CN106632063B - Compound I and compound II based on phenanthro- imidazoles and its preparation method and application - Google Patents

Compound I and compound II based on phenanthro- imidazoles and its preparation method and application Download PDF

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CN106632063B
CN106632063B CN201510730596.5A CN201510730596A CN106632063B CN 106632063 B CN106632063 B CN 106632063B CN 201510730596 A CN201510730596 A CN 201510730596A CN 106632063 B CN106632063 B CN 106632063B
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carboxylic acid
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naphthalene
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CN106632063A (en
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唐本忠
王志明
赵祖金
秦安军
张晓娟
于大伟
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HKUST Shenzhen Research Institute
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    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
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Abstract

The present invention relates to compound I and compound II and its preparation method and application to realize the adjusting to the luminescent color, efficiency of above compound by introducing different substituent structures at Ar;Effective containment compound loss of efficiency in the solid state realizes high fluorescence quantum yield under the conditions of its water system;By selecting different amino carboxylic acid structures as reactant, different carboxylic acid structures is introduced at N1 phenyl ring, and various carboxylic acid derivative structures are prepared by method appropriate, with molecule compatibility, the recognition capability etc. for improving above compound structure.Compound I and compound II is as a kind of novel probe structure, phenanthro- imidazolyl carboxylic acid and carboxylic acid derivates can freely pass in and out cell, and Selective recognition and imaging are carried out to specific structure, make it in biology, medical treatment, health and monitoring field, there is extremely wide application prospect.

Description

Compound I and compound II based on phenanthro- imidazoles and its preparation method and application
Technical field
The present invention relates to analysis and detection technique fields, more specifically to compound I and compound II and its preparation Methods and applications.
Background technique
With the fast development of national economy and the continuous improvement of living standards of the people, the real-time prison of personal health It surveys, the prevention and treatment of disease are increasingly becoming the livelihood issues that people focus more on.It is examined relative to traditional iii vitro chemical The harmfulness of retardance and radioactive ray on-line checking, the online imaging technique of fluorescence with its efficiently, green, strong real-time advantage gradually The visual field for gradually entering into people is widely used in cellular immunology, microbiology, molecular biology, science of heredity, nerve biology The fields such as the scientific research of, pathology, oncology, Clinical laboratory medicine, medicine, botany etc. and the people's livelihood.
The key technology of fluorescent imaging technology is exactly selection of the fluorescent material as label probe (or coloring agent).Preferably Probe molecule is by physically or chemically acting on, and specific adsorption is in specific cell and tissue, under low energy Optical irradation Two dimension or three-dimensional imaging are realized, by the health condition for judging cell or tissue with fluorescence color, intensity and distribution situation. Compared with common chemical staining, the sensitivity of fluorescent staining will be higher by 100-1000 times, and pass through functionalized modification appropriate The on-line analysis to living body can be realized.
In general, fluorescence probe structure is made of the part 2-3, that is, the primitive that shines, link primitive (optional) and Recognition unit.Its In, luminous primitive be mainly responsible for extraneous environmental stimulus (light, electric or magnetic effect) realize it is efficient shine, and then believed by the external world The detection of number detection device becomes visual information;Recognition unit mainly plays identification to cell or intracorporal targeting target and makees With to improve the stationkeeping ability of probe;The two is mainly chained up by link primitive, has luminous position and detected structure There is stable corresponding relationship, guarantees the accuracy of detection process.In practical applications, it was prepared to simplify fluorescence probe structure Journey and cost being reduced, the Recognition unit and luminescent core of fluorescence probe can also be served as by the same chemical structure in probe molecule, But the luminescence mechanism and recognition reaction of this and compound have much relations, can neither interfere with each other, realize quick response again With height differentiate, this by be fluorescence probe future development main flow direction.
Phenanthro- imidazoles is luminous efficiency with higher, excellent photo and thermal stability, opposite as a kind of advanced luminescent material Balance carrier injection transmittability, present biggish application potential in field of light emitting materials;Meanwhile phenanthro- imidazoles It is the precursor structure of a kind of anti-cancer type drug, illustrates it with certain molecular recognition and stationkeeping ability.Although above two excellent The combination of gesture makes phenanthro- imidazoles meet the requirement that a kind of ideal fluorescence probe constructs primitive, but this kind of Gao Fang of phenanthro- imidazoles The biocompatibility of fragrance condensed ring is poor, and identifies that stationkeeping ability is poor, can not also be applied as fluorescence probe, need to draw Enter other groups its performance is adjusted.
Summary of the invention
The purpose of the present invention is to provide general structure be Formulas I and the compound of Formula II and its preparation method and application, i.e., Compound I and compound II and its preparation method and application, be specifically to provide a kind of carboxylic acid replaced based on phenanthro- imidazoles N1 and Carboxylic acid derivates, solve phenanthro- glyoxaline compound in the prior art be not possible to realize asked as what fluorescence probe was applied Topic.
The technical proposal for solving the technical problem of the invention is: a kind of compound of Formulas I has the following structure logical Formula:
Wherein, Ar indicates aromatic group or its derivative structure, Ar be selected from phenyl, tolyl, naphthalene, furyl, thienyl, Pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carbazyl, anilino-, triphenylethylene, tetraphenylethylene and its phase One of derivative structure answered;R is selected from hydroxyl, halogen, alkoxy, fragrance phenolic group, amido and aromatic amino and its accordingly One of derivative;G1 and G2 respectively indicates any substituent group of any position on phenanthrene ring.
In the compound of formula I, G1 and G2 respectively indicate hydrogen.
The present invention also provides the preparation methods of the compound of above-mentioned Formulas I, include the following steps:
S1, by fragrant aldehyde derivativesPhenanthrenequione derivativeAmmonium acetate and aminobenzoic acidIt is heated to 80 DEG C -180 DEG C in organic solvent, reaction is cooled to room temperature after 1-24 hours, is filtered, is obtained
Wherein, Ar is selected from phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinoline One of base, indyl, carbazyl, anilino-, triphenylethylene, tetraphenylethylene and its corresponding derivative structure;G1 and G2 respectively indicates any substituent group of any position on phenanthrene ring.
Further include step S2 after step S1:
S2, by what is be prepared in S1 stepIn hydroxyl carry out respectively it is corresponding replace it is anti- Should obtain by R replace Formulas I compound, wherein R be selected from halogen, alkoxy, fragrance phenolic group, amido and aromatic amino and its One of corresponding derivative.
In the preparation method of the compound of formula I, in step sl, it is preferably heated to 100 DEG C -120 DEG C;It is preferred that Reaction is cooled to room temperature after 2-4 hours;The organic solvent is preferably selected from acetic acid, tetrahydrofuran, toluene, benzene, N, N- dimethyl Any one or more in formamide, n,N-dimethylacetamide and N-Methyl pyrrolidone, most preferably acetic acid and acetic acid With the mixed system of other solvents, i.e. acetic acid and tetrahydrofuran, toluene, benzene, n,N-Dimethylformamide, N, N- dimethylacetamide The mixed system of any one or more in amine and N-Methyl pyrrolidone.
Further, it may also include step S3 between step S1 and step S2: S1 step obtainedFurther purification, recrystallization and column chromatography can be used, wherein the preferred tetrahydrofuran of recrystallization solvent, Ethyl alcohol, toluene or n,N-Dimethylformamide, more preferable n,N-Dimethylformamide.
The present invention also provides the compounds of another Formula II, have the following structure general formula:
Wherein, Ar indicates aromatic group or its derivative structure, Ar be selected from phenyl, tolyl, naphthalene, furyl, thienyl, Pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carbazyl, anilino-, triphenylethylene, tetraphenylethylene and its phase One of derivative structure answered;R and R1Respectively it is selected from hydroxyl, halogen, alkoxy, fragrance phenolic group, amido and fragrance One of amido and its corresponding derivative;G1 and G2 respectively indicates any substituent group of any position on phenanthrene ring.
In the compound of Formula II of the invention, G1 and G2 respectively indicate hydrogen.
The present invention also provides the preparation methods of the compound of above-mentioned Formula II, include the following steps: Sa, derive aromatic aldehyde ObjectPhenanthrenequione derivativeAmmonium acetate and amino phthalic acidIt heats in organic solvent To 80 DEG C -180 DEG C, reaction is cooled to room temperature after 1-24 hours, is filtered, is obtained
Wherein, Ar is selected from phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinoline One of base, indyl, carbazyl, anilino-, triphenylethylene, tetraphenylethylene and its corresponding derivative structure;G1 and G2 respectively indicates any substituent group of any position on phenanthrene ring.
Further include step Sb after step Sa in the preparation method of the compound of Formula II:
Sb, by what is be prepared in Sa stepIn two hydroxyls respectively carry out relatively The substitution reaction answered obtains respectively by R and R1The compound of substituted Formula II, wherein R and R1Respectively it is selected from halogen, alcoxyl One of base, fragrance phenolic group, amido and aromatic amino and its corresponding derivative.
In the preparation method of the compound of Formula II of the present invention, in step Sa, it is preferably heated to 100 DEG C -120 DEG C;It is excellent Choosing reaction is cooled to room temperature after 2-4 hours;The organic solvent is preferably selected from acetic acid, tetrahydrofuran, toluene, benzene, N, N- diformazan Any one or more in base formamide, n,N-dimethylacetamide and N-Methyl pyrrolidone, most preferably acetic acid and second The sour mixed system with other solvents, i.e. acetic acid and tetrahydrofuran, toluene, benzene, n,N-Dimethylformamide, N, N- dimethyl second The mixed system of any one or more in amide and N-Methyl pyrrolidone.
Further, it may also include step Sc between step Sa and step Sb: Sa step obtainedFurther purification, can be used recrystallization and column chromatography, wherein the preferred tetrahydro furan of recrystallization solvent It mutters, ethyl alcohol, toluene or n,N-Dimethylformamide, more preferable n,N-Dimethylformamide.
The compound of above-mentioned Formulas I and Formula II is used to prepare the purposes of fluorescence probe respectively, is especially used to prepare biology The purposes of fluorescence probe.
The compound and its preparation method and application for implementing Formulas I and Formula II of the invention, has the advantages that this hair The compound of the bright Formulas I and Formula II substituent structure different by (C2 substituting group position) introducing at Ar, is realized to above-mentioned The adjusting of the luminescent color, efficiency of compound;Emphasis is by introducing triphenylethylene or tetraphenylethylene primitive and its derivative Structure, it is effective to contain compound loss of efficiency in the solid state, realize high fluorescence quantum yield under the conditions of its water system;Pass through It selects different amino carboxylic acid structures as reactant, different carboxylic acid structures is introduced at N1 phenyl ring, and pass through side appropriate Method prepares various carboxylic acid derivative structures, such as carboxylic acid halides, aromatic acid Arrcostab, aromatic acid aryl ester, aromatic acid alkylamide or aromatic acid aryl acyl Amine etc., with molecule compatibility, the recognition capability etc. for improving above compound structure;Special attention will be given to is obtained by simple halogenation The stable acyl chlorides structure of a kind of water system has been arrived, and has proved that intramolecular charge separation may be to stablize this class formation by crystal structure Key factor;As a kind of novel probe structure, phenanthro- imidazolyl carboxylic acid and carboxylic acid derivates can for Formulas I and Formula II compound Free disengaging cell, and Selective recognition and imaging are carried out to specific structure, make it in biology, medical treatment, health and monitoring neck Domain has extremely wide application prospect.
Detailed description of the invention
Figure 1A is fluorescence spectrum relative intensity of fluorescence change curve of the TPE-PA under the different proportion of tetrahydrofuran and water Figure;
Figure 1B is fluorescence spectrum relative intensity of fluorescence change curve of the TPE-PAC under the different proportion of tetrahydrofuran and water Figure;
Fig. 2 is TPE-PAC pH value time history plot in water;
Fig. 3 A is photograph via bright field of the Hela cell of TPE-PAC dyeing under fluorescence microscope;
Fig. 3 B is fluorescence photo of the Hela cell of TPE-PAC dyeing under fluorescence microscope;
Fig. 4 is fluorescence spectrum change curve of the TPE-P2A under the different proportion of tetrahydrofuran and water;
Fig. 5 A is photograph via bright field of the Hela cell of TPE-P2A dyeing under fluorescence microscope;
Fig. 5 B is fluorescence photo of the Hela cell of TPE-P2A dyeing under fluorescence microscope.
Specific embodiment
With reference to the accompanying drawings and examples, the compound of the present invention I and compound II and its preparation method and application are made It further illustrates:
One kind provided by the invention can be used as the Formulas I of novel fluorescence probe material and the compound of Formula II, i.e. compound I With compound II, which is that phenanthro- imidazolyl carboxylic acid and carboxylic acid derivates structure, structure have following structure general formula:
For above structure with 9,10- phenanthro- imidazoles for nuclear structure, Ar indicates aromatic group or its derivative structure, is respectively selected from Phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carbazyl, aniline Base, triphenylethylene, tetraphenylethylene etc. and one of corresponding derivative structure.R and R1N1 in imidazoles is illustrated respectively in take Substituent structure is linked for the carbonyl of any the position of substitution on phenyl ring, is respectively selected from hydroxyl, halogen, alkoxy or fragrant phenolic group The carboxylic acid group derivative structure that group, amido and aromatic amino etc. are constructed.G1 and G2 indicates any substitution of any position on phenanthrene ring Group.
Specific synthesis process:
(1)
It the reactions such as couples, replace and is condensed by various and obtain the derivant structure of aromatic aldehyde and phenanthrenequione.Aromatic aldehyde and phenanthrene The derivative of quinone is existing compound, and synthesis process is the prior art, specific preparation process which is not described herein again.
(2)
Above-mentioned fragrant aldehyde derivatives, phenanthrenequione derivative, ammonium acetate and aminobenzoic acid (or amino phthalic acid) are used " one kettle way " prepares important carboxylic acid structure in solvent appropriate and temperature.
Concrete operations: by fragrant aldehyde derivatives, phenanthrenequione derivative, ammonium acetate and aminobenzoic acid (or amino phthalic acid) It is heated to proper temperature in organic solvent, is cooled to room temperature after reacting a period of time, carboxylic acid structure is obtained by filtration and (further mentions It is pure to use recrystallization and column chromatography).Wherein, the preferred acetic acid of organic solvent, tetrahydrofuran, toluene, benzene, N, N- dimethyl formyl Amine (DMF), n,N-dimethylacetamide (DMAC) and N-Methyl pyrrolidone (NMP) etc. or both, three mixed system, most It is preferred that acetic acid and its mixed system with other solvents;Preferably 80 DEG C to 180 DEG C of temperature, wherein most preferably 100 DEG C to 120 ℃;Reaction time preferably 1 hour to 24 hours, wherein most preferably 2 hours to 4 hours;Recrystallization solvent, preferably tetrahydrofuran, Ethyl alcohol, toluene, DMF etc., most preferably DMF.
(3)
Above-mentioned carboxylic acid structure is used into corresponding method, respectively obtains substituted carboxylic acid halides, the aromatic acid alkane of phenanthro- imidazoles N1 phenyl ring Base ester, aromatic acid aryl ester, aromatic acid alkylamide or aromatic acid aryl amide etc..It should be noted that its specific substitution reaction The Cheng Junwei prior art, is no longer described in detail here.
Further, G1 and G2 respectively indicate hydrogen.
Further, Ar is any heteroaryl structure, substituent R and R1For hydroxyl, halogen, alkoxy or fragrance phenolic group, When amido and aromatic amino and its derivative, preferred compound structure are as follows:
Wherein, one of X F, Cl, Br and I, R2-R5It is respectively hydrogen, alkyl, hydroxyl, alkoxy, nitro, cyanogen Base, amino, sulfydryl, halogen atom etc. (further, wherein the carbon atom number of alkyl or alkoxy is 1~12), Ar ' and Ar " Respectively it is selected from phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinolyl, indoles Base, carbazyl, anilino-, triphenylethylene, tetraphenylethylene etc. and one of corresponding derivative structure.
Further, Ar is restricted to phenyl ring or phenyl ring derivative, naphthalene nucleus or naphthalene derivative, anthracene nucleus or anthracycline derivatives Substituent group, compound formula and preferred compound structure are as follows, and useIndicate N1 phenyl ring on by hydroxyl, halogen, Carboxylic acid group derivative structure constructed by alkoxy or fragrance phenolic group, amido and aromatic amino etc.:
Wherein, A1-A9Respectively for hydrogen, alkyl, hydroxyl, alkoxy, nitro, cyano, amino, sulfydryl, halogen atom, Phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carboxylic acid or carboxylic acid (further, wherein the carbon of alkyl or alkoxy is former for one of derivative, carbazyl or anilino- and corresponding derivative structure Subnumber is 1~12).
Further, Ar is restricted to triphenylethylene and triphenylethylene derivative, compound formula and preferredization It is as follows to close object structure, and usesIt indicates on N1 phenyl ring by hydroxyl, halogen, alkoxy or fragrance phenolic group, amido and virtue Carboxylic acid group derivative structure constructed by fragrant amido etc.:
Wherein, Ar " ' is selected from phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinoline The new virtue of either both any composition of base, indyl, carbazyl, anilino-, diazosulfide and corresponding derivative structure One kind of perfume base group;B1-B15Respectively for hydrogen, alkyl, hydroxyl, alkoxy, nitro, cyano, amino, sulfydryl, halogen atom, Phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carboxylic acid or carboxylic acid One of derivative, carbazyl or anilino- or one of corresponding derivative etc. (further, wherein alkyl or alkoxy Carbon atom number be 1~12).
Further, Ar is restricted to tetraphenylethylene and tetraphenylethylene derivative, compound formula and preferredization It is as follows to close object structure, and usesIt indicates on N1 phenyl ring by hydroxyl, halogen, alkoxy or fragrance phenolic group, amido and virtue Carboxylic acid group derivative structure constructed by fragrant amido etc.:
Wherein, Ar " ' is selected from phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinoline The new virtue of either both any composition of base, indyl, carbazyl, anilino-, diazosulfide and corresponding derivative structure One kind of perfume base group;B1-B15Respectively for hydrogen, alkyl, hydroxyl, alkoxy, nitro, cyano, amino, sulfydryl, halogen atom, Phenyl, tolyl, naphthalene, furyl, thienyl, pyrrole radicals, pyridyl group, pyranose, quinolyl, indyl, carboxylic acid or carboxylic acid One of derivative, carbazyl or anilino- or one of corresponding derivative etc. (further, wherein alkyl or alkoxy Carbon atom number be 1~12).
Further, Ar is furans, thiophene, pyrroles, pyridine, pyrans, quinoline (isoquinoline-containing), indoles, carbazole, aniline Base, diazosulfide and its corresponding derivative structure, or one kind of both any new aromatic group formed, chemical combination Object general formula and preferred compound structure are as follows, and useIt indicates on N1 phenyl ring by hydroxyl, halogen, alkoxy or fragrant phenol Carboxylic acid group derivative structure constructed by group, amido and aromatic amino etc.:
In above-mentioned all structural formulas, wherein aryl and alkyl preferred structure can be selected from one of 29 kinds shown in following formula Or hydrogen atom:
Embodiment 1: the synthesis of phenyl-phenanthro- imidazoles-N1- carboxylic acid and derivative
Appropriate benzaldehyde, phenanthrenequione, p-aminobenzoic acid and excessive ammonium acetate are reacted 3 hours for 120 DEG C in glacial acetic acid After be cooled to room temperature, carboxylic acid derivates are obtained by filtration.The mixing for being dissolved in n,N-Dimethylformamide and thionyl chloride is molten In agent, 80 DEG C of reactions, 4 hours back spins walk unreacted thionyl chloride.Excessive aniline is added to flow back 4 hours, chromatography post separation obtains To target compound structure.1H NMR(DMSO,500MHz):δ:10.6(s,1H),8.96(d,1H),8.90(d,1H),8.70 (d,1H),8.21(d,2H),7.85(d,2H),7.79(t,1H),7.71(t,1H),7.60-7.56(m,5H),7.40-7.37 (m,7H),7.11(d,1H).MALDI-TOF(m/z):[M+]calcd.C34H23N3O,489.5659;found,490.59.
The synthesis of embodiment 2:1- naphthalene-phenanthro- imidazoles-N1- carboxylic acid and derivative
By appropriate 1- naphthaldehyde, phenanthrenequione, p-aminobenzoic acid and excessive ammonium acetate, 120 DEG C of reactions 3 are small in glacial acetic acid When after be cooled to room temperature, carboxylic acid derivates are obtained by filtration.It is dissolved in the mixing of n,N-Dimethylformamide and thionyl chloride In solvent, 80 DEG C of reactions, 4 hours back spins walk unreacted thionyl chloride.Excessive aniline is added to flow back 4 hours, chromatography post separation Obtain target compound structure.1H NMR(500MHz,DMSO-d6)δ13.27(s,1H),9.02-8.97(m,1H),8.94(d,J =8.3Hz, 1H), 8.67 (dd, J=7.9,1.4Hz, 1H), 8.02-7.93 (m, 4H), 7.91 (dd, J=8.2,1.4Hz, 1H), 7.83-7.65 (m, 5H), 7.61 (ddd, J=8.4,7.0,1.4Hz, 1H), 7.60-7.45 (m, 3H), 7.41 (ddd, J =8.1,6.9,1.1Hz, 1H), 7.14 (dd, J=8.3,1.2Hz, 1H) .MALDI-TOF (m/z): [M+] calcd.C38H25N3O,539.6246;found,540.77.
The synthesis of embodiment 3:2- naphthalene-phenanthro- imidazoles-N1- carboxylic acid and derivative
By appropriate 2- naphthaldehyde, phenanthrenequione, p-aminobenzoic acid and excessive ammonium acetate, 120 DEG C of reactions 3 are small in glacial acetic acid When after be cooled to room temperature, carboxylic acid derivates are obtained by filtration.It is dissolved in the mixing of n,N-Dimethylformamide and thionyl chloride In solvent, 80 DEG C of reactions, 4 hours back spins walk unreacted thionyl chloride.Excessive aniline is added to flow back 4 hours, chromatography post separation Obtain target compound structure.1HNMR(500MHz,DMSO-d6) δ 10.36 (s, 1H), 8.98 (dd, J=28.1,8.4Hz, 2H), 8.67 (dd, J=8.0,1.4Hz, 1H), 8.04-7.90 (m, 5H), 7.83-7.69 (m, 7H), 7.66-7.49 (m, 4H), 7.43 (ddd, J=8.2,7.0,1.1Hz, 1H), 7.35 (t, J=7.9Hz, 2H), 7.18 (dd, J=8.4,1.2Hz, 1H), 7.11 (dd, J=8.0,6.7Hz, 1H) .MALDI-TOF (m/z): [M+] calcd.C38H25N3O,539.6246;found, 540.45.
Embodiment 4: the synthesis of tetraphenylethylene-phenanthro- imidazoles-N1- carboxylic acid and derivative
By appropriate tetraphenyl ethylene base formaldehyde, phenanthrenequione, p-aminobenzoic acid and excessive ammonium acetate in glacial acetic acid 120 DEG C it is anti- It is cooled to room temperature, filters after answering 3 hours, column chromatographs to obtain carboxylic acid derivates TPE-PA.MALDI-TOF(m/z):[M+] calcd.C48H32N2O2,668.7799;found,668.8732.Anal Calc.for C48H32N2O2:C,86.20;H,4.82; N,4.19;O,4.78.Found:C,86.12;H,4.77;N,4.20;O,4.74.
TPE-PA is dissolved in the in the mixed solvent of n,N-Dimethylformamide (a small amount of) and thionyl chloride, 80 DEG C of reactions 4 Hour back spin walks unreacted thionyl chloride, with dry, the isolated chloride compounds of chromatographic column after water and methylene chloride extraction Structure TPE-PAC.MALDI-TOF(m/z):[M+]calcd.C48H31ClN2O,687.2255;found,687.2345.Anal Calc.for C48H31ClN2O:C,83.89;H,4.55;Cl,5.16;N,4.08;O,2.33Found:C,83.87;H,4.53; N,4.09;O,2.32.
Aggregation-induced emission (AIE) property research of embodiment 5:TPE-PA and TPE-PAC
As shown in Figure 1A and 1B, fluorescence of the respectively TPE-PA and TPE-PAC under the different proportion of tetrahydrofuran and water Spectrum relative intensity of fluorescence change curve, with the increase of water content, the fluorescence intensity of the two is obviously increased, and is had apparent poly- Collect induced luminescence phenomenon, is a kind of potential fluorescent molecular probe.
Embodiment 6:TPE-PAC water system stability study
As shown in Fig. 2, for TPE-PAC, pH value changes over time curve in water.Under usual conditions, acyl chlorides in water can be fast Speed is hydrolyzed to corresponding carboxylic acid and hydrogen chloride, and then loses high reactivity, but TPE-PAC is due to the particularity of imidazoles Significant stability can be shown in water system condition.Under agitation, changed in 1500 minutes by pH value and estimate its point Solution rate is only 25%, is acyl chlorides structure stable under a kind of water system.Moreover, the acyl chlorides structure can normally carry out extraction and column Chromatography, shows the fluorescent molecular probe primitive under the conditions of it can be used as water system.
The experiment of embodiment 7:TPE-PAC cell dyeing
It after TPE-PAC is made into certain density DMSO solution, instills in cell culture fluid, selects Hela cell as grinding Study carefully object, its polarity is observed using fluorescence microscope after cultivating a period of time, as shown in figs.3 a and 3b, discovery TPE-PAC can Smoothly to penetrate cell wall, and what is oriented is enriched at cytoplasm, to show blue-fluorescence, illustrates such acyl chlorides structure It can be used as fluorescence probe use under the conditions of water system.
Embodiment 8: tetraphenylethylene-phenanthro- imidazoles-N1- carboxylic acid derivates TPE-P2A synthesis
By appropriate tetraphenyl ethylene base formaldehyde, phenanthrenequione, p-aminophenyl diacid and excessive ammonium acetate in glacial acetic acid 120 DEG C it is anti- It is cooled to room temperature, filters after answering 3 hours, column chromatographs to obtain carboxylic acid derivates TPE-P2A.MALDI-TOF(m/z):[M+] calcd.C49H32N2O4,712.7894;found,712.7902.Anal Calc.for C49H32N2O4:C,82.57;H,4.53; N,3.93;O,8.98.Found:C,82.48;H,4.45;N,3.9387;O,8.68.
Aggregation-induced emission (AIE) property research of embodiment 9:TPE-P2A
As shown in figure 4, be fluorescence spectrum change curve of the TPE-P2A under the different proportion of tetrahydrofuran and water, with The fluorescence intensity of the increase of water content, the two obviously increases, and has apparent aggregation-induced emission phenomenon, can be used as a kind of glimmering Optical molecule probe.
The experiment of embodiment 10:TPE-P2A cell dyeing
After TPE-P2A is made into certain concentration solution DMSO solution, instill cell culture fluid in, select Hela cell as Research object observes its polarity using fluorescence microscope after cultivating a period of time, as shown in Figure 5 A and 5B, finds TPE-P2A Cell wall can be smoothly penetrated, and what is oriented is enriched at cytoplasm, to show blue-fluorescence, illustrates such dicarboxylic acids Structure has self-activation performance, can be used as fluorescence probe use.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description, Within all these improvement or transformation should all belong to the protection domain of appended claims of the present invention.

Claims (8)

1. a kind of compound of Formulas I, has the following structure general formula:
Wherein, Ar is selected from naphthalene, triphenylethylene or tetraphenylethylene;R is selected fromOr one of halogen;G1 and G2 respectively indicates hydrogen.
2. a kind of preparation method of the compound of Formulas I, which comprises the steps of:
S1, by fragrant aldehyde derivativesPhenanthrenequione derivativeAmmonium acetate and aminobenzoic acid? 80 DEG C -180 DEG C are heated in organic solvent, reaction is cooled to room temperature after 1-24 hours, is filtered, is obtained
Wherein, Ar is selected from naphthalene, triphenylethylene or tetraphenylethylene;G1 and G2 respectively indicate hydrogen.
3. the preparation method of compound according to claim 2, which is characterized in that further include step S2 after step S1:
S2, by what is be prepared in S1 stepIn hydroxyl carry out corresponding substitution reaction respectively and obtain By the compound of the R Formulas I replaced, wherein R is selected fromOr one of halogen.
4. the preparation method of compound according to claim 2, which is characterized in that in step sl, be heated to 100 DEG C- 120℃;Reaction is cooled to room temperature after 2-4 hours;The organic solvent is selected from acetic acid, tetrahydrofuran, toluene, benzene, N, N- diformazan Any one or more in base formamide, DMAC N,N' dimethyl acetamide and N-Methyl pyrrolidone.
5. a kind of compound of Formula II, has the following structure general formula:
Wherein, Ar indicates naphthalene, triphenylethylene or tetraphenylethylene;R and R1Respectively it is selected fromOr in halogen One kind;G1 and G2 respectively indicate hydrogen.
6. a kind of preparation method of the compound of Formula II, which comprises the steps of:
Sa, by fragrant aldehyde derivativesPhenanthrenequione derivativeAmmonium acetate and amino phthalic acidIt is heated to 80 DEG C -180 DEG C in organic solvent, reaction is cooled to room temperature after 1-24 hours, is filtered, is obtained
Wherein, Ar is selected from naphthalene, triphenylethylene or tetraphenylethylene;G1 and G2 respectively indicate hydrogen.
7. the preparation method of compound according to claim 6, which is characterized in that further include step Sb after step Sa:
Sb, by what is be prepared in Sa stepIn two hydroxyls respectively carry out it is corresponding Substitution reaction obtains respectively by R and R1The compound of substituted Formula II, wherein R and R1Respectively it is selected fromOr halogen One of.
8. the purposes that compound described in claim 1 or 5 is used to prepare fluorescence probe.
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