CN109053725A - A kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1,8- naphthyridine type compound and the preparation method and application thereof - Google Patents

A kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1,8- naphthyridine type compound and the preparation method and application thereof Download PDF

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CN109053725A
CN109053725A CN201810973000.8A CN201810973000A CN109053725A CN 109053725 A CN109053725 A CN 109053725A CN 201810973000 A CN201810973000 A CN 201810973000A CN 109053725 A CN109053725 A CN 109053725A
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tetrahydroquinoline
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CN109053725B (en
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陈修文
张珉
李亦彪
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Jiangmen Zhuanyi Information Technology Co ltd
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Wuyi University
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Abstract

The invention discloses a kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1,8- naphthyridine type compounds and the preparation method and application thereof, and the general molecular formula of the compound is shown in formula I:Wherein, R in the Formulas I1For phenyl, nitrobenzene or halogenophenyl;R2For hydrogen or methyl;R3For hydrogen or methyl;R4For hydrogen or methyl.The preparation method comprises the following steps: S1, in the reaction vessel, Tetrahydroquinolinesas and 1 is added, after 8 naphthyridine type compounds, 1~5% metallic catalyst of Tetrahydroquinolinesas quality is added, acid and solvent are added, is stirred to react at 80 DEG C~160 DEG C 5~24 hours;S2, it is cooled to room temperature, filters after reaction, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude by column chromatography purifies to obtain.

Description

A kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1,8- naphthyridine type compound and its preparation Method and application
Technical field
The present invention relates to medication chemistry synthesis technical fields, and in particular to a kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1, 8- naphthyridine type compound and the preparation method and application thereof.
Background technique
In recent years, heterocyclic compound, especially nitrogenous heterocyclic compound play heavy to closing in modern medicines research The effect wanted, the construction method for developing efficient nitrogen-containing heterocycle compound have also attracted more and more concerns.Naphthyridines azacyclo- Compound is a kind of particularly important heterocyclic system, is common in pharmaceutical intermediate and a variety of natural products, is had potential raw Object activity.Wherein, Tetrahydronaphthyridderivates are also a kind of important heterocyclic system, in organic intermediate, medicine, pesticide, material science etc. Field all has wide practical use.In addition, tetrahydro chinolines organic compound is a kind of relatively conventional nitrogen heterocyclic, Its unique molecular structure is largely present in nature, its various derivatives all have biology and pharmacological activity mostly.From Most of biologically active natural products all contains one or more azepine ring skeleton in right boundary.By single heterocyclic compound When object combines to form new double heterocycles or more heterocycle structures, often retain original bioactivity, and can generate imaginary Less than new features.Therefore, promote the coupling between nitrogen heterocyclic, form functional more superior dinitrogen heterocyclic compound It is the hot spot of current research.
With the development of organic chemistry and material, medical cross discipline development, scientists are from nitrogen-containing heterocycle compound In have found a large amount of new drugs and novel functional material, the dinitrogen jeterocyclic chemistry that two heterocycles are combined in different ways Close object plays highly important role in terms of biological medicine and functional material.Tetrahydroquinoline and naphthyridines structure are azepine cyclisation The basic framework of object is closed, all contains these structures in the molecular structure of many natural products, and some compounds can be shown Good bioactivity.Carbon-carbon bond coupling is always the hot and difficult issue of organic field research between two nitrogen heterocyclics, The more complicated dinitrogen heterocyclic skeleton molecule of structure will could synthesize greatly by being permitted multistep reaction, and not only operating procedure is extremely numerous It is trivial, and atom and step economy are low, therefore, in the synthesis of complicated dinitrogen heterocycle, reduction synthetic route is to improve complicated nitrogen A kind of effective means of heterocyclic compound ultimate yield.However, for the synthesis side of tetrahydroquinoline and naphthyridines building dinitrogen heterocycle Method does not have document to be reported so far using no metal catalytic, this is based on, if a kind of non-metal catalyst can be moused out Synthetic method participate in, green, efficient, easy to operate, will carry out between tetrahydroquinoline and Tetrahydronaphthyridderivates structural unit Efficient combination, building is a series of will to be of great significance containing the active dinitrogen heterocyclic skeleton molecule of potential drug.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of couple of inhibited 2- of tumour (1,2,3,4- tetra- Hydrogen quinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type compound and the preparation method and application thereof.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted by the present invention are as follows: 2- (1,2,3,4- tetrahydroquinoline- 6- yl) -1,2,3,4- tetrahydro -1,8- naphthyridine type compounds, the general molecular formula of the compound is as shown in following formula I:
Wherein, R in the Formulas I1For phenyl, nitrobenzene or halogenophenyl;R2For hydrogen or methyl;R3For hydrogen or methyl;R4For Hydrogen or methyl.
The invention also includes above-mentioned 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type chemical combination The preparation method of object, comprising the following steps:
Tetrahydroquinolinesas and 2- phenyl -3- methyl-1,8 naphthyridine type compounds are added in S1, in the reaction vessel Afterwards, 1~5% metallic catalyst (Catalyst, Cat.) of Tetrahydroquinolinesas quality is added, adds sour and molten Agent is stirred to react 5~24 hours at 80 DEG C~160 DEG C, wherein the Tetrahydroquinolinesas and 1,8 naphthyridine type chemical combination The molar ratio of object is 1~2: 1, and the quality of the acid is the 10~100% of Tetrahydroquinolinesas quality, wherein described four Hydrogen quinolines are preferably 2- methyl-tetrahydro quinoline or 8- methyl-tetrahydro quinoline, and described 1,8 naphthyridine type compounds are preferred 2- phenyl -3- methyl-1 after being replaced for phenyl by halogen or nitro, 8 naphthyridine type compounds;
S2, it is cooled to room temperature, filters after reaction, vacuum rotary steam, which removes solvent, can be obtained crude product, crude product warp Column Chromatographic purification obtains 2- tetrahydric quinoline group-Tetrahydronaphthyridderivates class compound.
Further, the room temperature is 20~30 DEG C.
Further, in the step S1, the metallic catalyst is copper acetate, copper trifluoromethanesulfcomposite, copper sulphate, chlorination The mixing of one or more of copper, stannous chloride, iron chloride, cobalt acetate, cobalt chloride, manganese acetate.
As can be seen from the above description, the beneficial effects of the present invention are: it can be realized effectively using cheap metallic catalyst Catalysis, greatly reduce production cost.
Further, solvent described in the step S1 is ethyl alcohol, tert-pentyl alcohol, isopropanol, Isosorbide-5-Nitrae-dioxane, N, N- diformazan The mixing of one or more of base formamide, dimethyl sulfoxide, toluene, paraxylene and water;The addition of the solvent Amount and the molal volume ratio of Tetrahydroquinolinesas are preferably Tetrahydroquinolinesas: solvent=0.5mmol:1~3ml.
Further, acid described in the step S1 is formic acid, acetic acid, methanesulfonic acid, benzoic acid, p-methyl benzenesulfonic acid, hydrochloric acid, three The mixing of one or more of fluorine methanesulfonic acid, trifluoroacetic acid;The acid is excellent with the molar ratio of Tetrahydroquinolinesas It is selected as Tetrahydroquinolinesas: acid=0.5mmol:0.05mmol.
Further, reaction vessel described in the step S1 is preferably schlenk pipe (Schlenk pipe), and reaction process is excellent Choosing carries out under a nitrogen atmosphere.
Further, the eluent that uses of the operation of column Chromatographic purification described in the step S2 is for volume ratio
(0.5~50): (0~20): 1 petroleum ether: methylene chloride: the mixed solution of ethyl acetate.
Wherein, part reaction equation involved in above-mentioned preparation method is as follows:
Wherein, the R1For phenyl, nitrobenzene, halogenic substituent benzene;R2For hydrogen or methyl;R3For hydrogen or methyl;R4For Hydrogen or methyl.
The invention also includes above-mentioned 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type chemical combination Object is preparing anti-tumor agent comprising salmosin or is preventing and treating the application in tumour medicine.
Further, the application is the reagent or medicine in anti-human cancer K562, HL-60, HeLa and/or BGC-823 cell In object.
The beneficial effects of the present invention are: the present invention provides a kind of 2- (1,2,3,4- tetrahydros with anti-tumor activity Quinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type compounds and the preparation method and application thereof, it efficiently solves with anti- The preparation problem of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine compounds of tumor promotion.It is logical Crossing preparation method of the invention can be efficiently synthesized 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridines Class dinitrogen heterocyclic compound has many advantages, such as that simple synthesis step, safe operation, advantages of nontoxic raw materials and raw material are cheap and easy to get, this hair Bright preparation process is selectively good and Atom economy is high, and obtained dinitrogen heterocycle product structure novel can further develop its life Object activity;Novel 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type compound pair of the invention Experimenter's cancer K562, HL-60, HeLa, BGC-823 cell has good inhibiting effect, and therefore, such compound is both as anti- Tumor reagent is in anti tumor activity in vitro screening, it can also be used in the drug of anti-curing oncoma.
Detailed description of the invention
Fig. 1 is the hydrogen spectrogram of product 3a made from the embodiment of the present invention 1;
Fig. 2 is the carbon spectrogram of product 3a made from the embodiment of the present invention 1;
Fig. 3 is the hydrogen spectrogram of product 3b made from the embodiment of the present invention 2;
Fig. 4 is the carbon spectrogram of product 3b made from the embodiment of the present invention 2;
Fig. 5 is the hydrogen spectrogram of product 3c made from the embodiment of the present invention 3;
Fig. 6 is the carbon spectrogram of product 3c made from the embodiment of the present invention 3;
Fig. 7 is the hydrogen spectrogram of product 3d made from the embodiment of the present invention 4;
Fig. 8 is the carbon spectrogram of product 3d made from the embodiment of the present invention 4;
Fig. 9 is the hydrogen spectrogram of product 3e made from the embodiment of the present invention 5;
Figure 10 is the carbon spectrogram of product 3e made from the embodiment of the present invention 5.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and cooperate attached Figure is explained.
The embodiment of the present invention 1 is a kind of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3 with anti-tumor activity, The preparation method of 4- tetrahydro -1,8- naphthyridines, comprising the following steps: in the reactor, 1.0 mMs of tetrahydroquinolines and 0.5 is added MM 2- phenyl -3- methyl-1,8- naphthyridines are added 1% copper trifluoromethanesulfcomposite (Catalyst, Cat.), add 50% Trifluoromethanesulfonic acid, 1.5ml toluene is stirred to react 5 hours at 80 DEG C, is cooled to room temperature after reaction, dilute reaction solution, Filtering, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude by column chromatography purifies to obtain 3a, which is in yellow oil Shape.
Hydrogen spectrogram and carbon the spectrogram difference of products therefrom 3a is as depicted in figs. 1 and 2, and structural characterization data are as follows:
1H NMR(400MHz,CDCl3):
δ 7.49 (d, J=7.5Hz, 2H), 7.40 (t, J=7.5Hz, 2H), 7.32 (t, J=7.2Hz, 1H), 7.12 (s, 1H), 6.95 (d, J=7.7Hz, 2H), 6.43 (d, J=7.8Hz, 1H), 4.98 (s, 1H), 4.44 (dd, J=9.1,2.8Hz, 1H),3.33-3.23(m,2H),2.89-2.80(m,1H),2.76-2.66(m,3H),2.18(s,3H),2.11-2.05(m, 1H),1.96-1.86(m,3H);
13C NMR(101MHz,CDCl3):
δ154.28,144.15,141.15,139.07,132.32,128.95,128.02,127.43,127.35, 124.77,121.45,118.86,114.72,114.18,55.79,42.02,30.92,27.04,25.53,22.20,18.77;
Products therefrom 3a is measured into its infrared suction by infrared spectrometer (infrared spectrometer, IR (KBr)) Spectral results discovery is received, the compound is in 2928,1588,1452,1308,1131,819,750,699cm-1There is characteristic absorption at place Peak shows the present invention program and the product with target group has been made.
Pass through the high-resolution mass spectrometer (High of electrospray ionisation source (Electron Spray Ionization, ESI) Resolution Mass Spectrometer, HRMS) measure the molecular weight of the compound, C24H26N3[M+H]+: theoretical value (Calculated value, Calcd.): 356.2121;Actually measured value (found): 356.2125.
The embodiment of the present invention 2 is a kind of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- with anti-tumor activity The preparation method of tetrahydro -1,8- naphthyridine type compound, comprising the following steps: in the reactor, 0.8 mM of 2- methyl four is added The iron chloride of 2- methyl tetrahydroquinoline quality 5% is added in hydrogen quinoline and 0.5 mM of 2- phenyl -3- methyl-1,8- naphthyridines, then 60% methanesulfonic acid is added, 1.0ml toluene is stirred to react 12 hours at 160 DEG C, is cooled to room temperature after reaction, dilutes Reaction solution, filtering, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude by column chromatography purifies to obtain product 3b, described Product 3b is in yellow oily.
Hydrogen spectrogram and carbon the spectrogram difference of products therefrom 3b is as shown in Figure 3 and Figure 4, and structural characterization data are as follows:
1H NMR(400MHz,CDCl3) δ 7.87 (d, J=4.8Hz, 1H), 7.18 (d, J=7.1Hz, 1H), 6.95 (d, J =9.8Hz, 2H), 6.54-6.47 (m, 1H), 6.44 (d, J=7.9Hz, 1H), 5.04 (s, 1H), 4.43 (dd, J=9.0, 2.8Hz,1H),3.55-3.28(m,1H),2.88-2.77(m,2H),2.72-2.64(m,2H),2.11-2.02(m,1H), 1.97-1.82 (m, 2H), 1.65-1.53 (m, 1H), 1.21 (d, J=6.2Hz, 3H);
13C NMR(101MHz,CDCl3)δ156.41,145.85,144.28,136.02,132.11,127.20, 124.78,121.15,115.94,113.99,112.70,55.72,47.21,30.54,30.10,26.63,25.84,22.59;
IR (KBr) the result shows that, product 3b 2936,2845,1860,1819,1489,1352,1330,1292,1194, 1170、771、739cm-1There is characteristic absorption peak, which has target group.
Pass through the high-resolution mass spectrometer (High of electrospray ionisation source (Electron Spray Ionization, ESI) Resolution Mass Spectrometer, HRMS) measure the molecular weight of the compound, C18H22N3[M+H]+Theoretical value (Calcd.):280.1808;Actually measured value (found): 280.1804.
The embodiment of the present invention 3 is a kind of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3 with anti-tumor activity, The preparation method of 4- tetrahydro -1,8- naphthyridine type compound, comprising the following steps: in the reactor, 0.75 mM of 2- first is added Base tetrahydroquinoline and 0.5 mM of 2- (3- nitrobenzophenone) -1,8- naphthyridines, the cobalt acetate that 2- methyl tetrahydroquinoline 2% is added are urged Agent, adds 10% p-methyl benzenesulfonic acid, and 1.2ml toluene is stirred to react 15 hours at 130 DEG C, cools down after reaction To room temperature, dilute reaction solution, filtering, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude by column chromatography purifies to obtain Product 3c, the product 3c are in yellow oily.
Hydrogen spectrogram and carbon the spectrogram difference of products therefrom 3c is as shown in Figure 5 and Figure 6, and structural characterization data are as follows:
1H NMR(400MHz,CDCl3) δ 8.80 (s, 1H), 8.27 (d, J=7.8Hz, 1H), 8.16 (d, J=8.1Hz, 1H), 7.56 (d, J=7.9Hz, 1H), 7.30 (d, J=7.4Hz, 1H), 7.03 (d, J=7.4Hz, 1H), 6.96 (d, J= 12.5Hz, 2H), 6.45 (d, J=8.0Hz, 1H), 5.19 (s, 1H), 4.47 (d, J=7.5Hz, 1H), 3.72 (s, 1H), 3.44-3.37 (m, 1H), 2.89-2.70 (m, 4H), 2.11 (dd, J=12.9,3.9Hz, 1H), 2.00-1.91 (m, 2H), 1.64-1.53 (m, 1H), 1.21 (d, J=6.2Hz, 3H);
13C NMR(101MHz,CDCl3)δ156.39,151.04,148.69,144.37,141.66,136.77, 132.30,131.79,129.29,127.22,124.82,122.68,121.47,121.19,116.17,114.00,109.58, 55.80,47.23,30.42,30.12,26.66,25.70,22.59;
IR (KBr) the result shows that, product 3c 3415,1638,1618,1527,1442,1348,1121,870,792, 734cm-1There is characteristic absorption peak, which has target group.
Pass through the high-resolution mass spectrometer (High of electrospray ionisation source (Electron Spray Ionization, ESI) Resolution Mass Spectrometer, HRMS) measure the molecular weight of the compound, Calcd.for C24H25N4O2[M+ H]+:401.1972;found:401.1975.
The embodiment of the present invention 4 is a kind of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3 with anti-tumor activity, The preparation method of 4- tetrahydro -1,8- naphthyridine type compound, comprising the following steps: in the reactor, 0.8 mM of 8- methyl is added The acetic acid copper catalyst of 8- methyl tetrahydroquinoline 3% is added in tetrahydroquinoline and 0.4 mM of 2- (4- chlorphenyl) -1,8- naphthyridines, 50% trifluoroacetic acid is added, 1.2ml tert-pentyl alcohol is stirred to react 10 hours at 100 DEG C, is cooled to room after reaction Temperature, dilute reaction solution, filtering, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude by column chromatography purifies to obtain product 3d, the product 3d are in brown solid, and fusing point is 140-141 DEG C.
Hydrogen spectrogram and carbon the spectrogram difference of products therefrom 3d is as shown in Figure 7 and Figure 8, and structural characterization data are as follows:
1H NMR(400MHz,CDCl3) δ 7.86 (d, J=8.5Hz, 2H), 7.36 (d, J=8.5Hz, 2H), 7.25 (t, J =3.7Hz, 1H), 6.93 (d, J=7.5Hz, 1H), 6.88 (d, J=10.2Hz, 2H), 5.15 (s, 1H), 4.44 (dd, J= 9.1,3.1Hz,1H),3.40-3.30(m,2H),2.87-2.71(m,4H),2.12-2.07(m,1H),2.07(s,3H), 1.96-1.88(m,3H);
13C NMR(101MHz,CDCl3)δ156.18,152.54,142.20,138.28,136.76,134.12, 131.35,128.61,127.87,125.96,125.34,121.33,120.91,115.09,109.37,55.89,42.36, 30.75,27.36,25.81,22.14,17.22;
IR (KBr) the result shows that, product 3d 2928,2857,1665,1627,1594,1462,1304,1088,806, 752cm-1There is characteristic absorption peak, which has target group.
Pass through the high-resolution mass spectrometer (High of electrospray ionisation source (Electron Spray Ionization, ESI) Resolution Mass Spectrometer, HRMS) measure the molecular weight of the compound, Calcd.for C24H25ClN3[M+ H]+:390.1731;found:390.1735.
The embodiment of the present invention 5 is a kind of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3 with anti-tumor activity, The preparation method of 4- tetrahydro -1,8- naphthyridine type compound, comprising the following steps: in the reactor, 0.4 mM of 8- methyl is added Tetrahydroquinoline and 0.4 mM of 2- (4- bromophenyl) -1,8- naphthyridines, the copper chloride that 8- methyl tetrahydroquinoline quality 3% is added are urged Agent, adds 80% p-methyl benzenesulfonic acid, 1.2ml paraxylene, is stirred to react 10 hours at 150 DEG C, after reaction It is cooled to room temperature, dilute reaction solution, filters, vacuum rotary steam, which removes solvent, can be obtained crude product, crude by column chromatography purification 3e is obtained, the product 3e is in yellow solid, and fusing point is 173-174 DEG C.
Hydrogen spectrogram and carbon the spectrogram difference of products therefrom 3e is as shown in Figure 9 and Figure 10, and structural characterization data are as follows:
1H NMR(400MHz,CDCl3) δ 7.84 (d, J=8.4Hz, 2H), 7.55 (d, J=8.4Hz, 2H), 7.32-7.27 (m, 1H), 6.97 (d, J=7.5Hz, 1H), 6.92 (d, J=10.3Hz, 2H), 5.18 (s, 1H), 4.48 (dd, J=9.2, 3.0Hz,1H),3.46-3.36(m,2H),2.90-2.75(m,4H),2.18-2.11(m,1H),2.11(s,3H),1.99- 1.88(m,3H);
13C NMR(101MHz,CDCl3)δ156.21,142.20,136.76,131.56,131.34,128.19, 125.96,125.34,122.42,121.33,120.90,115.17,109.34,55.89,42.36,30.75,27.37, 25.83,22.14,17.22;
IR (KBr) the result shows that, product 3e is in 2928,1633,1591,1501,1462,1321,807cm-1There is feature Absorption peak, the product have target group.
Pass through the high-resolution mass spectrometer (High of electrospray ionisation source (Electron Spray Ionization, ESI) Resolution Mass Spectrometer, HRMS) measure the molecular weight of the compound, Calcd.for C24H25BrN3[M+ H]+:434.1226;found:434.1224.
By noval chemical compound 3a-3e obtained by above-described embodiment 1-5, anti-tumor activity test is carried out: by each compound It is configured to 100 μ gmL respectively-1Methanol solution, positive control drug 5 FU 5 fluorouracil (5-fluorouracil, 5-FU) and more Alkene taxol (docetaxol) is made into 100 μ gmL respectively-1Dimethyl sulfoxide (Dimethyl sulfoxide, DMSO) it is molten Liquid, respectively using methanol and DMSO solvent as blank control, using tetramethyl azo azoles salt (methyl thiazolyl Tetrazolium method, MTT) method tests each compound to the inhibiting effect of K562, HL-60, HeLa, BGC-823 cell, Concrete operations are as follows:
1, the preparation of cell culture fluid: one bag of RPMI-1640 culture medium powder (net content 10.4g) is taken to pour into clean In beaker, dissolved with the ultra-clean water of 900mL, and 100mgmL is added-1Streptomysin 1mL, penicillin 0.5mL and NaHCO3 2g.After magnetic agitation is uniform, removed with autoclaved Cai Shi (Zeiss) filter through 0.22 μm of membrane filtration in super-clean bench Bacterium, filtrate are directly stored in (450mL/ bottles) in the vial after moist heat sterilization.Culture medium is before use, take the blood of freezing Clearly, after 56 DEG C of inactivation 30min, addition has prepared in RPMI-1640 culture solution and (50mL serum has been added in 450mL culture medium), gently After jog is even, covers, sealed with masking foil, saved in 4 DEG C of refrigerators.
MTT solution is prepared: the MTT powder of 50mg is dissolved in the PBS solution of 10mL, with 0.22 μm of membrane filtration, in 4 It is saved in DEG C refrigerator.
2, anti-tumor activity test: take respectively growth logarithmic phase K562, HL-60, HeLa, BGC-823 cell, in 4 DEG C, It is centrifuged 3min on 3000rpm centrifuge, sucks supernatant, fresh RPMI-1640 culture medium is added and is diluted to 1 × 105A/milli The cell suspension risen.Every 200 μ L of hole is inoculated in 96 orifice plates, in 37 DEG C, 5%CO2Cell incubator in cultivate 1h after, every hole Respectively plus 2 μ L of sample solution, each sample set 3 parallel holes, separately set the blank control in two groups of each three holes, with the same terms after sample-adding Culture is for 24 hours.After for 24 hours, cell is observed under an optical microscope whether there is or not metamorphosis, preliminary judgement sample has missing cytotoxic activity, It takes pictures when necessary.5mgmL is added in every hole-1Each 20 μ L of MTT solution, continue in incubator to cultivate 4h.Take out 96 orifice plates It is centrifuged (4 DEG C, 2000rpm, 20min) and removes supernatant, every hole adds 150 μ L DMSO, and sufficiently oscillation keeps violet precipitate complete Dissolution.Its optical density OD value is measured under 570nm in microplate reader, every group of sample is averaged and by inhibiting rate (inhibition rate, IR) %=(ODBlank-ODSample)/ODBlank× 100% formula calculates.
It is miscellaneous that mtt assay tests five kinds of 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type dinitrogens Cyclics are as shown in table 1 to the proliferation activity suppression result of four kinds of tumour cells:
Result of the table 1MTT method test class compound to the proliferation activity inhibiting effect of four kinds of tumour cells
The compound made from the present invention program it can be seen from upper table 1 is equal to K562, HL-60, HeLa, BGC-823 cell With certain inhibiting effect.
In conclusion a kind of 2- (tetrahydroquinoline -6- base)-tetrahydro -1,8- naphthyridine type compound provided by the invention and its Preparation method and application, such compound on tumor is inhibited, and the preparation method of the present invention program is environmentally protective and passes through It helps profitable, there is good production application prospect.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, similarly include In scope of patent protection of the invention.

Claims (10)

1. a kind of -1,2,3,4- tetrahydro -1,8- naphthyridine type compounds of 2- (1,2,3,4- tetrahydroquinoline -6- base), it is characterised in that: The general molecular formula of the compound is as shown in following formula I:
Wherein, R in the Formulas I1For phenyl, nitrobenzene or halogenophenyl;R2For hydrogen or methyl;R3For hydrogen or methyl;R4For hydrogen or Methyl.
2. a kind of preparation method of -1,2,3,4- tetrahydro -1,8- naphthyridine type compounds of 2- (1,2,3,4- tetrahydroquinoline -6- base), It is characterized by comprising following steps:
S1, in the reaction vessel, is added Tetrahydroquinolinesas and 1, and after 8- naphthyridine type compound, tetrahydro chinolines are added 1~5% metallic catalyst for closing amount of substance adds acid and solvent, is stirred to react at 80 DEG C~160 DEG C 5~24 hours, Wherein, the Tetrahydroquinolinesas and 1, the molar ratio of 8- naphthyridine type compound are 1~2: 1, and the quality of the acid is four The 10~100% of hydrogen quinolines quality;
S2, it is cooled to room temperature, filters after reaction, vacuum rotary steam, which removes solvent, can be obtained crude product, and crude product is through column layer Analysis purification obtains the 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type compound.
3. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close the preparation method of object, it is characterised in that: in the step S1, the metallic catalyst is copper acetate, copper trifluoromethanesulfcomposite, sulphur The mixing of one or more of sour copper, copper chloride, stannous chloride, iron chloride, cobalt acetate, cobalt chloride, manganese acetate.
4. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close the preparation method of object, it is characterised in that: solvent described in the step S1 is ethyl alcohol, tert-pentyl alcohol, isopropanol, Isosorbide-5-Nitrae-dioxy six The mixing of one or more of ring, N,N-dimethylformamide, dimethyl sulfoxide, toluene, paraxylene and water.
5. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close the preparation method of object, it is characterised in that: the molal volume ratio of the additional amount of the solvent and Tetrahydroquinolinesas is four Hydrogen quinoline: solvent=0.5mmol:1~3ml.
6. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close object preparation method, it is characterised in that: acid described in the step S1 be formic acid, acetic acid, methanesulfonic acid, benzoic acid, to toluene sulphur The mixing of one or more of acid, hydrochloric acid, trifluoromethanesulfonic acid, trifluoroacetic acid.
7. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close the preparation method of object, it is characterised in that: the molar ratio of the acid and Tetrahydroquinolinesas is Tetrahydroquinolinesas: Acid=0.5mmol:0.05mmol.
8. 2- (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type according to claim 2 Close the preparation method of object, it is characterised in that: column Chromatographic purification described in the step S2 operates the eluent used and is for volume ratio (0.5~50): (0~20): 1 petroleum ether: methylene chloride: the mixed solution of ethyl acetate.
9. a kind of 2- as described in claim 1 (1,2,3,4- tetrahydroquinoline -6- base) -1,2,3,4- tetrahydro -1,8- naphthyridine type Compound is preparing anti-tumor agent comprising salmosin or is preventing and treating the application in tumour medicine.
10. application as claimed in claim 9, it is characterised in that: the application be anti-human cancer K562, HL-60, HeLa and/ Or in the reagent or drug of BGC-823 cell.
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