CN114573517B - Quinoxaline compound and preparation method and application thereof - Google Patents

Quinoxaline compound and preparation method and application thereof Download PDF

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CN114573517B
CN114573517B CN202210233387.XA CN202210233387A CN114573517B CN 114573517 B CN114573517 B CN 114573517B CN 202210233387 A CN202210233387 A CN 202210233387A CN 114573517 B CN114573517 B CN 114573517B
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闫建伟
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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D241/00Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
    • C07D241/36Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems
    • C07D241/38Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings condensed with carbocyclic rings or ring systems with only hydrogen or carbon atoms directly attached to the ring nitrogen atoms
    • C07D241/40Benzopyrazines
    • C07D241/42Benzopyrazines with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D401/00Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
    • C07D401/02Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
    • C07D401/04Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
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    • C07D409/02Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings
    • C07D409/04Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring-member bond
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    • C07DHETEROCYCLIC COMPOUNDS
    • C07D471/00Heterocyclic 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
    • C07D471/02Heterocyclic 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 quinoxaline compound, a preparation method and application thereof, comprising the following steps of S1: the substituted indole 1 and the 1, 3-dicarbonyl compound 2 substituted by alpha-2, 6-tetramethyl piperidine oxide are subjected to serial reaction in an acid solvent to prepare quinoxaline compounds 3 and S2, wherein R1 is alkyl, alkoxy, halogen, polyfluoroalkyl and nitro; r2 is phenyl, alkyl substituted phenyl, halogen substituted phenyl, thienyl, pyridyl, cyclopropyl; nitro or nitrile, R3 is alkyl, alkoxy, halogen, trifluoromethyl. According to the invention, a series of quinoxaline derivatives are synthesized by the o-phenylenediamine, the substituted indole and the iodinated reagent through multi-step conversion reaction, the synthesis process is simple and easy to control, the structure types of target products are various, and various substituents can be introduced into the 2-position, the 3-position, the 5-position, the 6-position and the 7-position of the quinoxaline structure parent nucleus, so that a foundation is laid for synthesizing the quinoxaline structure-containing drug molecules.

Description

Quinoxaline compound and preparation method and application thereof
Technical Field
The invention relates to the technical field of synthesis and anti-tumor application of quinoxaline derivatives, in particular to a quinoxaline compound, and a preparation method and application thereof.
Background
The existing synthetic method of 2, 3-diaryl is mainly condensation cyclization of o-phenylenediamine and 1, 2-dicarbonyl compound, R2 and R3 structure types in synthetic molecular structure are less, substituents on a left benzene ring are generally symmetrical, and the substitution type of the synthesized compound is relatively monotonous, therefore, we propose a quinoxaline compound and a preparation method and application thereof.
Disclosure of Invention
Therefore, the invention aims to provide a quinoxaline compound, a preparation method and application thereof, wherein a series of quinoxaline derivatives are synthesized by carrying out multi-step conversion reaction on o-phenylenediamine, substituted indole and iodinated reagent, the synthesis process is simple and easy to control, the structure types of target products are various, and various substituents can be introduced into the 2-position, 3-position, 5-position, 6-position and 7-position of a quinoxaline structure parent nucleus, so that a foundation is laid for synthesizing a medicine molecule containing a quinoxaline structure.
In order to solve the technical problems, according to one aspect of the present invention, the following technical solutions are provided:
A quinoxaline compound, a preparation method and application thereof, comprising:
S1: the substituted indole 1 and the 1, 3-dicarbonyl compound 2 substituted by alpha-2, 6-tetramethyl piperidine oxide are subjected to series reaction in an acid solvent to prepare a quinoxaline compound 3;
s2: the reaction equation of the reaction process is:
wherein R1 is alkyl, alkoxy, halogen, polyfluoroalkyl or nitro; r2 is phenyl, alkyl substituted phenyl, halogen substituted phenyl, thienyl, pyridyl, cyclopropyl; nitro or nitrile, R3 is alkyl, alkoxy, halogen, trifluoromethyl.
As a preferred scheme of the quinoxaline compound, the preparation method and the application thereof, the molar ratio of the substituted indole 1 to the iodination reagent to the o-phenylenediamine compound is 1:1-1.1:1.
As a preferable scheme of the quinoxaline compound, the preparation method and the application thereof, the iodination reagent is iodine simple substance, diiodohydantoin or N-iodosuccinimide.
As a preferable scheme of the quinoxaline compound, the preparation method and the application thereof, the reaction temperature in the step S1 is 20-100 ℃.
As a preferable scheme of the quinoxaline compound, the preparation method and the application thereof, 43 quinoxaline compounds are prepared in the step S1.
As a preferable scheme of the quinoxaline compound, the preparation method and the application thereof, the preparation method of the compound 3-1 in 43 quinoxaline compounds is as follows: 0.2mmol of 2-phenylindole and 0.2mmol of NIS are dissolved in 20mL of dimethyl sulfoxide, stirred at room temperature for 2 hours, then 0.2mmol of o-phenylenediamine is added to the reaction mixture, stirred at room temperature for 6 hours, 20mL of water is added to the reaction mixture after the reaction is completed, the reaction mixture is extracted with ethyl acetate for 3 times, the organic phases are combined, the ethyl acetate is removed by rotary evaporation, column chromatography and eluent: petroleum ether: ethyl acetate=10:1, and quinoxaline derivative 3-1, 83% was isolated.
Compared with the prior art, the invention has the following beneficial effects: a series of quinoxaline derivatives are synthesized by multi-step conversion reaction of o-phenylenediamine, substituted indole and iodinated reagent, the synthesis process is simple and easy to control, the structure types of target products are various, various substituents can be introduced into the 2-position, 3-position, 5-position, 6-position and 7-position of a quinoxaline structure parent nucleus, a foundation is laid for synthesizing quinoxaline structure-containing drug molecules, when the preparation method is specifically used, the substituted indole 1 and alpha-position 2, 6-tetramethyl piperidine oxide substituted 1, 3-dicarbonyl compound 2 are subjected to serial reaction in an acid solvent to prepare quinoxaline compounds 3, 43 quinoxaline compounds are prepared in total, and the prepared quinoxaline compounds are sequentially, compound 3-1, compound 3-2, compound 3-3, compound 3-4, compound 3-6, compound 3-7, compound 3-8, compound 3-9, compound 3-10, compound 3-11, compound 3-12, compound 3-13, compound 3-14, compound 3-15, compound 3-16, compound 3-17, compound 3-18, compound 3-19, compound 3-20, compound 3-21, compound 3-22, compound 3-23, compound 3-24, compound 3-25, compound 3-26, compound 3-27, compound 3-28, compound 3-29, compound 3-30, compound 3-31, compound 3-32, compound 3-33, compound 3-34, compound 3-35, compound, compound 3-36, compound 3-37, compound 3-38, compound 3-39, compound 3-40, compound 3-41, compound 3-42, compound 3-43, wherein the preparation method of compound 3-1 comprises the following steps: 0.2mmol of 2-phenylindole and 0.2mmol of NIS are dissolved in 20mL of dimethyl sulfoxide, stirred at room temperature for 2 hours, then 0.2mmol of o-phenylenediamine is added to the reaction mixture, stirred at room temperature for 6 hours, 20mL of water is added to the reaction mixture after the reaction is completed, the reaction mixture is extracted with ethyl acetate for 3 times, the organic phases are combined, the ethyl acetate is removed by rotary evaporation, column chromatography and eluent: petroleum ether: ethyl acetate=10:1, quinoxaline derivative 3-1, 83% is obtained by separation, other kinds of compounds are the same as the preparation method of the compound 3-1, the prepared quinoxaline compound is subjected to application test detection, log phase cells are collected, inoculated onto a 96-hole cell culture plate, and medicine solutions with different concentrations to be detected are added. After 72 hours of incubation, 10% trichloroacetic acid was added, incubated at 4℃for 1 hour, washed 5 times with tap water and air-dried, surviving cells were stained with 0.4% (w/v) sulfonylrhodamine B at room temperature for 20min, washed 5 times with 1% acetic acid, dissolved in 10mM Tris solution, absorbance of each well was measured at 540nm of ELISA, and half-inhibitory concentrations of compounds 3-6, 3-7, 3-17, 3-21, 3-22, 3-34, 3-38 on human lung cancer cells were calculated as 1.2 and 2.4. Mu.M, respectively, based on inhibition (%) = (average of non-drug cell control well A value-average of drug well A value)/average of non-drug cell control well A value X100%.
Detailed Description
The following detailed description of the present invention will provide further details in order to make the above-mentioned objects, features and advantages of the present invention more comprehensible.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in further detail below.
The invention provides a quinoxaline compound, a preparation method and application thereof, wherein a series of quinoxaline derivatives are synthesized by carrying out multi-step conversion reaction on o-phenylenediamine, substituted indole and iodinated reagent, the synthesis process is simple and easy to control, the structure types of target products are various, and various substituents can be introduced into the 2-position, 3-position, 5-position, 6-position and 7-position of a quinoxaline structure parent nucleus, so that a foundation is laid for synthesizing a quinoxaline structure-containing drug molecule.
A quinoxaline compound, a preparation method and application thereof, comprising:
S1: the quinoxaline compound 3 is prepared by the tandem reaction of substituted indole 1 and alpha-2, 6-tetramethyl piperidine oxide substituted 1, 3-dicarbonyl compound 2 in an acid solvent, and the prepared quinoxaline compounds have 43 kinds in total and have the following specific molecular formulas:
s2: the reaction equation of the reaction process is:
wherein R1 is alkyl, alkoxy, halogen, polyfluoroalkyl or nitro; r2 is phenyl, alkyl substituted phenyl, halogen substituted phenyl, thienyl, pyridyl, cyclopropyl; nitro or nitrile, R3 is alkyl, alkoxy, halogen, trifluoromethyl.
Preparation of Compound 3-1
0.2Mmol of 2-phenylindole and 0.2mmol of NIS are dissolved in 20mL of dimethyl sulfoxide, the mixture is stirred at room temperature for 2 hours, then 0.2mmol of o-phenylenediamine is added into the reaction mixture, the mixture is stirred at room temperature for 6 hours, 20mL of water is added after the reaction is completed, the reaction solution is extracted for 3 times by ethyl acetate, the organic phases are combined, the ethyl acetate is removed by rotary evaporation, and column chromatography (eluent: petroleum ether: ethyl acetate=10:1) is separated to obtain quinoxaline derivative 3-1 (83%).
1H NMR(400MHz,CDCl3)δ8.24–8.15(m,1H),8.15–8.06(m, 1H),7.84–7.72(m,2H),7.65–7.52(m,2H),7.42–7.29(m,3H), 7.20–7.08(m,1H),6.91–6.78(m,2H),6.55(t,J=7.5Hz,1H), 4.62(s,2H);
Preparation of Compound 3-2
Compound 3-2 was produced in the same manner as compound 3-1, except that 3, 4-dimethyl-o-phenylenediamine was substituted for o-phenylenediamine.
1H NMR(400MHz,CDCl3)δ7.92(s,1H),7.85(s,1H),7.58–7.51(m,2H),7.34–7.27(m,3H),7.10(td,J=8.1,1.5Hz,1H),6.84(dd,J=7.7,1.4Hz,1H),6.79(d,J=7.6Hz,1H),6.54(td,J=7.6, 1.0Hz,1H),4.57(s,2H),2.52(s,3H),2.51(s,3H).
The preparation method of the compound 3-3, the compound 3-4, the compound 3-6, the compound 3-7, the compound 3-8, the compound 3-9, the compound 3-10, the compound 3-11, the compound 3-12, the compound 3-13, the compound 3-14, the compound 3-15, the compound 3-16, the compound 3-17, the compound 3-18, the compound 3-19, the compound 3-20, the compound 3-21, the compound 3-22, the compound 3-23, the compound 3-24, the compound 3-25, the compound 3-26, the compound 3-27, the compound 3-28, the compound 3-29, the compound 3-30, the compound 3-31, the compound 3-32, the compound 3-33, the compound 3-34, the compound 3-35, the compound 3-36, the compound 3-37, the compound 3-38, the compound 3-39, the compound 3-40, the compound 3-41, the compound 3-42 and the compound 3-43 is the same as the preparation method of the compound 1.
Experimental test examples:
the test principle is as follows: the sulfonyl rhodamine colorimetry is mainly used for detecting the proliferation condition of cells. SRB is a pink anionic dye, readily soluble in water, and specifically binds to basic amino acids of intracellular constituent proteins under acidic conditions; the absorbance peak is generated at the wavelength of 540nm, and the absorbance value is linearly and positively correlated with the cell quantity, so that the method can be used for quantitative detection of the cell quantity.
The test method comprises the following steps:
Sample preparation: dissolving compound in DMSO, ultrasonically dissolving, and storing the obtained medicinal solution at-20deg.C at concentration of 100 mM/L;
The log phase cells were collected, inoculated onto 96 well cell culture plates, and the drug solutions to be tested were added at different concentrations. After 72 hours of incubation, 10% trichloroacetic acid was added, incubated at 4℃for 1 hour, washed 5 times with tap water and air-dried, and surviving cells were stained with 0.4% (w/v) sulforhodamine B for 20min at room temperature, washed 5 times with 1% acetic acid, dissolved in 10mM Tris solution, and absorbance of each well was measured at 540nm in an ELISA.
The test data calculation method comprises the following steps:
Inhibition (%) = (average value of no drug cell control well a value-average value of drug administration well a value)/average value of no drug cell control well a value x 100%.
Based on the experimental results, data on all IC50 values, which are quite close to the normal method, were calculated according to the dot-skew method principle.
The basic formula:
1.IC50:IC50=Log-1[Xm-i×(∑p–0.5)+i/4×(1-Pm-Pn)]
2. LD50 with 0% and 100% mortality:
IC50=Log-1[Xm-i×(∑p–0.5)]
wherein Xm is the dose logarithmic value of the group with highest mortality rate Pm, i is the group distance, pm is the highest mortality rate, pn is the lowest mortality rate, and n is the number of animals in each group.
The activity results are shown in the following table:
From the above anti-tumor activity results, it can be seen that the compounds 3-6, 3-7, 3-17, 3-21, 3-22, 3-34, 3-38 of the present invention have significant cancer cell inhibitory activity, and the half-inhibitory concentrations of the compounds 3-7, 3-17 on human lung cancer cells are 1.2 and 2.4. Mu.M, respectively.
In specific use, 1, 3-dicarbonyl compound 2 substituted by substituted indole 1 and alpha-position 2, 6-tetramethylpiperidine oxide is subjected to serial reaction in an acid solvent to prepare 3 quinoxaline compounds, 43 quinoxaline compounds are prepared, and the three are sequentially 3-1, 3-2, 3-3, 3-4, 3-6, 3-7, 3-8, 3-9, 3-10, 3-11, 3-12, 3-13, 3-14, 3-15, 3-16, 3-17, 3-18, 3-19, 3-20, 3-21, 3-22, 3-23, 3-24, 3-25, 3-26, 3-27, 3-34, 3-30, 3-35, 3-34, 3-30, 3-34, 3-30, 3-35, 3-34 and 43 are prepared, wherein the three are prepared by the steps of: 0.2mmol of 2-phenylindole and 0.2mmol of NIS are dissolved in 20mL of dimethyl sulfoxide, stirred at room temperature for 2 hours, then 0.2mmol of o-phenylenediamine is added to the reaction mixture, stirred at room temperature for 6 hours, 20mL of water is added to the reaction mixture after the reaction is completed, the reaction mixture is extracted with ethyl acetate for 3 times, the organic phases are combined, the ethyl acetate is removed by rotary evaporation, column chromatography and eluent: petroleum ether: ethyl acetate=10:1, quinoxaline derivative 3-1, 83% is obtained by separation, other kinds of compounds are the same as the preparation method of the compound 3-1, the prepared quinoxaline compound is subjected to application test detection, log phase cells are collected, inoculated onto a 96-hole cell culture plate, and medicine solutions with different concentrations to be detected are added. After 72 hours of incubation, 10% trichloroacetic acid was added, incubated at 4℃for 1 hour, washed 5 times with tap water and air-dried, surviving cells were stained with 0.4% (w/v) sulfonylrhodamine B at room temperature for 20min, washed 5 times with 1% acetic acid, dissolved in 10mM Tris solution, absorbance of each well was measured at 540nm of ELISA, and half-inhibitory concentrations of compounds 3-6, 3-7, 3-17, 3-21, 3-22, 3-34, 3-38 on human lung cancer cells were calculated as 1.2 and 2.4. Mu.M, respectively, based on inhibition (%) = (average of non-drug cell control well A value-average of drug well A value)/average of non-drug cell control well A value X100%.
Although the invention has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (1)

1. Use of a quinoxaline compound in the manufacture of a medicament for inhibiting human lung cancer, wherein the compound is as follows:
CN202210233387.XA 2022-03-10 2022-03-10 Quinoxaline compound and preparation method and application thereof Active CN114573517B (en)

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WO2015161142A1 (en) * 2014-04-18 2015-10-22 Millennium Pharmaceuticals, Inc. Quinoxaline compounds and uses thereof
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AU2003226271B2 (en) * 2002-04-08 2007-10-18 Merck Sharp & Dohme Corp. Fused quinoxaline derivatives as inhibitors of Akt activity
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CN104995182A (en) * 2013-02-07 2015-10-21 默克专利股份公司 Substituted quinoxaline derivatives and their use as positive allosteric modulators of mglur4
WO2015161142A1 (en) * 2014-04-18 2015-10-22 Millennium Pharmaceuticals, Inc. Quinoxaline compounds and uses thereof
CN105017167A (en) * 2015-07-20 2015-11-04 新乡医学院 Preparation method of quinoxaline compounds
CN110627732A (en) * 2019-10-12 2019-12-31 同济大学 Method for synthesizing nitroquinoxaline or derivative thereof and aminoquinoxaline or derivative thereof

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Title
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