CN114671868B - Polysubstituted indolizine compound containing pyridone and preparation method and application thereof - Google Patents
Polysubstituted indolizine compound containing pyridone and preparation method and application thereof Download PDFInfo
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- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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Abstract
The invention discloses a liquid containingThe structural formula of the polysubstituted indolizine compound of pyridone is as follows:
said R is 1 Is variously substituted phenyl, naphthyl, heterocyclic aryl and aliphatic hydrocarbon, R 2 Is hydrogen atom and methyl, X is oxygen atom, aromatic amine with various stituents on benzene ring. The invention also discloses a preparation method of the compounds, which comprises the steps of dissolving the o-chloropyridine salt and the alkali in the solvent, stirring until the o-chloropyridine salt is reacted, carrying out cyclization reaction on the o-chloropyridine salt under the action of the corresponding alkali, and generating the polysubstituted indolizine compounds containing pyridone by the o-chloropyridine salt and the arylamine with various substituents on benzene rings under the action of the corresponding alkali. The preparation method provided by the invention has the advantages of simple operation, easily obtained raw materials, mild preparation conditions, good functional group tolerance and the like.
Description
Technical Field
The invention belongs to a synthesis method of compounds, and particularly relates to a polysubstituted indolizine compound containing pyridone, and a preparation method and application thereof.
Background
The indolizine derivatives are very important organic small molecules, and particularly, the polysubstituted indolizine compounds are used as an important chemical intermediate, so that the indolizine derivatives have very high application value and a very wide application range in the field of medicines. Many molecules of natural products and synthetic drugs, such as Camptothecin (Camptothecin), rosabulin and Fantofarone, have a skeleton of indolizine nucleus, and their structural formulas are as follows:
pyridones are heterocycles with unique structures, can serve as hydrogen bond supply receptors, serve as bioisosteres of amides, phenyl or other nitrogen-containing or oxygen-containing heterocycles, and have very good drug-like properties. However, no polysubstituted indolizine compound containing pyridone is reported at present, conditions for constructing an aromatic ring grafted pyridone compound are harsh, most of the compounds need metal catalysis, and the use of heavy metals can cause serious pollution to the environment. Therefore, the method for developing the polysubstituted indolizine compound direct synthesis method which has mild reaction conditions, is environment-friendly, has strong substrate applicability and can be quickly and efficiently used for the polysubstituted indolizine compound direct synthesis has certain application value.
Disclosure of Invention
The embodiment aims at providing a polysubstituted indolizine compound containing pyridone, and a preparation method and application thereof.
According to a first aspect of embodiments of the present application, there is provided a pyridone-containing polysubstituted indolizine compound, characterized by the structural formula:
the R is 1 Is variously substituted phenyl, naphthyl, heterocyclic aryl and aliphatic hydrocarbon, R 2 Is hydrogen atom and methyl, X is oxygen atom, aromatic amine with various stituents on benzene ring.
Further, the polysubstituted indolizine compound containing pyridone is any one of the following compounds:
1- (3- (4-methoxybenzoyl) -2- (4-methoxyphenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-methylbenzoyl) -2- (p-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-fluorobenzoyl) -2- (4-fluorobenzoyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-chlorobenzoyl) -2- (4-chlorophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-bromobenzoyl) -2- (4-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-nitrobenzoyl) -2- (4-nitrophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (2- (thiophen-2-yl) -3- (thiophene-2-carbonyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4- (trifluoromethyl) benzoyl) -2- (4- (trifluoromethyl) phenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (3-methylbenzoyl) -2- (m-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (3-bromobenzoyl) -2- (3-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (furan-2-carbonyl) -2- (furan-2-yl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-naphthyl) -2- (naphthalen-2-yl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- ([ 1,1 '-biphenyl ] -4-carbonyl) -2- ([ 1,1' -biphenyl ] -4-yl) indolizin-1-yl) pyridin-2 (1H) -one;
4- (3- (4-cyanobenzoyl) -1- (2-oxopyridin-1 (2H) -yl) indolizin-2-yl) benzonitrile;
1- (2- (tert-butyl) -3-pivaloyl indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-methylbenzoyl) -2- (o-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-bromobenzoyl) -2- (2-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3-benzoyl-6-methyl-2-phenylindolizin-1-yl) -5-methylpyridin-2 (1H) -one;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) benzonitrile;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylene) amino) -5-bromoxynil;
(E) -4- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -ylidene) amino) benzonitrile;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) -5-nitrobenzonitrile.
According to a second aspect of embodiments of the present application, there is provided a method for producing a pyridone-containing polysubstituted indolizine compound of the first aspect, comprising the steps of:
dissolving the o-chloropyridine salt and alkali in a solvent, and stirring until the o-chloropyridine salt is reacted;
the structural formula of the o-chloropyridine salt is as follows:
the reaction formula is as follows:
the R is 1 Various substituted phenyl, naphthyl, heterocyclic aryl and aliphatic hydrocarbon; the R is 2 H and methyl.
Preferably, the reaction temperature of the o-chloropyridine salt is in the range of 0 to 60 ℃ and 0 ℃,20 ℃,60 ℃ and preferably 20 ℃.
Preferably, the solvent is an aprotic solvent selected from acetonitrile, tetrahydrofuran, N-dimethylformamide, dichloromethane, toluene, preferably acetonitrile.
Preferably, the solvent is a protic solvent, and the protic solvent is methanol.
Preferably, the base is cesium carbonate, potassium carbonate, sodium hydroxide, sodium hydride, triethylamine, wherein cesium carbonate is preferred.
Preferably, the base is used in an amount of 2.0 to 3.0 equivalents of the o-chloropyridine salt, with an equivalent of 2.0 being preferred.
The embodiment of the invention also provides a preparation method of the polysubstituted indolizine compound in the first aspect, which comprises the following steps:
dissolving an o-chloropyridine salt, arylamine with different substituents on a benzene ring and alkali in a solvent, and stirring until the o-chloropyridine salt is reacted;
the structural formula of the o-chloropyridine salt is as follows:
the structural formula of the arylamine with different substituent groups on the benzene ring is as follows:
the R is 1 When it is hydrogen atom, bromine atom, nitro group, R 2 Is cyano; when R is present 1 When it is a hydrogen atom, R 2 Is a cyano group.
Preferably, the reaction temperature of the o-chloropyridine salt is 20 ℃, the solvent is acetonitrile, the base is cesium carbonate, the dosage is 2.0 equivalents of the o-chloropyridine salt, the concentration of the o-chloropyridine salt is 0.1mol/mL, and the concentration of the arylamine with different substituents on benzene rings is 0.3mol/mL.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
as can be seen from the above examples, the present application does not require any precious metal catalyst; the reaction condition is mild; the reaction yield is high, and the separation yield of most products is over 60 percent; the substrate has wide applicability, and various substrate structures can bear the reaction conditions. Can be used for constructing a polysubstituted indolizine compound library containing pyridone, and can be used for carrying out activity screening of different targets as an effective way for discovering new drugs.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Detailed Description
The invention will now be further illustrated by the following examples.
Example 1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure, and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain a yellow powder. The yield thereof was found to be 78%.
Yellow solid, yield 78%. Melting point: 186.3-187.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.81(d,J＝7.0Hz,1H),7.45–7.42(m,2H),7.38–7.33(m,2H),7.26(d,J＝15.5Hz,1H),7.15–7.11(m,1H),7.03–6.90(m,8H),6.89–6.86(m,1H),6.76(d,J＝9.5Hz,1H),5.99(t,J＝6.5Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ187.06,163.67,140.31,140.01,139.44,134.40,133.25,131.61,130.88,130.49,129.44,128.21,127.79,127.39,127.23,125.43,121.46,119.24,116.25,115.28,114.65,106.13.HRMS(ESI):m/z calcd for[M+H]+:391.1441,found:391.1448。
Example 1 comparison of yields under different solvent conditions
Example 1 comparison of yields under different base conditions
Example 1 comparison of yields at different equivalents of base
Example 1 comparison of yields at different temperatures
Comparative example 1:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL of N, N-dimethylformamide and stirred at 20 ℃ for 24 hours. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 48%
Comparative example 2:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL of dichloromethane and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 51%
Comparative example 3:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and potassium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain a yellow powder with a yield of 55%
Comparative example 4:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and sodium hydroxide (0.4 mmol,2.0 eq) were dissolved in 2mL acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 45%
Comparative example 5:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.5 eq) were dissolved in 2mL acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 56%
Comparative example 6:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,3.0 eq) were dissolved in 2mL acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 68%
Comparative example 7:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL acetonitrile and stirred at 0 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 69%
Comparative example 8:1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq) and cesium carbonate (0.4 mmol,2.0 eq) were dissolved in 2mL acetonitrile and stirred at 60 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 1:2) to obtain yellow powder with a yield of 70%
Example 2- (3- (4-methylbenzoyl) -2- (p-tolyl) indolizin-1-yl) pyridin-2 (1H) -one
The procedure was as in example 1 except for changing 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide to 2-chloro-1- (2-oxo-2- (p-tolyl) ethyl) pyridine-1-ammonium bromide to give a yellow powder. The yield thereof was found to be 61%.
Yellow solid, yield 61%. Melting point: 199.6-200.3 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.74(d,J＝7.2Hz,1H),7.35–7.29(m,4H),7.25–7.19(m,1H),6.96(td,J＝7.2,1.2Hz,1H),6.87(dd,J＝6.8,1.6Hz,1H),6.83(d,J＝8.0Hz,2H),6.78(d,J＝7.9Hz,2H),6.75–6.69(m,3H),5.97(td,J＝6.8,0.8Hz,1H),2.19(s,3H),2.15(s,3H). 13 C NMR(100MHz,CDCl 3 )δ187.14,163.79,141.43,140.28,140.26,136.97,136.78,134.27,133.14,130.49,129.75,128.76,128.56,128.18,128.10,125.13,121.57,119.52,116.23,115.09,114.43,106.13,21.45,21.14.HRMS(ESI):m/z calcd for[M+H]+:419.1754,found:419.1751。
Example 3- (4-fluorobenzoyl) -2- (4-fluorobenzene) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced with 2-chloro-1- (2- (4-fluorophenyl) -2-oxyethyl) pyridine-1-ammonium bromide to give a yellow powder. The yield thereof was found to be 69%.
Yellow solid, yield 69%. MeltingPoint: 270.4-271.1 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.76(d,J＝7.2Hz,1H),7.45(dd,J＝8.4,5.6Hz,2H),7.39–7.33(m,2H),7.28(d,J＝7.2Hz,1H),7.02(t,J＝6.8Hz,1H),6.96(dd,J＝8.0,5.6Hz,2H),6.89–6.85(m,1H),6.70(q,J＝8.8Hz,5H),6.01(t,J＝6.6Hz,1H). 13 C NMR(100MHz,CDCl 3 )δ185.32,163.63,140.35,139.75,135.61(d,J＝3.0Hz),133.40,133.22,132.15(d,J＝8.2Hz),131.82(d,J＝9.0Hz),128.13,127.63(d,J＝3.5Hz),125.67,121.58,119.08,116.10,115.36,115.19,114.97,114.85,114.70,114.49,106.22.HRMS(ESI):m/z calcd for[M+H]+:427.1258,found:427.1264。
Example 4- (3- (4-methoxybenzoyl) -2- (4-methoxyphenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced by 2-chloro-1- (2- (4-methoxyphenyl) -2-oxyethyl) pyridine-1-ammonium bromide to give a yellow powder. The yield thereof was found to be 57%.
Yellow solid, yield 57%. Melting point: 185.5-186.2 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.64(d,J＝7.2Hz,1H),7.45(d,J＝8.0Hz,2H),7.38–7.29(m,2H),7.22–7.16(m,1H),6.96–6.86(m,4H),6.72(d,J＝9.2Hz,1H),6.50(d,J＝7.2Hz,4H),5.99(t,J＝6.4Hz,1H),3.69(s,3H),3.66(s,3H). 13 C NMR(100MHz,CDCl 3 )δ186.16,163.85,162.13,158.86,140.32,133.44,133.01,131.93,131.88,128.02,124.90,124.13,121.58,119.46,116.18,114.88,114.23,113.63,112.92,106.21,55.42,55.27.HRMS(ESI):m/z calcd for[M+H]+:451.1652,found:471.1650。
Example 5- (3- (4-chlorobenzoyl) -2- (4-chlorophenyl) indolizin-1-yl) pyridin-2 (1H) -one
The procedure was as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-1- (2- (4-chlorophenyl) -2-oxyethyl) pyridine-1-ammonium bromide to give a yellow powder. The yield thereof was found to be 51%.
Yellow solid, yield 51%. Melting point: 196.6-197.2 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.80(d,J＝7.2Hz,1H),7.39–7.27(m,5H),7.06–6.96(m,5H),6.90–6.86(m,3H),6.70(d,J＝9.6Hz,1H),6.02(td,J＝6.8,1.2Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ185.36,163.62,140.48,139.66,137.74,137.41,133.94,133.56,133.26,131.64,130.70,130.05,128.24,128.20,127.78,125.95,121.59,119.00,116.14,115.36,115.07,106.40.HRMS(ESI):m/z calcd for[M+H]+:459.0662,found:459.0658。
Example 6 1- (3- (4-bromobenzoyl) -2- (4-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 1- (2- (4-bromophenyl) -2-oxyethyl) -2-chloropyridine-1-ammonium bromide to give a yellow solid in 65% yield.
Yellow solid, yield 65%. Melting point: 194.5-195.3 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.82(d,J＝7.6Hz,1H),7.39–7.29(m,3H),7.28–7.23(m,2H),7.15(dd,J＝18.0,8.4Hz,4H),7.04(td,J＝7.2,1.2Hz,1H),6.88(dd,J＝6.8,2.0Hz,1H),6.82(d,J＝8.4Hz,2H),6.70(d,J＝9.6Hz,1H),6.03(t,J＝6.8Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ185.45,163.60,140.48,139.62,138.17,133.60,133.38,131.90,131.16,130.78,130.76,130.52,128.29,126.02,125.88,122.18,121.57,118.92,116.12,115.34,115.13,106.41.HRMS(ESI):m/z calcd for[M+H]+:546.9651,found:546.9658。
Example 7- (3- (4-nitrobenzoyl) -2- (4-nitrophenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-1- (2- (4-nitrophenyl) -2-oxyethyl) pyridine-1-ammonium bromide to give a yellow solid in 80% yield.
Yellow solid, yield 80%. Melting point: 218.7-219.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.92(d,J＝7.0Hz,1H),7.85(dd,J＝20.0,8.5Hz,4H),7.57(d,J＝8.5Hz,2H),7.45–7.37(m,3H),7.22–7.13(m,3H),6.91(d,J＝6.0Hz,1H),6.72(d,J＝9.0Hz,1H),6.08(t,J＝6.0Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ183.71,163.43,148.79,146.99,144.94,140.84,139.07,138.38,134.25,132.60,131.29,130.11,128.51,127.22,123.05,122.82,121.77,118.67,116.29,116.20,116.11,106.85.HRMS(ESI):m/z calcd for[M+H]+:481.1148,found:481.1152。
Example 8 1- (2- (thien-2-yl) -3- (thien-2-carbonyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-1- (2-oxo-2- (thiophen-2-yl) ethyl) pyridine-1-ammonium bromide to give a yellow solid in 48% yield.
Yellow solid, yield 48%. Melting point: 226.7-227.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.39(d,J＝7.5Hz,1H),7.47(t,J＝7.5Hz,1H),7.36–7.33(m,1H),7.31–7.26(m,1H),7.19–7.13(m,3H),6.91(t,J＝7.0Hz,1H),6.83(dd,J＝3.5,0.5Hz,1H),6.79(d,J＝9.0Hz,1H),6.33–6.30(m,1H),6.25(dd,J＝3.0,1.5Hz,1H),6.23–6.19(m,2H). 13 C NMR(126MHz,CDCl 3 )δ173.43,163.27,152.73,145.91,145.36,143.41,140.58,140.09,132.92,127.25,124.87,122.02,121.58,118.03,117.62,116.13,114.46,113.79,111.86,111.45,110.64,106.46.HRMS(ESI):m/z calcd for[M+H]+:403.0575,found:403.0579。
Example 9- (3- (4- (trifluoromethyl) benzoyl) -2- (4- (trifluoromethyl) phenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced with 2-chloro-1- (2-oxo-2- (4- (trifluoromethyl) phenyl) ethyl) pyridine-1-ammonium bromide to give a yellow solid in 75% yield.
Yellow solid, yield 75%. Melting point: 184.4-185.0 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.98(d,J＝7.2Hz,1H),7.45–7.34(m,5H),7.21(dd,J＝18.4,8.0Hz,4H),7.12(td,J＝7.2,2.0Hz,1H),7.06(d,J＝8.0Hz,2H),6.90(dd,J＝6.8,1.6Hz,1H),6.69(d,J＝9.2Hz,1H),6.03(td,J＝6.8,0.8Hz,1H). 13 C NMR(100MHz,CDCl 3 )δ185.08,163.48,142.73,140.57,139.37,135.33,133.98,133.67,132.59,132.27,130.71,130.04,129.71,129.27,128.60,126.65,124.68(q,J＝3.6Hz),124.43(q,J＝3.6Hz),121.63,119.00,116.19,115.91,115.67,106.47.HRMS(ESI):m/z calcd for[M+H]+:527.1194,found:527.1191。
Example 10- (3- (3-methylbenzoyl) -2- (m-tolyl) indolizin-1-yl) pyridin-2 (1H) -one
The procedure was as in example 1 except for changing 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide to 2-chloro-1- (2-oxo-2- (m-tolyl) ethyl) pyridine-1-ammonium bromide to give a yellow solid in 53% yield.
Yellow solid, yield 53%. Melting point: 208.4-209.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.82(d,J＝7.0Hz,1H),7.40–7.36(m,1H),7.36–7.31(m,2H),7.28–7.24(m,1H),7.15(s,1H),7.00(td,J＝7.0,1.2Hz,1H),6.98–6.92(m,2H),6.90(dd,J＝7.0,1.5Hz,1H),6.86(t,J＝7.5Hz,1H),6.84–6.80(m,2H),6.75(d,J＝7.5Hz,1H),6.69(s,1H),6.03(td,J＝7.0,1.3Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ187.32,163.68,140.53,140.20,139.44,137.28,136.87,134.50,133.07,131.53,131.46,131.37,130.24,128.23,127.98,127.67,127.41,127.03,126.12,125.36,121.10,119.36,116.17,114.93,114.57,106.58,20.95,20.82.HRMS(ESI):m/z calcd for[M+H]+:419.1760,found:419.1758。
Example 11- (3- (3-bromobenzoyl) -2- (3-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 1- (2- (3-bromophenyl) -2-oxyethyl) -2-chloropyridine-1-ammonium bromide to give a yellow solid in 64% yield.
Yellow solid, yield 64%. Melting point: 208.5-209.1 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.87(d,J＝7.0Hz,1H),7.48–7.45(m,1H),7.43–7.36(m,3H),7.35–7.31(m,1H),7.29(ddd,J＝8.0,2.0,1.0Hz,1H),7.16–7.13(m,1H),7.08(t,J＝7.0Hz,1H),7.05–6.98(m,3H),6.97–6.90(m,2H),6.78(d,J＝8.5Hz,1H),6.07(t,J＝5.8Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ184.89,163.52,141.26,140.66,140.56,139.69,133.80,133.63,133.38,133.26,132.09,130.68,129.62,129.29,128.50,128.40,127.34,126.28,122.04,121.80,121.46,118.87,116.29,115.36,106.67,106.53.HRMS(ESI):m/z calcd for[M+H]+:546.9657,found:546.9650。
Example 12- (3- (furan-2-carbonyl) -2- (furan-2-yl) indolizin-1-yl) pyridin-2 (1H) -one
The procedure was as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-1- (2- (furan-2-yl) -2-oxyethyl) pyridine-1-ammonium bromide as a pale yellow solid in 35% yield.
Light yellow solidYield 35%. Melting point: 209.3-210.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.39(d,J＝7.0Hz,1H),7.50–7.46(m,1H),7.35–7.33(m,1H),7.29(d,J＝9.0Hz,1H),7.19–7.14(m,3H),6.93–6.89(m,1H),6.85–6.80(m,2H),6.32(dd,J＝3.8,1.8Hz,1H),6.26–6.20(m,3H). 13 C NMR(126MHz,CDCl 3 )δ173.44,163.29,152.72,145.93,145.34,143.42,140.64,140.11,132.91,127.25,124.89,122.01,121.55,118.03,117.64,116.13,114.47,113.75,111.87,111.46,110.65,106.55.HRMS(ESI):m/z calcd for[M+H]+:371.1032,found:371.1029。
Example 13 1- (3- (2-naphthyl) -2- (naphthalen-2-yl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced by 2-chloro-1- (2- (naphthalen-2-yl) -2-oxoethyl) pyridine-1-ammonium bromide to give a yellow solid in 68% yield.
Yellow solid, yield 68%. Melting point 212.5-213.3 deg.C. 1 H NMR(400MHz,CDCl 3 )δ9.92(d,J＝7.2Hz,1H),7.87–7.84(m,1H),7.57(dd,J＝8.4,1.6Hz,1H),7.46–7.28(m,9H),7.21–7.15(m,3H),7.15–7.00(m,4H),6.88(dd,J＝6.8,1.6Hz,1H),6.73(d,J＝9.2Hz,1H),5.87(td,J＝6.8,1.3Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ187.00,163.67,140.24,139.97,136.41,134.57,134.05,133.36,132.54,131.78,131.55,130.91,130.00,129.17,128.43,128.36,127.46,127.41,127.31,127.26,127.11,126.99,126.96,125.89,125.68,125.64,125.52,124.93,121.46,119.86,116.31,115.57,114.76,106.12.HRMS(ESI):m/z calcd for[M+H]+:491.1760,found:491.1768。
Example 14 1- (3- ([ 1,1 '-biphenyl ] -4-carbonyl) -2- ([ 1,1' -biphenyl ] -4-yl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced with 1- (2- ([ 1,1' -biphenyl ] -4-yl) -2-oxyethyl) -2-chloropyridine-1-ammonium bromide to give a yellow solid in 54% yield.
Yellow solid, yield 54%. Melting point: 203.5-203.9 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.92(d,J＝7.2Hz,1H),7.49(d,J＝8.0Hz,2H),7.41–7.33(m,2H),7.31–7.24(m,11H),7.19–7.13(m,4H),7.07–7.01(m,3H),6.95(d,J＝5.6Hz,1H),6.74(d,J＝9.2Hz,1H),6.01(t,J＝6.6Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ186.53,163.66,143.76,140.30,140.29,140.14,140.05,138.26,134.22,133.45,130.96,130.67,129.90,128.57,128.40,127.61,127.32,127.25,127.03,126.52,126.19,125.56,121.53,119.47,116.19,115.37,114.75,106.20.HRMS(ESI):m/z calcd for[M+H]+:543.2073,found:543.2076。
Example 15- (3- (4-Cyanobenzoyl) -1- (2-Oxopyridin-1 (2H) -yl) indolizin-2-yl) benzonitrile
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-1- (2- (4-cyanophenyl) -2-oxyethyl) pyridine-1-ammonium bromide to give a yellow solid in 65% yield.
Yellow solid, yield 65%. Melting point: 287.5-288.3 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.87(d,J＝7.2Hz,1H),7.48(d,J＝8.4Hz,2H),7.40–7.35(m,3H),7.31(dd,J＝20.0,8.4Hz,4H),7.16–7.09(m,3H),6.87(dd,J＝6.8,1.6Hz,1H),6.68(d,J＝9.2Hz,1H),6.05(td,J＝6.8,1.2Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ184.11,163.43,143.29,140.65,139.11,136.48,134.15,132.88,131.60,131.41,131.07,129.70,128.41,126.94,121.76,118.55,117.86,117.64,116.22,115.98,114.47,111.74,106.58.HRMS(ESI):m/z calcd for[M+H]+:441.1352,found:441.1359。
Example 16 1- (2- (tert-butyl) -3-pivaloyl indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure is the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide is replaced by 2-chloro-1- (3,3-dimethyl-2-oxybutyl) pyridine-1-ammonium bromide to give a pale yellow solid in 57% yield.
Yellow solid, yield 57%. Melting point: 97.6-98.2 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.94(dt,J＝7.0,1.0Hz,1H),7.90–7.88(m,1H),7.84(d,J＝9.0Hz,1H),7.77(d,J＝16.5Hz,1H),7.28–7.23(m,1H),6.91(td,J＝7.0,1.5Hz,1H),6.81(d,J＝16.0Hz,1H),6.78–6.74(m,1H),1.47(s,9H),1.35(s,9H). 13 C NMR(126MHz,CDCl 3 )δ196.76,161.18,160.29,136.48,129.62,126.81,125.08,121.30,120.20,120.05,116.72,114.50,111.60,109.89,44.06,31.55,29.19,28.73.HRMS(ESI):m/z calcd for[M+H]+:351.2073,found:351.2069。
Example 17- (3- (2-methylbenzoyl) -2- (o-tolyl) indolizin-1-yl) pyridin-2 (1H) -one
The procedure was as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was changed to 2-chloro-1- (2-oxo-2- (o-tolyl) ethyl) pyridine-1-ammonium bromide to give a pale yellow solid in 24% yield.
Pale yellow solid, yield 24%. Melting point: 198.3-199.1 deg.C. 1 H NMR(400MHz,CDCl 3 )δ10.13(d,J＝7.2Hz,1H),7.43–7.28(m,2H),7.25–7.17(m,1H),7.09–6.97(m,2H),6.95–6.63(m,8H),6.58(t,J＝10.0Hz,1H),5.86(t,J＝6.4Hz,1H),2.32(s,3H),2.01(s,3H).HRMS(ESI):m/z calcd for[M+H]+:419.1760,found:419.1765。
Example 18- (3- (2-bromobenzoyl) -2- (2-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 1- (2- (2-bromophenyl) -2-oxyethyl) -2-chloropyridine-1-ammonium bromide to give a pale yellow solid in 32% yield.
Pale yellow solid, yield 32%. Melting point: 189.4-190.2 ℃. 1 H NMR(400MHz,CDCl 3 )δ10.20(d,J＝6.8Hz,1H),7.41–7.31(m,3H),7.29–7.20(m,3H),7.19–7.07(m,3H),7.02–6.90(m,2H),6.89–6.77(m,2H),6.50(d,J＝9.6Hz,1H),6.01(t,J＝6.8Hz,1H).HRMS(ESI):m/z calcd for[M+H]+:546.9657,found:546.9660。
Example 19 1- (3-benzoyl-6-methyl-2-phenylindolizin-1-yl) -5-methylpyridin-2 (1H) -one
The synthesis procedure was the same as in example 1 except that 2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide was replaced with 2-chloro-5-methyl-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide to give a yellow solid in 69% yield.
Yellow solid, yield 69%. Melting point: 207.1-207.6 ℃. 1 H NMR(500MHz,CDCl 3 )δ9.65(s,1H),7.42(dd,J＝8.0,1.3Hz,2H),7.26–7.21(m,2H),7.14–7.10(m,2H),6.99–6.90(m,7H),6.76(d,J＝9.0Hz,1H),6.67(s,1H),2.41(d,J＝1.0Hz,3H),1.85(s,3H). 13 C NMR(126MHz,CDCl 3 )δ186.96,163.04,143.39,139.55,137.33,133.90,132.11,131.78,130.79,130.47,129.46,128.46,127.71,127.34,127.10,126.02,124.55,120.61,118.99,115.72,115.47,115.05,18.72,16.80.HRMS(ESI):m/z calcd for[M+H]+:419.1760,found:419.1767。
Example 20 (E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -ethylidene) amino) benzonitrile
2-chloro-1- (2-oxo-2-phenylethyl) pyridine-1-ammonium bromide (0.2mmol, 1.0 eq), 2-aminobenzonitrile (0.6 mmol,3.0 eq) and cesium carbonate (0.6 mmol,3.0 eq) were dissolved in 2mL of acetonitrile and stirred at 20 ℃ for 24 h. After the reaction was completed, the solvent was distilled off under reduced pressure, and then subjected to separation and purification by silica gel column chromatography (petroleum ether: ethyl acetate = 5:1) to obtain a yellow powder. The yield thereof was found to be 25%.
Yellow powder, yield 25%. Melting point: 189.5-190.2 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.84(d,J＝6.8Hz,1H),7.73(d,J＝8.8Hz,1H),7.56(dd,J＝8.0,1.6Hz,1H),7.48–7.43(m,3H),7.37–7.30(m,1H),7.17–7.10(m,3H),7.04–6.90(m,9H),6.68(dd,J＝6.8,1.2Hz,1H),6.29(d,J＝9.6Hz,1H),5.69(td,J＝6.8,1.2Hz,1H). 13 C NMR(126MHz,CDCl 3 )δ186.81,155.09,154.63,140.26,139.57,137.05,134.59,133.80,133.54,133.46,131.93,131.88,130.69,129.53,128.32,127.82,127.37,127.19,125.47,123.71,121.77,119.07,118.82,117.13,116.74,114.80,114.47,106.22,104.51.HRMS(ESI):m/z calcd for[M+H]+:419.1760,found:419.1769。
Example 21 (E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) -5-bromoxynil
The procedure is as in example 19, except that 2-aminobenzonitrile is replaced by 2-amino-5-bromobenzonitrile to give a yellow powder. The yield thereof was found to be 29%.
Yellow powder, yield 25%. Melting point: 208.3-208.9 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.84(d,J＝7.2Hz,1H),7.69–7.63(m,2H),7.52(dd,J＝8.4,2.0Hz,1H),7.44(d,J＝7.2Hz,2H),7.35–7.29(m,1H),7.15–7.08(m,3H),7.04–6.96(m,7H),6.78(d,J＝8.6Hz,1H),6.72(d,J＝6.8Hz,1H),6.30(d,J＝9.2Hz,1H),5.74(t,J＝6.4Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ186.84,154.72,154.26,140.45,139.53,137.52,136.85,135.58,134.51,133.32,131.86,130.79,130.65,129.51,128.34,127.84,127.39,127.23,125.49,125.34,119.07,117.43,116.91,116.53,114.78,114.21,113.20,107.98,104.97.HRMS(ESI):m/z calcd for[M+H]+:569.0977,found:569.0982。
Example 22 (E) -4- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -ylidene) amino) benzonitrile
The procedure is as in example 19 except that 2-aminobenzonitrile is replaced by p-aminobenzonitrile to give a yellow powder. The yield thereof was found to be 19%.
Yellow powder, yield 19%. Melting point: 190.3-191.0 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.84(d,J＝7.2Hz,1H),7.49(d,J＝8.4Hz,3H),7.42(d,J＝7.6Hz,2H),7.30(d,J＝7.2Hz,1H),7.13(t,J＝7.2Hz,1H),7.06–6.96(m,8H),6.93–6.87(m,1H),6.81(d,J＝6.8Hz,1H),6.74(d,J＝8.4Hz,2H),6.35(d,J＝9.6Hz,1H),5.74(t,J＝6.4Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ186.87,155.95,153.73,140.26,139.57,136.72,134.62,133.52,133.24,132.25,130.80,130.49,129.42,128.53,127.75,127.38,127.17,125.21,123.04,120.09,119.24,116.78,116.04,114.70,114.52,104.42,104.00.HRMS(ESI):m/z calcd for[M+H]+:491.1872,found:491.1879。
Example 23 (E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) -5-nitrobenzonitrile
The procedure is as in example 19, except that 2-aminobenzonitrile is replaced by 2-amino-5-nitrobenzonitrile to give a yellow powder. The yield thereof was found to be 25%.
Yellow powder, yield 25%. Melting point: 276.1-276.8 ℃. 1 H NMR(400MHz,CDCl 3 )δ9.83(d,J＝7.2Hz,1H),8.42(d,J＝2.4Hz,1H),8.23(dd,J＝9.2,2.8Hz,1H),7.57(d,J＝8.8Hz,1H),7.44(d,J＝7.2Hz,2H),7.35–7.30(m,1H),7.22–7.11(m,2H),7.09–6.97(m,8H),6.96–6.92(m,2H),6.54(d,J＝9.2Hz,1H),5.99(t,J＝6.8Hz,1H). 13 C NMR(101MHz,CDCl 3 )δ187.00,160.28,154.91,140.98,140.62,139.36,139.00,134.33,133.05,131.67,130.95,130.52,130.08,129.50,128.76,128.32,127.91,127.46,127.38,125.69,122.44,119.18,116.96,116.38,116.03,114.79,114.17,107.06,106.19.HRMS(ESI):m/z calcd for[M+H]+:536.1723,found:536.1728。
In addition to the compounds of the above examples, the present invention performed in vitro screening for anti-tumor cell activity on the compounds of the examples.
Biological test example:
the obtained compounds were tested for proliferation inhibitory activity against human glioma cell U251, colon cancer cell HT29, liver cancer cell HepG2, lung cancer cell H1299 and kidney cancer cell 769P.
The experimental method comprises the following steps:
1) Cell line: selecting a human glioma cell U251, a colon cancer cell HT29, a liver cancer cell HepG2, a lung cancer cell H1299 and a kidney cancer cell 769P;
2) The cells in logarithmic growth phase are digested, counted and prepared to a concentration of 5 × 10 4 Cell suspension/mL, 100. Mu.L of cell suspension per well in a 96-well cell culture plate (5X 10 per well) 3 One cell). Placing 96 well cell culture plates at 37 ℃,5% CO 2 After 24h incubation in the incubator, 100 μ L of compound was added, each compound was set up in a concentration gradient, and each concentration was set up in triplicate wells.
3) Placing at 37 deg.C, 5% CO 2 After 72 hours of culture in an incubator, the supernatant was discarded, 20. Mu.L of 5mg/mL MTT solution and 80. Mu.L of culture medium were added to each well, the mixture was incubated at 37 ℃ for 4 hours, the supernatant was discarded, 150. Mu.L of DMSO was added to each well, the crystals were sufficiently dissolved by gentle shaking, and the absorbance (OD) was measured at a wavelength of 570nm using a microplate reader (absorbance was measured at a wavelength of 490nm for adherent cells). The inhibition rate was calculated by the following formula using cells cultured in the same conditions and the same concentration of DMSO without the sample as a control:
cell growth inhibition = (OD control-OD administration-OD blank)/(OD control-OD blank) × 100%. Half ofNumber inhibition concentration IC 50 Calculated by Graphpad Prism 4.
The experimental results are as follows: the inhibition of cell proliferation by compounds against U251, HT29, hepG2, H1299 and 769P is shown in Table 1.
Cell proliferation inhibitory Activity of Table 1 Compounds on U251, HT29, hepG2, H1299 and 769P
As can be seen from the data in the table, most of the prepared compounds have better in vitro tumor inhibition activity, and the inhibition activity of examples 4, 8 and 12 on different tumor cell lines is less than 10 mu M, so that the compounds related to the application have stronger anti-tumor activity. In conclusion, the compounds have better anti-tumor application prospect, so that the compounds have good commercial value.
It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (13)
1. A polysubstituted indolizine compound containing pyridone is characterized in that the structural formula is as follows:
is any one of the following:
1- (3- (4-methoxybenzoyl) -2- (4-methoxyphenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-methylbenzoyl) -2- (p-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-fluorobenzoyl) -2- (4-fluorobenzoyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-chlorobenzoyl) -2- (4-chlorophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-bromobenzoyl) -2- (4-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4-nitrobenzoyl) -2- (4-nitrophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (2- (thiophen-2-yl) -3- (thiophene-2-carbonyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (4- (trifluoromethyl) benzoyl) -2- (4- (trifluoromethyl) phenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (3-methylbenzoyl) -2- (m-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (3-bromobenzoyl) -2- (3-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (furan-2-carbonyl) -2- (furan-2-yl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-naphthyl) -2- (naphthalen-2-yl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- ([ 1,1 '-biphenyl ] -4-carbonyl) -2- ([ 1,1' -biphenyl ] -4-yl) indolizin-1-yl) pyridin-2 (1H) -one;
4- (3- (4-cyanobenzoyl) -1- (2-oxopyridin-1 (2H) -yl) indolizin-2-yl) benzonitrile;
1- (2- (tert-butyl) -3-pivaloyl indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-methylbenzoyl) -2- (o-tolyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3- (2-bromobenzoyl) -2- (2-bromophenyl) indolizin-1-yl) pyridin-2 (1H) -one;
1- (3-benzoyl-6-methyl-2-phenylindolizin-1-yl) -5-methylpyridin-2 (1H) -one;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) benzonitrile;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylene) amino) -5-bromoxynil;
(E) -4- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridin-2 (1H) -ylidene) amino) benzonitrile;
(E) -2- ((1- (3-benzoyl-2-phenylindolizin-1-yl) pyridine-2 (1H) -ethylidene) amino) -5-nitrobenzonitrile.
2. The method for preparing polysubstituted indolizines containing pyridones according to claim 1, comprising the steps of:
dissolving the o-chloropyridine salt and alkali in a solvent, and stirring until the reaction of the o-chloropyridine salt is finished;
the structural formula of the o-chloropyridine salt is as follows:
said R is 1 、R 2 The compound as claimed in claim 1.
3. The method according to claim 2, wherein the reaction temperature of the o-chloropyridine salt is in the range of 0 to 60 ℃.
4. The method according to claim 3, wherein the reaction temperature of the o-chloropyridine salt is 20 ℃.
5. The method for preparing a polycarbonate resin composition according to claim 2, wherein: the solvent is an aprotic solvent, and the aprotic solvent is selected from acetonitrile, tetrahydrofuran, N-dimethylformamide, dichloromethane and toluene.
6. The method according to claim 5, wherein the aprotic solvent is acetonitrile.
7. The process according to claim 2, wherein the base is cesium carbonate, potassium carbonate, sodium hydroxide, sodium hydride, triethylamine; the dosage of the alkali is 2.0 to 3.0 equivalent of the o-chloropyridine salt.
8. The method according to claim 7, wherein the base is cesium carbonate.
9. The process according to claim 7, wherein the base is used in an amount of 2.0 equivalents based on the amount of the o-chloropyridine salt.
10. The method for preparing polysubstituted indolizines containing pyridones according to claim 1, comprising the steps of:
dissolving an o-chloropyridine salt, arylamine with different substituents on a benzene ring and alkali in a solvent, and stirring until the o-chloropyridine salt is reacted;
the structural formula of the o-chloropyridine salt is as follows:
the structural formula of the arylamine with different substituent groups on the benzene ring is as follows:
said R is 3 、R 4 The compound as claimed in claim 1.
11. The process according to claim 10, wherein the reaction temperature of the o-chloropyridine salt is 20 ℃, the solvent is acetonitrile, the base is cesium carbonate, the amount is 2.0 equivalents of the o-chloropyridine salt, the concentration of the o-chloropyridine salt is 0.1mol/mL, and the concentration of the aromatic amine having a different substituent on the benzene ring is 0.3mol/mL.
12. Use of the compound of claim 1 in the preparation of an antitumor medicament.
13. Use according to claim 12, characterized in that said tumor is selected from glioma, lung cancer, kidney cancer, colon cancer, rectal cancer and liver cancer.
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