(d,J=15.5Hz,1H),7.49(d,J=8.4Hz,2H),7.44(t,J=7.7Hz,1H),7.35(d,J=16.0Hz,1H),7.00(d,J=8.3Hz,1H),6.95(d,J=16.0Hz,1H),6.91(d,J=8.3Hz,2H),6.80(t,J=7.6Hz,1H),6.73(s,1H),6.45(s,1H),3.93(s,3H),3.91(s,3H),3.84(s,3H).13C NMR(151MHz,CDCl3):δ197.07(s),166.17(s),164.65(s),163.69(s),162.38(s),144.85(s),142.06(s),138.49(s),134.75(s),132.39(s),132.28(s),130.69(s),128.05(s),125.69(s),123.03(s),121.30(s),121.08(s),118.44(s),116.92(s),106.64(s),100.31(s),58.46(s),58.15(s),58.01(s).
c、取上步产物D1(0.5mmol,160mg)于50mL圆底烧瓶中,加入10mL甲醇溶解后,再加入NaOH固体(2.5mmol,200mg),用移液枪取30%的H2O2溶液(2.5mmol,140μL)逐滴加入到混合溶液中。40℃条件下反应48h,随后停止反应。取一个100mL烧杯,加入50mL冰水,然后将反应液逐滴加入其中,滴加稀盐酸,不停搅拌,同时监测溶液的pH值,保持在5-6之间,析出固体后抽滤、干燥、柱层析得到产物F1。产物为白色固体粉末,收率是76%,熔点230-232℃。1HNMR(600MHz,DMSO):δ8.85(s,1H),8.15(d,J=8.0Hz,1H),7.74(t,J=7.7Hz,1H),7.60(d,J=8.4Hz,1H),7.46(t,J=7.5Hz,1H),7.30(d,J=8.6Hz,2H),7.25(d,J=16.2Hz,1H),7.03(s,1H),6.84(d,J=8.6Hz,2H),6.74(d,J=16.2Hz,1H),6.61(s,1H),3.89(s,3H),3.72(t,J=20.0Hz,6H).13C NMR(151MHz,DMSO):δ175.66(s),164.97(s),162.31(s),161.96(s),158.47(s),148.85(s),143.43(s),141.68(s),136.50(s),133.97(s),132.35(s),131.01(s),128.08(s),127.54(s),125.75(s),125.28(s),121.55(s),117.30(s),114.78(s),104.04(s),100.93(s),59.01(s),58.66(s),58.19(s).MS(ESI):431.1483.(C26H22O6,[M+H]+).
实施例2:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-7-甲基-4H-苯并吡喃-4-酮(F2)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以4-甲基-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D2,再按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-7-甲基-4H-苯并吡喃-4-酮F2。F2为白色固体粉末,收率78%,熔点:210-213℃。1H NMR(600MHz,DMSO):δ8.77(s,1H),8.02(d,J=8.2Hz,1H),7.40(s,1H),7.32-7.23(m,4H),7.02(s,1H),6.84(d,J=8.6Hz,2H),6.71(d,J=16.2Hz,1H),6.60(s,1H),3.89(s,3H),3.71(t,J=14.1Hz,6H),2.42(s,3H).13C NMR(101MHz,DMSO):δ172.37(s),161.80(s),159.18(s),158.83(s),155.49(s),145.24(s),144.25(s),140.12(s),138.50(s),130.77(s),129.23(s),127.85(s),125.93(s),124.72(s),122.64(s),119.93(s),117.87(s),100.88(s),97.79(s),114.18(s),111.76(s),55.85(s),55.51(s),55.05(s),21.15(s).MS(ESI):445.1645.(C27H24O6,[M+H]+).
实施例3:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-6-甲基-4H-苯并吡喃-4-酮(F3)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以5-甲基-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D3,再按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-7-甲基-4H-苯并吡喃-4-酮F3。F3为白色固体粉末,收率44%,熔点:201-204℃。1H NMR(600MHz,DMSO):δ8.80(s,1H),7.93(s,1H),7.56(d,J=8.6Hz,1H),7.49(d,J=8.5Hz,1H),7.28(d,J=8.5Hz,2H),7.25(d,J=16.2Hz,1H),7.02(s,1H),6.84(d,J=8.3Hz,2H),6.69(d,J=16.2Hz,1H),6.60(s,1H),3.89(s,3H),3.70(d,J=13.1Hz,6H),2.44(s,3H).13C NMR(101MHz,CDCl3):δ172.94(s),162.46(s),159.59(s),159.29(s),154.69(s),144.74(s),139.83(s),139.54(s),134.80(s),134.32(s),131.18(s),129.63(s),128.04(s),124.57(s),123.31(s),121.01(s),118.44(s),114.09(s),111.35(s),101.26(s),98.00(s),56.03(s),55.73(s),55.43(s),20.98(s).MS(ESI):445.1642.(C27H24O6,[M+H]+).
实施例4:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮(F4)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以5-甲氧基-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D4,再按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮F4。F4为白色固体粉末,收率89%,熔点:188-191℃。1H NMR(600MHz,DMSO):δ8.81(s,1H),7.56(d,J=9.1Hz,1H),7.48(d,J=2.7Hz,1H),7.34(dd,J=9.1,2.7Hz,1H),7.29(d,J=8.4Hz,2H),7.25(d,J=16.2Hz,1H),7.02(s,1H),6.84(d,J=8.4Hz,2H),6.69(d,J=16.2Hz,1H),6.60(s,1H),3.88(d,J=8.5Hz,6H),3.70(d,J=14.7Hz,6H).13C NMR(101MHz,DMSO):δ172.09(s),161.82(s),159.19(s),158.83(s),155.84(s),150.32(s),145.61(s),139.86(s),138.53(s),130.79(s),129.22(s),127.83(s),123.18(s),122.70(s),122.63(s),120.05(s),114.18(s),111.75(s),103.96(s),100.92(s),97.80(s),55.86(s),55.69(s),55.51(s),55.05(s).MS(ESI):461.1591.(C27H24O7,[M+H]+).
实施例5:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氟-3-羟基-4H-苯并吡喃-4-酮(F5)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以4-氟-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D5,再按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氟-3-羟基-4H-苯并吡喃-4-酮F5。F5为白色固体粉末,收率63%,熔点:236-239℃。1H NMR(600MHz,DMSO):δ8.94(s,1H),8.20(dd,J=8.9,6.5Hz,1H),7.58(dd,J=9.7,2.1Hz,1H),7.37–7.34(m,1H),7.33(d,J=8.6Hz,2H),7.26(d,J=16.2Hz,1H),7.03(d,J=1.6Hz,1H),6.84(d,J=8.7Hz,2H),6.74(d,J=16.2Hz,1H),6.60(d,J=1.7Hz,1H),3.89(s,3H),3.71(d,J=13.5Hz,6H).13C NMR(101MHz,CDCl3):δ172.46(s),167.96(s),164.28(s),162.62(s),159.67(s),159.29(s),157.37(s),145.24(s),139.81(s),139.62(s),131.43(s),129.57(s),128.17(s),123.16(s),118.43(s),114.13(s),110.84(s),105.15(s),104.90(s),101.34(s),97.95(s),56.01(s),55.56(s),55.30(s).MS(ESI):449.1392.(C26H21FO6,[M+H]+).
实施例6:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-氟-3-羟基-4H-苯并吡喃-4-酮(F6)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以5-氟-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D6,再按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-氟-3-羟基-4H-苯并吡喃-4-酮F6。F6为白色固体粉末,收率68%,熔点:190-193℃。1H NMR(600MHz,DMSO):δ8.99(s,1H),7.80(dd,J=22.0,16.1Hz,1H),7.72(dd,J=8.9,3.7Hz,1H),7.64(t,J=7.1Hz,1H),7.32(d,J=8.3Hz,2H),7.26(d,J=16.2Hz,1H),7.01(d,J=26.2Hz,1H),6.82(t,J=16.7Hz,2H),6.72(d,J=16.2Hz,1H),6.61(s,1H),3.89(s,3H),3.70(d,J=15.6Hz,6H).13C NMR(101MHz,DMSO):δ171.91(s),161.93(s),159.20(s),158.84(s),157.16(s),151.85(s),146.32(s),140.04(s),138.63(s),130.92(s),129.21(s),127.95(s),123.16(s),122.56(s),121.74(s),121.20(s),114.14(s),111.44(s),109.12(s),100.95(s),97.78(s),55.88(s),55.52(s),55.05(s).MS(ESI):449.1392.(C26H21FO6,[M+H]+).
实施例7:(E)-8-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F7)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以3-氯-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D7,再按照实施例1从而得到目标化合物(E)-8-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F7。E7为白色固体粉末,收率55%,熔点:208-210℃。1H NMR(600MHz,DMSO):δ9.07(s,1H),8.11(d,J=8.0Hz,1H),7.92(d,J=7.7Hz,1H),7.45(t,J=7.9Hz,1H),7.34(d,J=8.5Hz,2H),7.27(d,J=16.2Hz,1H),7.04(s,1H),6.84(d,J=8.5Hz,2H),6.79(d,J=16.2Hz,1H),6.63(s,1H),3.90(s,3H),3.74(s,3H),3.70(s,3H).13C NMR(151MHz,DMSO):δ175.28(s),165.16(s),162.33(s),162.18(s),153.80(s),149.10(s),143.72(s),141.98(s),136.44(s),134.08(s),132.43(s),131.14(s),127.87(s),127.27(s),126.80(s),125.84(s),125.06(s),117.26(s),114.39(s),104.34(s),101.12(s),59.17(s),58.69(s),58.21(s).MS(ESI):465.1097.(C26H21ClO6,[M+H]+).
实施例8:(E)-7-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F8)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以4-氯-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D8,再按照实施例1从而得到目标化合物(E)-7-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F8。F8为白色固体粉末,收率48%,熔点:209-210℃。1H NMR(600MHz,DMSO):δ8.98(s,1H),8.14(d,J=8.7Hz,1H),7.82(d,J=1.5Hz,1H),7.50(dd,J=8.6,1.7Hz,1H),7.33(d,J=8.7Hz,2H),7.25(d,J=16.2Hz,1H),7.03(d,J=1.7Hz,1H),6.84(d,J=8.7Hz,2H),6.73(t,J=12.4Hz,1H),6.60(d,J=1.8Hz,1H),3.89(s,3H),3.71(d,J=13.0Hz,6H).13C NMR(101MHz,CDCl3):δ172.52(s),162.63(s),159.67(s),159.30(s),156.40(s),145.31(s),140.07(s),139.63(s),139.52(s),131.48(s),129.54(s),128.08(s),126.88(s),125.40(s),123.10(s),120.08(s),118.62(s),114.13(s),110.80(s),101.33(s),97.93(s),56.00(s),55.56(s),55.30(s).MS(ESI):465.1102.(C26H21ClO6,[M+H]+).
实施例9:(E)-6-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F9)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以5-氯-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D9,按照实施例1从而得到目标化合物(E)-6-氯-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F9。F9为白色固体粉末,收率60%,熔点:189-192℃。1H NMR(600MHz,CDCl3):δ8.27(s,1H),7.60(d,J=9.0Hz,1H),7.45(d,J=8.9Hz,1H),7.26(d,J=4.7Hz,3H),7.06(d,J=16.0Hz,1H),6.91(s,1H),6.80(d,J=8.2Hz,2H),6.77(d,J=16.1Hz,1H),6.50(s,1H),3.93(s,3H),3.78(d,J=6.5Hz,6H).13C NMR(101MHz,CDCl3):δ172.35(s),162.65(s),159.68(s),159.27(s),154.65(s),145.45(s),140.02(s),139.63(s),133.60(s),131.45(s),130.34(s),129.51(s),128.04(s),124.74(s),123.08(s),122.35(s),120.41(s),114.13(s),110.78(s),101.36(s),97.93(s),56.01(s),55.57(s),55.31(s).MS(ESI):465.1101.(C26H21ClO6,[M+H]+).
实施例10:(E)-7-溴-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F10)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以4-溴-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D10,按照实施例1从而得到目标化合物(E)-7-溴-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F10。F10为白色固体粉末,收率76%,熔点:202-205℃。1H NMR(600MHz,DMSO):δ9.03(s,1H),8.05(d,J=8.6Hz,1H),7.94(d,J=1.3Hz,1H),7.63(dd,J=8.6,1.1Hz,1H),7.33(d,J=8.6Hz,2H),7.25(d,J=16.2Hz,1H),7.01(d,J=1.5Hz,1H),6.83(d,J=8.6Hz,2H),6.73(d,J=16.2Hz,1H),6.59(d,J=1.6Hz,1H),3.88(s,3H),3.70(d,J=11.5Hz,6H).13C NMR(101MHz,CDCl3):δ172.60(s),162.64(s),159.68(s),159.30(s),156.34(s),145.17(s),140.09(s),139.63(s),131.49(s),129.54(s),128.08(s),127.76(s),126.89(s),123.09(s),121.71(s),120.41(s),114.13(s),110.78(s),101.32(s),97.93(s),56.01(s),55.56(s),55.31(s).MS(ESI):509.0590.(C26H21BrO6,[M+H]+).
实施例11:(E)-6-溴-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F11)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以5-溴-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D11,按照实施例1从而得到目标化合物(E)-6-溴-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F11。F11为白色固体粉末,收率82%,熔点:201-204℃。1H NMR(600MHz,DMSO):δ9.08(s,1H),8.22(d,J=2.4Hz,1H),7.88(dd,J=8.9,2.4Hz,1H),7.61(d,J=8.9Hz,1H),7.33(d,J=8.7Hz,2H),7.26(d,J=16.2Hz,1H),7.03(d,J=1.7Hz,1H),6.84(d,J=8.7Hz,2H),6.72(d,J=16.2Hz,1H),6.60(d,J=1.8Hz,1H),3.89(s,3H),3.70(d,J=11.1Hz,6H).13C NMR(101MHz,CDCl3):δ171.92(s),162.65(s),159.68(s),159.28(s),155.08(s),145.54(s),140.10(s),139.63(s),136.28(s),131.45(s),129.51(s),128.04(s),123.07(s),122.89(s),120.62(s),117.74(s),114.13(s),110.79(s),101.36(s),97.93(s),56.01(s),55.57(s),55.31(s).MS(ESI):511.0572.(C26H21BrO6,[M+H]+).
实施例12:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-6,7-二甲基-4H-苯并吡喃-4-酮(F12)的制备
本实施例的制备方法同实施例1,不同的是步骤b中以4,5-甲基-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D12,按照实施例1从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-3-羟基-6,7-二甲基-4H-苯并吡喃-4-酮F12。F12为白色固体粉末,收率66%,熔点:214-217℃。1H NMR(600MHz,CDCl3):δ8.03(s,1H),7.27(d,J=6.3Hz,1H),7.26(s,1H),7.25(s,2H),7.06(d,J=16.0Hz,1H),6.91(s,1H),6.82–6.77(m,3H),6.50(d,J=1.4Hz,1H),3.92(d,J=8.1Hz,3H),3.77(d,J=3.9Hz,6H),2.39(d,J=7.5Hz,6H).13C NMR(101MHz,CDCl3):δ172.88(s),162.39(s),159.57(s),159.31(s),155.16(s),144.27(s),144.00(s),139.68(s),139.50(s),133.84(s),131.09(s),129.67(s),128.05(s),124.83(s),123.36(s),119.38(s),118.67(s),114.08(s),111.52(s),101.20(s),98.00(s),56.02(s),55.54(s),55.29(s),20.55(s),19.39(s).MS(ESI):459.1803.(C28H26O6,[M+H]+).
实施例13:(E)-2-(2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯基)-3-羟基-4H-苯并吡喃-4-酮(F13)的制备
a、称取(E)-3,5-二甲氧基-4'-羟基苯乙烯(A,1mmol,256mg)于50mL圆底烧瓶中,加入15mL丙酮溶解,加入四丁基溴化铵(TBAB,1.2mmol,386mg)、无水K2CO3(1.2mmol,165mg),搅拌5min后加入溴乙烷(1mmol,109mg),保持回流反应,TLC监测,反应完全后抽滤,干燥,经柱层析(乙酸乙酯:石油醚=1:5),得(E)-1-(4-乙氧基苯乙烯基)-3,5-二甲氧基苯(B2)。1H NMR(600MHz,CDCl3):δ7.44(d,J=8.5Hz,2H),7.05(d,J=16.2Hz,1H),6.93-6.88(m,3H),6.66(s,2H),6.39(s,1H),4.06(q,J=7.0Hz,2H),3.83(s,6H),1.43(t,J=7.0Hz,2H).13C NMR(151MHz,CDCl3):δ163.65(s),161.46(s),142.42(s),132.46(s),131.47(s),130.44(s),129.14(s),117.37(s),107.03(s),102.29(s),66.16(s),57.99(s),17.47(s).
b、先向N,N-二甲基甲酰胺中加入(E)-1-(4-乙氧基苯乙烯基)-3,5-二甲氧基苯(B2),然后于冰浴中缓慢滴加三氯氧磷,B2与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析(二氯甲烷:石油醚=1:2),分离得(E)-2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯甲醛(C13)。
c、称取2-羟基苯乙酮(1mmol)、(E)-2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯甲醛(C13)(1mmol)、吡咯烷(1mmol)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应,TLC监控。36h后,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D13。产物为黄色固体粉末,收率87%,熔点:155-157℃。1H NMR(600MHz,DMSO):δ12.47(s,1H),8.11(d,J=15.5Hz,1H),7.84(d,J=7.4Hz,1H),7.73(d,J=15.5Hz,1H),7.54(d,J=8.6Hz,2H),7.50(t,J=7.7Hz,1H),7.38(d,J=16.1Hz,1H),7.07(d,J=16.0Hz,1H),6.96(d,J=8.3Hz,1H),6.93(d,J=8.6Hz,2H),6.89(t,J=7.5Hz,1H),6.82(d,J=2.0Hz,1H),6.61(d,J=1.9Hz,1H),4.04(q,J=6.9Hz,2H),3.93(s,3H),3.88(s,3H),1.32(t,J=7.0Hz,3H).13CNMR(101MHz,DMSO):δ193.70(s),162.03(s),161.53(s),161.05(s),158.62(s),141.99(s),138.70(s),135.80(s),132.42(s),129.88(s),129.22(s),128.15(s),124.23(s),122.98(s),121.04(s),119.14(s),117.76(s),114.65(s),114.31(s),104.30(s),97.77(s),63.07(s),56.04(s),55.55(s),14.59(s).
d、取上步产物D13(0.5mmol)于50mL圆底烧瓶中,加入10mL甲醇溶解后,再加入NaOH固体(2.5mmol,200mg),用移液枪取30%的H2O2溶液(2.5mmol,140μL)逐滴加入到混合溶液中。40℃条件下反应48h,随后停止反应。取一个100mL烧杯,加入50mL冰水,然后将反应液逐滴加入其中,滴加稀盐酸,不停搅拌,同时监测溶液的pH值,保持在5-6之间,析出固体后抽滤、干燥、柱层析得到产物F13。F13为白色固体粉末,收率77%,熔点:244-247℃。1HNMR(600MHz,CDCl3):δ8.31(d,J=7.9Hz,1H),7.66(dd,J=11.4,4.2Hz,1H),7.50(d,J=8.5Hz,1H),7.43(t,J=7.5Hz,1H),7.26(s,1H),7.24(s,1H),7.07(d,J=16.1Hz,1H),6.92(d,J=2.0Hz,1H),6.81(d,J=16.2Hz,1H),6.78(d,J=8.7Hz,2H),6.51(d,J=2.0Hz,1H),6.29(s,1H),3.99(q,J=7.0Hz,2H),3.93(s,3H),3.79(s,3H),1.38(t,J=7.0Hz,3H).13CNMR(101MHz,CDCl3):δ173.15(s),162.51(s),159.31(s),159.01(s),156.42(s),145.02(s),139.93(s),139.63(s),133.32(s),131.35(s),129.45(s),128.06(s),125.54(s),124.38(s),123.14(s),121.55(s),118.69(s),114.64(s),111.22(s),101.30(s),97.96(s),63.47(s),56.02(s),55.55(s),14.79(s).MS(ESI):445.1642.(C27H24O6,[M+H]+).
实施例14:(E)-2-(2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮(F14)的制备
本实施例的制备方法同实施例13,不同的是步骤c中以5-甲氧基-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D14,按照实施例13从而得到目标化合物(E)-2-(2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮F14。F14为白色固体粉末,收率81%,熔点:220-223℃。1H NMR(600MHz,CDCl3):δ7.63(d,J=3.0Hz,1H),7.44-7.42(m,1H),7.27(dd,J=9.2,3.1Hz,1H),7.24(d,J=8.7Hz,2H),7.05(d,J=16.1Hz,1H),6.91(d,J=2.1Hz,1H),6.78(dd,J=12.4,3.6Hz,3H),6.50(d,J=2.1Hz,1H),6.28(s,1H),3.99(q,J=7.0Hz,2H),3.93(d,J=6.1Hz,6H),3.78(s,3H),1.38(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ172.71(s),162.47(s),159.29(s),159.00(s),156.41(s),151.58(s),144.80(s),139.62(s),139.54(s),131.28(s),129.44,128.03(s),124.15(s),123.14(s),121.94(s),120.16(s),114.63(s),111.27(s),103.82(s),101.26(s),97.95(s),63.46(s),56.02(s),56.00(s),55.55(s),14.79(s).MS(ESI):475.1747.(C28H26O7,[M+H]+).
实施例15:(E)-2-(2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯基)-3-羟基-6-溴-4H-苯并吡喃-4-酮(F15)的制备
本实施例的制备方法同实施例13,不同的是步骤a中以5-溴-2-羟基苯乙酮替换2-羟基苯乙酮,得到中间体D15,按照实施例13从而得到目标化合物(E)-2-(2-(4-乙氧基苯乙烯基)-4,6-二甲氧基苯基)-3-羟基-6-溴-4H-苯并吡喃-4-酮F15。F15为白色固体粉末,收率78%,熔点:200-205℃。1H NMR(600MHz,CDCl3):δ8.44(d,J=2.4Hz,1H),7.73(dd,J=9.0,2.4Hz,1H),7.39(d,J=8.9Hz,1H),7.24(d,J=9.0Hz,2H),7.06(d,J=16.0Hz,1H),6.90(d,J=2.1Hz,1H),6.79(d,J=8.7Hz,2H),6.76(d,J=16.1Hz,1H),6.50(d,J=2.1Hz,1H),6.22(s,1H),4.00(q,J=7.0Hz,2H),3.93(s,3H),3.78(s,3H),1.38(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ171.91(s),162.65(s),159.27(s),159.08(s),155.09(s),145.48(s),140.05(s),139.67(s),136.28(s),131.53(s),129.33(s),128.04(s),127.98(s),122.91(s),122.86(s),120.63(s),117.74(s),114.66(s),110.75(s),101.35(s),97.90(s),63.49(s),56.01(s),55.57(s),14.78(s).MS(ESI):525.0729.(C27H23BrO6,[M+H]+).
实施例16:(E)-3-(2,4-二甲氧基-6-((E)-4-丁氧基氧基苯乙烯基)苯基)-1-(2-羟基苯基)丙-2-烯-1-酮(F16)的制备
本实施例的制备方法同实施例13,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体B3,按照实施例13从而得到目标化合物(E)-3-(2,4-二甲氧基-6-((E)-4-丁氧基氧基苯乙烯基)苯基)-1-(2-羟基苯基)丙-2-烯-1-酮F16。F16为淡黄色固体粉末,收率89%,熔点:195-201℃。1H NMR(600MHz,CDCl3):δ8.64(d,J=2.4Hz,1H),7.83(d,J=9.0,2.4Hz,1H),7.59(d,J=8.9Hz,1H),7.34(s 2H),7.06(d,J=16.0Hz,1H),6.97(d,J=2.1Hz,1H),6.79(d,J=8.7Hz,2H),6.66(d,J=16.1Hz,1H),6.50(d,J=2.1Hz,1H),6.22(s,1H),4.00(q,J=7.0Hz,2H),3.93(s,3H),3.78(d,J=6.2,2H),2.86(d,J=9.8 2H),2.78(d,J=9.02H),1.38(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ171.91(s),162.65(s),159.27(s),159.08(s),155.09(s),145.48(s),140.05(s),139.67(s),136.28(s),131.53(s),129.33(s),128.04(s),127.98(s),122.91(s),122.86(s),120.63(s),117.74(s),114.66(s),110.75(s),101.35(s),97.90(s),63.49(s),56.01(s),55.57(s),53.12(s),49.57(s),14.78(s).MS(ESI):472.1929.(C29H28O6,[M+H]+).
实施例17:(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮(F17)的制备
本实施例的制备方法同实施例14,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体B3,按照实施例13从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-3-羟基-6-甲氧基-4H-苯并吡喃-4-酮F17。F17为淡黄色固体粉末,收率79%,熔点:208-209℃。1H NMR(600MHz,CDCl3):δ8.77(d,J=2.4Hz,1H),7.90(d,J=8.6,2.4Hz,1H),7.68(d,J=6.0Hz,1H),7.56(s 2H),7.11(d,J=16.0Hz,1H),6.92(d,J=2.1Hz,1H),6.61(d,J=8.7Hz,2H),6.54(d,J=16.1Hz,1H),6.49(d,J=2.1Hz,1H),6.34(s,1H),4.56(q,J=7.0Hz,2H),3.99(s,3H),3.45(s,3H),3.18(d,J=6.2,2H),2.87(d,J=9.8 2H),2.75(d,J=9.0 2H),1.54(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ176.91(s),165.65(s),159.87(s),159.18(s),155.29(s),144.98(s),140.75(s),139.87(s),137.28(s),133.13(s),129.83(s),128.74(s),126.98(s),123.41(s),122.86(s),121.63(s),118.54(s),114.86(s),110.05(s),101.25(s),98.90(s),64.49(s),56.51(s),52.57(s),50.12(s),48.02(s),44.57(s),14.78(s).MS(ESI):502.2011.(C30H30O7,[M+H]+).
实施例18:(E)-6-溴-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮(F18)的制备
本实施例的制备方法同实施例15,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体E16,按照实施例13从而得到目标化合物(E)-6-溴-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-3-羟基-4H-苯并吡喃-4-酮F18。F18为淡黄色固体粉末,收率75%,熔点:210-211℃。1H NMR(600MHz,CDCl3):δ8.82(d,J=3.2Hz,1H),8.09(d,J=6.6,2.4Hz,1H),7.89(d,J=8.2Hz,1H),7.78(s,2H),7.52(d,J=16.0Hz,1H),7.08(d,J=3.4Hz,1H),6.78(d,J=8.0Hz,2H),6.67(d,J=16.1Hz,1H),6.54(d,J=2.1Hz,1H),6.42(s,1H),4.88(q,J=7.0Hz,2H),3.89(s,3H),3.56(s,3H),2.87(d,J=9.8 2H),2.70(d,J=9.0 2H),1.67(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ181.91(s),162.65(s),157.27(s),156.08(s),155.09(s),140.48(s),139.05(s),138.67(s),137.28(s),130.53(s),128.63(s),128.94(s),127.08(s),121.91(s),120.86(s),120.13(s),118.74(s),115.16(s),110.65(s),105.35(s),98.90(s),66.19(s),57.11(s),55.27(s),53.62(s),52.12(s),15.28(s).MS(ESI):551.0829.(C29H27BrO6,[M+H]+).
实施例19:(E)-3-(2,4-二甲氧基-6-((E)-4-甲氧基氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮(H1)的制备
a、先向N,N-二甲基甲酰胺中加入B1,然后于冰浴中缓慢滴加三氯氧磷,B1与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析(二氯甲烷:石油醚=1:2),分离得C1。
b、称取取代羟基苯乙酮(1mmol)、C1(1mmol)、吡咯烷(1mmol)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应36h后,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D1。
c、取上步中间体产物D1(0.5mmol)和单质碘(0.005mmol)于反应管中,加入二甲基亚砜(1mL/mmol)溶解后。130℃条件下反应4~6h,TLC监测反应,待反应完成后,将反应液逐滴加入装有冰水混合物的100mL的烧杯中搅拌,析出淡黄色固体,抽滤、干燥、通过柱层析(乙酸乙酯:石油醚=1:3)得到产物H1。H1为白色固体粉末,收率90%,熔点:193-197℃。1HNMR(600MHz,CDCl3):δ8.27(d,J=8.2Hz,1H),7.65(t,J=7.8Hz,1H),7.28(d,J=8.4Hz,1H),7.02(d,J=16.2Hz,1H),6.89(d,J=16.2Hz,1H),6.87(s,1H),6.80(d,J=7.2Hz,2H),6.42(d,J=7.2Hz,H),3.89(s,3H),3.72(t,J=5.2Hz,6H).13C NMR(151MHz,CDCl3):δ173.36(s),163.97(s),162.31(s),160.96(s),157.47(s),146.85(s),142.56(s),141.89(s),135.75(s),133.61(s),132.11(s),130.51(s),127.14(s),127.04(s),124.85(s),128.08(s),120.15(s),115.78(s),113.98(s),103.94(s),100.63(s),57.61(s),57.46(s),56.89(s).MS(ESI):415.1440.(C26H23O5,[M+H]+)
实施例20:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-甲基-4H-苯并吡喃-4-酮(H2)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以4-甲基-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D2,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-甲基-4H-苯并吡喃-4-酮H2。H2为白色固体粉末,收率61%,熔点:186-189℃。1H NMR(600MHz,CDCl3):δ8.66(d,J=8.2Hz,1H),7.56(s,1H),7.32(d,J=6.2,2H),7.23(s,1H),7.02(s,2H),6.91(d,J=16.1Hz,1H),6.84(d,J=8.6Hz,2H),6.71(d,J=16.2Hz,1H),6.60(s,1H),3.91(s,3H),3.87(t,J=14.1Hz,6H),2.61(s,3H).13CNMR(101MHz,CDCl3):δ175.27(s),162.78(s),160.29(s),159.73(s),156.29(s),147.14(s),145.65(s),142.22(s),139.47(s),131.87(s),130.13(s),128.89(s),126.93(s),124.89(s),123.64(s),120.73(s),118.87(s),99.87(s),98.79(s),113.18(s),110.76(s),56.85(s),55.81(s),55.95(s),20.95(s).MS(ESI):429.1697.(C27H25O5,[M+H]+)
实施例21:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-甲基-4H-苯并吡喃-4-酮(H3)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以5-甲基-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D3,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-甲基-4H-苯并吡喃-4-酮H3。H3为白色固体粉末,收率59%,熔点:187-192℃。1H NMR(600MHz,CDCl3):δ8.23(s,1H),7.78(d,J=8.6Hz,2H),7.56(d,J=8.5Hz,1H),7.27(d,J=8.5Hz,2H),7.20(d,J=16.2Hz,1H),7.11(s,1H),6.89(d,J=7.6Hz,2H),6.71(d,J=16.2Hz,1H),6.65(s,1H),3.88(s,3H),3.65(d,J=13.1Hz,6H),2.64(s,3H).13CNMR(101MHz,CDCl3):δ168.94(s),161.46(s),158.79(s),156.89(s),154.56(s),143.94(s),136.73(s),135.54(s),134.79(s),134.12(s),130.98(s),128.93(s),128.14(s),125.17(s),122.81(s),120.91(s),117.94(s),113.89(s),110.95(s),100.96(s),98.80(s),58.03(s),54.73(s),52.43(s),22.98(s).MS(ESI):429.1694(C27H25O5,[M+H]+)
实施例22:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6,7-二甲基-4H-苯并吡喃-4-酮(H4)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以4,5-二甲基-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D4,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6,7-二甲基-4H-苯并吡喃-4-酮H4。H4为白色固体粉末,收率72%,熔点:203-207℃。1H NMR(600MHz,CDCl3):δ8.03(s,1H),7.32(d,J=6.3Hz,1H),7.27(s,1H),7.26(s,2H),7.08(d,J=16.0Hz,1H),6.93(s,1H),6.89–6.78(m,3H),6.61(d,J=6.7Hz,1H),3.89(s,3H),3.78(d,J=3.9Hz,6H),2.41(d,J=7.5Hz,6H).13C NMR(101MHz,CDCl3):δ179.68(s),163.59(s),158.97(s),157.81(s),156.16(s),145.27(s),145.00(s),138.98(s),137.50(s),135.64(s),130.29(s),128.97(s),128.15(s),123.83(s),122.66(s),109.98(s),107.67(s),106.88(s),103.62(s),101.30(s),99.00(s),57.02(s),56.54(s),56.19(s),21.65(s),20.19(s).MS(ESI):443.1854.(C28H27O5,[M+H]+)
实施例23:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮(H5)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以5-甲氧基-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D5,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮H5。H5为淡黄色固体粉末,收率66%,熔点:168-170℃。1H NMR(600MHz,DMSO):δ8.30(s,1H),7.32(d,J=9.1Hz,1H),7.11(d,J=2.7Hz,1H),7.04(dd,J=7.9,2.7Hz,1H),6.98(d,J=8.4Hz,2H),6.90(d,J=16.2Hz,1H),6.81(s,1H),6.75(d,J=6.8Hz,2H),6.68(d,J=16.1Hz,1H),6.57(s,1H),3.54(d,J=8.5Hz,6H),3.41(d,J=14.7Hz,6H).13C NMR(101MHz,DMSO):δ178.09(s),164.72(s),161.29(s),159.73(s),156.44(s),149.82(s),146.91(s),141.76(s),140.53(s),131.79(s),129.02(s),125.83(s),122.48(s),120.70(s),117.63(s),115.05(s),114.28(s),112.05(s),100.96(s),98.92(s),96.80(s),57.86(s),55.09(s),53.51(s),45.05(s).MS(ESI):445.1650.(C27H25O6,[M+H]+)
实施例24:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6,7-二甲氧基-4H-苯并吡喃-4-酮(H6)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以2-羟基-4,5-二甲氧基苯乙酮代替2-羟基苯乙酮,得到中间体D6,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6,7-二甲氧基-4H-苯并吡喃-4-酮H6。H6为淡黄色固体粉末,收率42%,熔点:188-192℃。1H NMR(600MHz,DMSO):δ8.09(s,1H),7.62(d,J=8.2Hz,1H),7.12(d,J=6.2Hz,1H),6.78(d,J=8.4Hz,2H),6.90(d,J=16.2Hz,1H),6.79(s,1H),6.58(d,J=6.8Hz,2H),6.43(d,J=16.1Hz,1H),6.37(s,1H),3.78(s,3H),3.54(d,J=8.5Hz,6H),3.41(d,J=14.7Hz,6H).13C NMR(101MHz,DMSO):δ178.09(s),164.72(s),161.29(s),159.73(s),156.44(s),149.82(s),146.91(s),141.76(s),140.53(s),131.79(s),129.02(s),125.83(s),122.48(s),120.70(s),117.63(s),115.05(s),114.28(s),112.05(s),100.96(s),98.92(s),96.80(s),57.86(s),55.09(s),53.51(s),42.05(s),39.67(s).MS(ESI):475.1760.(C28H27O7,[M+H]+)
实施例25:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氟-4H-苯并吡喃-4-酮(H7)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以4-氟-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D7,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氟-4H-苯并吡喃-4-酮H7。H7为淡黄色固体粉末,收率78%,熔点:186-191℃。1H NMR(600MHz,DMSO):δ8.34(d,J=5.6,1H),7.80(s,1H),7.31(dd,J=8.9,3.7Hz,1H),7.01(t,J=6.9Hz,1H),6.91(d,J=6.3Hz,2H),6.86(d,J=16.2Hz,1H),6.71(s,1H),6.52(t,J=16.0Hz,2H),6.41(d,J=6,3Hz,1H),6.21(s,1H),3.75(s,3H),3.62(d,J=15.6Hz,6H).13C NMR(101MHz,DMSO):δ185.91(s),174.63(s),165.87(s),155.84(s),150.16(s),147.85(s),145.32(s),139.04(s),137.53(s),129.72(s),127.91(s),125.95(s),123.96(s),123.56(s),120.94(s),118.90(s),115.64(s),113.64(s),108.12(s),102.95(s),98.70(s),53.88(s),50.52(s),45.65(s).MS(ESI):433.1449.(C26H22FO5,[M+H]+)
实施例26:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-氟-4H-苯并吡喃-4-酮(H8)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以5-氟-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D8,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氟-4H-苯并吡喃-4-酮H8。H8为白色固体粉末,收率59%,熔点:216-220℃。1H NMR(600MHz,DMSO):δ8.39d,J=6.3 1H),7.96(t,J=8.3,16.1Hz,1H),7.72(dd,J=8.9,3.7Hz,1H),7.64(t,J=7.1Hz,1H),7.32(d,J=8.3Hz,2H),7.26(d,J=16.2Hz,1H),7.01(d,J=26.2Hz,1H),6.82(t,J=16.7Hz,2H),6.72(d,J=16.2Hz,1H),6.61(s,1H),3.89(s,3H),3.70(d,J=15.6Hz,6H).13C NMR(101MHz,DMSO):δ171.91(s),161.93(s),159.20(s),158.84(s),157.16(s),151.85(s),146.32(s),140.04(s),138.63(s),130.92(s),129.21(s),127.95(s),123.16(s),122.56(s),121.74(s),121.20(s),114.14(s),111.44(s),109.12(s),100.95(s),97.78(s),55.88(s),55.52(s),55.05(s).MS(ESI):433.1441.(C26H22FO5,[M+H]+)
实施例27:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-8-氯-4H-苯并吡喃-4-酮(H9)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以3-氯-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D9,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-8-氯-4H-苯并吡喃-4-酮H9。H9为白色固体粉末,收率58%,熔点:231-234℃。1H NMR(600MHz,DMSO):δ8.45d,J=6.3 1H),7.97(d,J=8.3,16.1Hz,1H),7.66(d,J=8.3,,1H),7.62(t,J=7.1Hz,1H),7.42(d,J=3.2Hz,2H),7.43(d,J=16.2Hz,1H),7.23(d,J=6.1Hz,1H),6.83(d,J=16.7Hz,2H),6.70(s,1H),6.59(s,1H),3.78(s,3H),3.68(d,J=8.4Hz,6H).13C NMR(101MHz,DMSO):δ182.91(s),167.63(s),160.16(s),159.864(s),158.06(s),152.75(s),148.02(s),141.24(s),139.53(s),131.52(s),128.91(s),128.05(s),122.16(s),121.56(s),120.74(s),120.20(s),115.14(s),112.14(s),108.62(s),100.35(s),96.78(s),57.12(s),54.82(s),52.05(s).MS(ESI):449.1147.(C26H22ClO5,[M+H]+)
实施例28:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氯-4H-苯并吡喃-4-酮(H10)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以4-氯-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D10,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-氯-4H-苯并吡喃-4-酮H10。H10为白色固体粉末,收率68%,熔点:221-225℃。1H NMR(600MHz,CDCl3):δ8.23d,J=7.2 1H),7.88(d,J=11.3Hz,1H),7.64(s1H),7.54(d,J=6.2Hz,1H),7.28(d,J=8.3Hz,2H),7.18(d,J=16.1Hz,1H),7.09(d,J=6.1Hz,2H),6.88(d,J=16.0Hz,1H),6.45(s,1H),6.33(s,1H),3.89(s,3H),3.59(s,3H),3.45(s,3H).13C NMR(101MHz,CDCl3):δ187.51(s),175.63(s),168.26(s),159.84(s),158.16(s),156.15(s),149.12(s),145.14(s),140.43(s),133.62(s),129.91(s),128.25(s),122.46(s),120.86(s),119.74(s),118.20(s),115.64(s),112.04(s),109.62(s),99.35(s),95.78(s),58.12(s),52.82(s),50.05(s).MS(ESI):471.0970.(C26H21ClO5Na,[M+Na]+)
实施例29:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-氯-4H-苯并吡喃-4-酮(H11)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以5-氯-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D11,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-氯-4H-苯并吡喃-4-酮H11。H11为白色固体粉末,收率71%,熔点:227-229℃。1H NMR(600MHz,CDCl3):δ8.33d,J=5.6 1H),7.67(d,J=8.3Hz,1H),7.77(s 1H),7.68(d,J=3.5Hz,1H),7.34(d,J=6.8Hz,2H),7.23(d,J=16.1Hz,1H),7.11(s,2H),6.56(d,J=16.0Hz,1H),6.23(s,1H),6.15(s,1H),3.67(s,3H),3.45(s,3H),3.34(s,3H).13C NMR(101MHz,CDCl3):δ179.51(s),170.73(s),168.66(s),160.24(s),158.56(s),154.65(s),148.12(s),146.34(s),137.73(s),134.62(s),128.93(s),127.85(s),124.46(s),119.86(s),113.84(s),110.78(s),108.64(s),100.04(s),98.62(s),78.35(s),74.78(s),46.88(s),45.82(s),41.65(s).MS(ESI):471.0970.(C26H21ClO5Na,[M+Na]+)
实施例30:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-溴-4H-苯并吡喃-4-酮(H12)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以4-溴-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D12,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-7-溴-4H-苯并吡喃-4-酮H12。H12为白色固体粉末,收率75%,熔点:219-220℃。1H NMR(600MHz,CDCl3):δ8.13(s,1H),7.87(d,J=6.3Hz,1H),7.83(s,1H),7.57(d,J=8.0Hz,1H),7.34(s,2H),7.13(d,J=16.1Hz,1H),7.09(s,2H),6.76(d,J=16.0Hz,1H),6.03(s,1H),5.98(s,1H),3.71(s,3H),3.56(s,3H),3.22(s,3H).13C NMR(101MHz,CDCl3):δ181.51(s),172.87(s),169.16(s),161.34(s),159.46(s),154.35(s),150.32(s),147.64(s),134.73(s),130.12(s),128.23(s),126.55(s),124.36(s),118.86(s),113.54(s),111.78(s),109.74(s),101.02(s),99.32(s),86.35(s),79.28(s),56.88(s),55.12(s),40.25(s).MS(ESI):515.0465.(C26H21BrO5Na,[M+Na]+)
实施例31:(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮(H13)的制备
本实施例的制备方法同实施例19,不同的是步骤b中以5-溴-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D13,按照实施例19从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-甲氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮H13。H13为白色固体粉末,收率88%,熔点:225-229℃。1H NMR(600MHz,CDCl3):δ8.33(s,1H),7.92(d,J=3.2Hz,1H),7.46(s,1H),7.29(d,J=11.2Hz,1H),7.10(s,2H),6.71(d,J=16.1Hz,1H),6.67(s,2H),6.36(d,J=16.0Hz,1H),6.02(s,1H),5.89(s,1H),3.66(s,3H),3.36(s,3H),3.20(s,3H).13C NMR(101MHz,CDCl3):δ180.51(s),176.87(s),162.96(s),160.34(s),158.96(s),154.15(s),151.32(s),148.34(s),136.73(s),131.12(s),129.53(s),126.65(s),125.16(s),119.86(s),113.44(s),110.78(s),106.74(s),101.32(s),98.32(s),85.35(s),77.28(s),55.84(s),53.42(s),50.25(s).MS(ESI):515.0465.(C26H21BrO5Na,[M+Na]+)
实施例32:(E)-3-(2,4-二甲氧基-6-((E)-4-乙氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮(H14)的制备
a、称取(E)-3,5-二甲氧基-4'-羟基苯乙烯(A,1mmol)于50mL圆底烧瓶中,加入15mL丙酮溶解,加入四丁基溴化铵(TBAB,1.2mmol)、无水K2CO3(1.2mmol),搅拌5min后加入溴代乙烷(1mmol),保持回流反应,TLC监测,反应完全后抽滤,干燥,经柱层析得B2。
b、先向N,N-二甲基甲酰胺中加入B1,然后于冰浴中缓慢滴加三氯氧磷,B2与三氯氧磷的摩尔比为1:1,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,冰水与乙酸乙酯的体积比为5:1,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析(二氯甲烷:石油醚=1:2),分离得C2。
c、称取2-羟基苯乙酮(1mmol)、C2(1mmol)、吡咯烷(1mmol)于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应36h后,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D2。
d、取上步产物中间体产物D2(0.5mmol)和单质碘(0.005mmol)于反应管中,加入二甲基亚砜(1mL/mmol)溶解后。130℃条件下反应4~6h,TLC监测反应,待反应完成后,将反应液逐滴加入装有冰水混合物的100mL的烧杯中搅拌,析出淡黄色固体,抽滤、干燥、通过柱层析(乙酸乙酯:石油醚=1:3)得到产物H14。H14为白色固体粉末,收率93%,熔点:178-180℃。1H NMR(600MHz,CDCl3):δ8.13(d,J=3.2Hz,1H),7.96(s,1H),7.56(s,1H),7.32(d,J=10.2Hz,1H),7.15(s,2H),6.82(d,J=16.1Hz,1H),6.56(s,2H),6.42(d,J=16.1Hz,1H),6.11(s,1H),5.92(s,1H),3.56(s,3H),3.23(s,3H),3.01(dd,2H),1.58(t,J=3.2Hz 3H).13C NMR(101MHz,CDCl3):δ181.53(s),174.57(s),163.46(s),161.24(s),159.74(s),153.45(s),150.46(s),149.20(s),137.93(s),130.56(s),128.78(s),125.93(s),123.59(s),118.05(s),111.97(s),109.64(s),106.89(s),100.98(s),96.83(s),84.96(s),74.95(s),54.43(s),52.34(s),50.29(s),42.89(s)MS(ESI):451.1516.(C27H24O5Na,[M+Na]+)
实施例33:(E)-2-(2,4-二甲氧基-6-(4-乙氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮(H15)的制备
本实施例的制备方法同实施例32,不同的是步骤b中以5-甲氧基-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D15,按照实施例30从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-乙氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮H15。H15为白色固体粉末,收率83%,熔点:167-169℃。1H NMR(600MHz,CDCl3):δ8.03(d,J=3.1Hz,1H),7.86(s,1H),7.55(s,1H),7.31(d,J=8.2Hz,1H),7.18(s,2H),6.80(d,J=16.1Hz,1H),6.61(s,2H),6.51(d,J=16.1Hz,1H),6.34(s,1H),6.21(s,1H),3.53(d,J=3.2Hz 6H),3.23(s,3H),3.01(dd,2H),1.58(t,J=3.2Hz,3H).13C NMR(101MHz,CDCl3):δ180.24(s),175.23(s),165.85(s),161.97(s),149.74(s),143.45(s),139.56(s),128.97(s),126.43(s),124.56(s),120.78(s),118.93(s),113.59(s),107.05(s),102.97(s),100.64(s),98.89(s),86.98(s),84.83(s),80.96(s),67.95(s),45.43(s),42.34(s),40.89(s),40.09(s),35.27(s).MS(ESI):481.1622.(C28H26O6Na,[M+Na]+)。
实施例34:(E)-2-(2,4-二甲氧基-6-(4-乙氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮(H16)的制备
本实施例的制备方法同实施例32,不同的是步骤b中以5-溴-2-羟基苯乙酮代替2-羟基苯乙酮,得到中间体D16,按照实施例30从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-乙氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮H16。H16为白色固体粉末,收率88%,熔点:243-244℃。1H NMR(600MHz,CDCl3):δ8.13(d,J=3.7Hz,1H),7.81(d,J=6.2Hz,1H),7.65(s,1H),7.24(d,J=8.1Hz,1H),7.10(s,2H),6.82(d,J=16.0Hz,1H),6.57(s,2H),6.47(d,J=16.2Hz,1H),6.24(s,1H),6.19(s,1H),3.45(s,3H),3.21(s,3H),3.02(dd,2H),1.62(t,J=3.2Hz,3H).13C NMR(101MHz,CDCl3):δ179.64(s),175.13(s),163.45(s),162.97(s),152.85(s),150.45(s),149.43(s),126.34(s),125.83(s),123.78(s),121.53(s),119.53(s),115.73(s),108.25(s),103.52(s),101.47(s),100.89(s),98.25(s),91.33(s),83.32(s),75.95(s),52.55(s),49.43(s),47.16(s),39.96(s),.MS(ESI):529.0621.(C27H23BrO5Na,[M+Na]+)
实施例35:(E)-3-(2,4-二甲氧基-6-((E)-4-丁氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮(H17)的制备
本实施例的制备方法同实施例32,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体B3,按照实施例30从而得到目标化合物(E)-3-(2,4-二甲氧基-6-((E)-4-丁氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮H17。H17为淡黄色固体粉末,收率89%,熔点:167-169℃。1H NMR(600MHz,CDCl3):δ8.31(d,J=2.4Hz,1H),7.82(d,J=9.0,2.4Hz,1H),7.61(d,J=8.9Hz,1H),7.32(s,1H),7.01(d,J=16.0Hz,1H),6.87(d,J=2.1Hz,1H),6.79(d,J=8.7Hz,2H),6.66(d,J=16.1Hz,1H),6.50(d,J=2.1Hz,1H),6.22(s,1H),4.00(q,J=7.0Hz,2H),3.93(s,3H),3.78(d,J=6.2,2H),2.86(d,J=9.8 2H),2.78(d,J=9.0 2H),1.38(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ181.21(s),172.65(s),159.27(s),149.08(s),145.09(s),140.47(s),139.05(s),135.67(s),130.28(s),129.53(s),123.33(s),120.63(s),120.34(s),119.38(s),116.91(s),114.83(s),110.74(s),100.66(s),100.15(s),99.85(s),97.30(s),66.49(s),57.01(s),55.17(s),53.54(s),48.57(s),44.78(s).MS(ESI):457.2016.(C29H29O5,[M+H]+)
实施例36:(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮(H18)的制备
本实施例的制备方法同实施例33,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体B3,按照实施例33从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮H18。H18为淡黄色固体粉末,收率78%,熔点:169-171℃。1H NMR(600MHz,CDCl3):δ8.13(d,J=3.2Hz,1H),7.87(d,J=8.6,1H),7.67(d,J=6.1Hz,1H),7.57(s2H),7.01(d,J=16.0Hz,1H),6.90(d,J=3.1Hz,1H),6.63(d,J=6.7Hz,1H),6.53(d,J=16.1Hz,1H),6.45(d,J=2.1Hz,1H),6.35(s,1H),4.71(q,J=7.0Hz,2H),3.92(s,3H),3.71(s,3H),3.31(d,J=6.1,2H),2.80(d,J=9.8 2H),2.71(d,J=9.0 2H),1.64(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ186.21(s),171.65(s),162.87(s),160.24(s),157.29(s),143.98(s),141.75(s),139.82(s),135.28(s),134.13(s),129.36(s),128.94(s),127.18(s),124.41(s),123.45(s),122.63(s),119.54(s),114.86(s),110.05(s),101.75(s),99.90(s),65.49(s),56.51(s),52.57(s),50.12(s),48.02(s),44.57(s),14.78(s).MS(ESI):487.2115.(C30H31O6,[M+H]+)。
实施例37:(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮(H19)的制备
本实施例的制备方法同实施例34,不同的是步骤a中以溴丁烷代替溴乙烷,得到中间体B3,按照实施例34从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-丁氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮H19。H19为淡黄色固体粉末,收率79%,熔点:265-267℃。1HNMR(600MHz,CDCl3):δ8.12(d,J=3.2Hz,1H),8.02(d,J=6.6,2.4Hz,1H),7.85(d,J=8.2Hz,1H),7.78(s,2H),7.62(d,J=16.0Hz,1H),7.08(d,J=3.4Hz,1H),6.78(d,J=8.0Hz,1H),6.67(d,J=16.1Hz,1H),6.54(d,J=2.1Hz,1H),6.42(s,1H),4.88(q,J=7.0Hz,2H),3.89(s,3H),3.56(s,3H),2.87(d,J=9.8 2H),2.70(d,J=9.0 2H),1.67(t,J=7.0Hz,3H).13C NMR(101MHz,CDCl3):δ181.91(s),162.65(s),157.27(s),156.08(s),155.09(s),140.48(s),139.05(s),138.67(s),137.28(s),130.53(s),128.63(s),128.94(s),127.08(s),121.91(s),120.86(s),120.13(s),118.74(s),115.16(s),110.65(s),105.35(s),98.90(s),66.19(s),57.11(s),55.27(s),53.62(s),52.12(s),15.28(s).MS(ESI):557.0834.(C29H27BrO5Na,[M+Na]+)
实施例38:(E)-3-(2,4-二甲氧基-6-((E)-4-苄氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮(H20)的制备
本实施例的制备方法同实施例32,不同的是步骤a中以苄基溴代替溴乙烷,得到中间体B4,按照实施例30从而得到目标化合物(E)-3-(2,4-二甲氧基-6-((E)-4-苄氧基苯乙烯基)苯基)-1-(2-苯基)丙-2-烯-1-酮H20。H20为淡黄色固体粉末,收率92%,熔点:156-157℃。1H NMR(600MHz,CDCl3):δ8.14(d,J=3.1Hz,1H),7.83(d,J=9.0,2.4Hz,2H),7.59(d,J=8.9Hz,2H),7.34(s 2H),7.06(d,J=16.0Hz,1H),6.97(d,J=2.1Hz,3H),6.79(d,J=8.7Hz,2H),6.66(d,J=16.1Hz,1H),6.50(d,J=2.1Hz,1H),6.22(s,1H),4.00(s,2H),3.93(s,3H),3.38(s,3H).13C NMR(101MHz,CDCl3):δ181.91(s),162.65(s),160.27(s),159.48(s),157.09(s),156.48(s),152.05(s),151.67(s),145.28(s),140.05(s),139.67(s),136.28(s),131.53(s),129.33(s),128.04(s),127.98(s),122.91(s),122.86(s),120.63(s),117.74(s),114.66(s),110.75(s),101.35(s),97.90(s),63.49(s),56.01(s),55.57(s).MS(ESI):491.1853.(C32H27O5,[M+H]+)
实施例39:(E)-2-(2,4-二甲氧基-6-(4-苄氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮(H21)的制备
本实施例的制备方法同实施例33,不同的是步骤a中以苄基溴代替溴乙烷,得到中间体B4,按照实施例33从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-苄氧基苯乙烯基)苯基)-6-甲氧基-4H-苯并吡喃-4-酮H21。H21为淡黄色固体粉末,收率76%,熔点:231-232℃。1H NMR(600MHz,CDCl3):δ8.14(d,J=2.9Hz,1H),7.93(d,J=8.0,2.4Hz,2H),7.69(d,J=3.2Hz,2H),7.36(s,2H),7.17(d,J=16.0Hz,1H),6.94(d,J=3.1Hz,3H),6.76(d,J=8.7Hz,2H),6.71(d,J=16.1Hz,1H),6.48(d,J=2.1Hz,1H),6.21(s,1H),3.78(s,2H),3.56(s,3H),3.42(s,3H).13C NMR(101MHz,CDCl3):δ181.67(s),163.72(s),160.62(s),158.98(s),157.19(s),156.36(s),152.17(s),150.81(s),145.28(s),140.05(s),138.82(s),136.28(s),131.53(s),129.33(s),128.04(s),127.98(s),122.91(s),122.86(s),120.63(s),117.74(s),114.66(s),110.75(s),101.35(s),97.90(s),66.52(s),56.91(s),53.61(s),45.91.MS(ESI):521.1959.(C33H29O6,[M+H]+)。
实施例40:(E)-2-(2,4-二甲氧基-6-(4-苄氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮(H22)的制备
本实施例的制备方法同实施例34,不同的是步骤a中以苄基溴代替溴乙烷,得到中间体B4,按照实施例34从而得到目标化合物(E)-2-(2,4-二甲氧基-6-(4-苄氧基苯乙烯基)苯基)-6-溴-4H-苯并吡喃-4-酮H22。H22为淡黄色固体粉末,收率78%,熔点:259-260℃。1HNMR(600MHz,CDCl3):δ8.23(d,J=3.2Hz,1H),7.91(d,J=6.2,2H),7.67(d,J=2.4Hz,2H),7.38(s,2H),7.22(d,J=16.2Hz,1H),6.84(d,J=2.2Hz,3H),6.58(d,J=8.1Hz,2H),6.42(d,J=16.0Hz,1H),6.31(d,J=2.4Hz,1H),6.20(s,1H),3.67(s,2H),3.31(s,3H).13C NMR(101MHz,CDCl3):δ182.69(s),164.92(s),161.82(s),157.54(s),157.01(s),156.36(s),152.17(s),150.81(s),145.28(s),140.05(s),138.92(s),136.28(s),131.53(s),129.33(s),128.14(s),127.26(s),122.73(s),122.86(s),121.63(s),117.52(s),114.74(s),110.16(s),101.54(s),100.83(s),67.62(s),55.73(s),50.96(s).MS(ESI):591.0778.(C32H25BrO5Na,[M+Na]+)
实施例41:白藜芦醇丙烯酸(酚)酯类衍生物对LPS刺激的RAW264.7释放NO的影响
以LPS刺激小鼠RAW 264.7细胞为炎症细胞模型,采用Griess法测定细胞上清液中NO含量,检测了白藜芦醇类黄酮类类衍生物对LPS刺激的RAW264.7释放NO的影响。
取对数生长期的细胞以7×104个/孔接种于24孔板中,培养24h。实验共分3分组,弃去原先培养基。空白对照组用500μL新培养基培养细胞,LPS刺激组同样加入500μL新培养基,给药组加入含有40μM化合物的培养基500μL。1h后,LPS刺激组和给药组均给予0.5μLLPS刺激,空白对照组不加LPS。干预24h后,收集各孔细胞上清液,用Griess法检测并计算NO细胞浓度
(11)初步构效关系分析与讨论
通过Griess法检测并计算NO细胞浓度,我们测定了40个含有类黄酮的白藜芦醇衍生物对LPS刺激的RAW264.7释放NO的影响,活性结果见表1。
表1本发明所列含类黄酮类的白藜芦醇类衍生物抗炎活性(IC50,μM)
a Antiinflammatory activity was measured by the Griess method.Valuesare the average of three independent experiments run in triplicate.Variationwas generally 5-10%.
由表1可以看出,复筛所选的化合物除了F8、F10、F16、H10、H11、H12、H19、H22外,其他化合物均表现出了较好的NO抑制率。
Claims (4)
2.一种权利要求1所述的含有类黄酮的白藜芦醇类衍生物的制备方法,其特征在于包括如下步骤:
步骤a、称取(E)-3,5-二甲氧基-4'-羟基苯乙烯1mmol于50mL圆底烧瓶中,加入15mL丙酮溶解,加入四丁基溴化铵1.2mmol、无水K2CO31.2mmol,搅拌5min后加入溴代烷1mmol,保持回流反应,TLC监测,反应完全后抽滤,干燥,经柱层析分离得B2-3;
所述溴代烷的结构式为:R2′-Br,其中R2′选自正丁基;
所述B2-3的结构式为:
步骤b、先向N,N-二甲基甲酰胺中加入B2-3,然后于冰浴中缓慢滴加三氯氧磷,滴加完毕后恢复至室温反应,1h后停止反应,随后将反应液逐滴加入到冰水与乙酸乙酯的混合溶液中,再分次加入碳酸钠固体直至无气泡产生,搅拌过夜后析出淡黄色固体,抽滤、干燥,最后柱层析分离得C1-3;
所述C1-3的结构式为:
R2为正丁基;
步骤c、称取取代羟基苯乙酮1mmol、C1-31mmol、吡咯烷1mmol于50mL圆底烧瓶中,加入10mL乙醇做溶剂,40℃反应36h,反应结束,有黄色固体析出,抽滤,由乙酸乙酯重结晶得到产物D17-18;
所述D17-18的结构式为:
步骤d、取上步产物D17-180.5mmol于50mL圆底烧瓶中,加入10mL甲醇溶解,再加入NaOH固体2.5mmol,用移液枪取30%的H2O2溶液2.5mmol滴加入到混合溶液中,40℃条件下反应48h,随后停止反应;将反应液滴加至冰水混合液中,滴加稀盐酸,不停搅拌,同时监测溶液的pH值,保持在5-6之间,析出固体后抽滤、干燥、柱层析分离,得到目标产物。
3.根据权利要求2所述的制备方法,其特征在于:
步骤b中,B2-3与三氯氧磷的摩尔比为1:1,冰水与乙酸乙酯的体积比为5:1。
4.一种权利要求1所述的含有类黄酮的白藜芦醇类衍生物的用途,其特征在于:是在制备具有抑制LPS刺激的RAW264.7释放NO作用的单胺氧化酶抑制剂中的应用。
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