54 results about "Hydroxyquinoline derivatives" patented technology

The present invention relates to a method for the treatment, amelioration and/or prophylaxis of a neurological condition, in particular neurodegenerative disorders which comprises the administration of an effective amount of a compound of formula (I): to a subject in need thereof. The present invention also relates to a compound of formula (II) and processes for its preparation.

The invention relates to a preparation method of a fluorescence enhanced fluorescent molecular probe for detecting mercapto-containing amino acids, and an application of the probe, and concretely relates to a preparation method of a 7-hydroxyquinoline derivative and an application of the 7-hydroxyquinoline derivative in the mercaptoamino acid detection. The fluorescent probe is a pure probe synthesized through directly reacting the 7-hydroxyquinoline derivative with dimethyl sulfate. The largest absorption wavelength of the molecule of the probe is 315nm; and the absorption wavelength of the probe molecule redshifts to 406nm from 315nm with the addition of the mercapto-containing amino acids, the intensity of a fluorescent spectrum at 505nm is continuously enhanced, and very strong green fluorescence is emitted. The probe molecule has the advantages of high detection sensitivity, strong identification capability on the mercapto-containing amino acids, and fast response speed, and has detection limits of Cys, GSH and Hcy mercaptoamino acids being 23nM, 52nM and 5.3nM respectively, and like probes have important application values in the biochemical field and the like.

The invention discloses two halogenated 8-hydroxyquinoline platinum (II) complexes and a synthesis method and application thereof. The structures of the halogenated 8-hydroxyquinoline platinum (II) complexes are shown in the formula (I), and the synthesis method comprises the steps that an 8-hydroxyquinoline derivative and dichloro bis(dimethyl sulfoxide) platinum are taken and subjected to a coordination reaction in a polar solvent, and the halogenated 8-hydroxyquinoline platinum (II) complexes are obtained. It is shown through experiments carried out by an applicant that the halogenated 8-hydroxyquinoline platinum (II) complexes have good activity of inhibiting the proliferation of certain tumor cell strains and can selectively inhibit the growth of bladder cancer T-24 cells, and the apoptosis of the tumor cells is induced under the function of targetedly interfering with mitochondria; meanwhile, the toxicity of the complexes to human normal cells HL-7702 is low. The structures of the halogenated 8-hydroxyquinoline platinum (II) complexes and the structure of the 8-hydroxyquinoline derivative are shown in the following formulas (I) and (II) respectively, wherein the formulas (I)and (II) are shown in the description, and R1 represents Cl or Br.

In an organic EL device, a hole injection electrode is formed on a glass substrate, and a hole transport layer, a luminescent layer, a hole blocking layer, an electron transport layer, and an electron injection electrode are formed in this order on the glass substrate. The hole blocking layer includes a ternary complex compound including two quinolinol derivatives, a group IIIB element, and a halogen element or a phenol derivative.

The invention discloses an iridium complex constructed based on 8-hydroxyquinoline derivative and 2-phenylpyridine iridium dimer and a synthesis method and application thereof. The synthesis method ofthe iridium complex comprises the following steps: putting a 2-phenylpyridine iridium dimer and an 8-hydroxyquinoline derivative into an organic solvent, and performing reacting under a heating or non-heating condition to obtain the corresponding target complex. A test result of an applicant shows that the complex has remarkable biological activity (the activity is remarkably higher than that ofligands and cisplatin of cervical cancer and ovarian cancer cells) on cervical cancer and ovarian cancer cells, and meanwhile, the toxicity of the complex on human normal hepatocytes is extremely low(IC50 is greater than 80 [mu] M); and moreover, the complex disclosed by the invention can also be used for fluorescence localization in tumor cells, and can be developed into a targeting anti-cancerdrug for fluorescence localization targeting mitochondria.

The invention discloses three low-toxicity iridium complexes, and a synthesis method and an application thereof. The synthesis method of the iridium complexes comprises the following steps: taking andputting a 3-methyl-2-phenylpyridine iridium dimer and an 8-hydroxyquinoline derivative into an organic solvent, and reacting under a heating or non-heating condition to obtain the corresponding target complexes. Test results of the applicant show that the complexes have remarkable biological activity (the activity is remarkably higher than that of ligands and cis-platinum of the complexes) on cervical cancer and ovarian cancer cells, have extremely low toxicity (IC50 is more than 80 [mu]M) on human normal hepatocytes, and are expected to be developed into anti-tumor drugs.

The invention discloses a six-tooth coordination structure 8-hydroxy quinoline derivant manganese or ferric catalyst and application, wherein the catalyst is the 8-hydroxy quinoline derivant of general formula (I) of catalyst is complex compound of ligand and manganese ion, which forms general formula (II) or (III); the catalyst can be applied in the oxidizing reaction in the olefin, alcohol or cyclohexane and 10-30% hydrogen peroxide, which is 0. 5-5% corresponding to the molar rate of olefin or alcohol or cyclohexane. The invention improves the utility of hydrogen peroxide and epoxidation efficiency with good stability, which uses non-toxic or low-toxic solvent to moderate the reacting condition.

The present invention relates to a 8-hydroxyquinoline derivative containing dicyanomethylisophorous. Said invention is characterized by adopting the following steps: chemically modifying 8-hydroxyquinoline, introducing the structure containing dicyanomethylisophorone and utilizing the group capable of forming conjugated system or the group capable of introducing N atoms as donor group to form conjugated system with D-pi-A structure to form connection between two functional gruops of hydroxyquinolnie and dicyanomethylisopho-rone. The dicyan and 8-hydroxyquinoline metal complex in said compound can effectively reduce molecular LUMO track, raise electronic transmission performance of material, so that it is a n-type semiconductor material emitting red light.

The invention discloses a ternary complex formed by rare earth elements and 2-pyridine carboxaldehyde thiosemicarbazone Schiff base and 8-oxyquinoline or derivatives thereof as well as a preparation method and application of the ternary complex as an antibacterial agent. The chemical formula of the rare earth ternary complex is: Ln(L)Hq(NO3)3C2H5OH.CH3OH, Ln(L)(HqM)2(NO3)C2H5OH.CH3OH; Ln(L)(HqS)2(NO3) C2H5OH.CH3OH, wherein the Ln is a rare earth ion; the L is 2-pyridine carboxaldehyde thiosemicarbazone Schiff base; the Hq is 8-oxyquinoline; the HqM is a 8-oxyquinoline derivative connected with an electron donating group on the quinoline ring 2-position; and the HqS is a 8-oxyquinoline derivative connected with an electron withdrawing group on the quinoline ring 5-position. The rare earth ternary complex has the advantages of good chemical stability, heat stability and lipid solubility, strong antibacterial activity and little pollution.

Adhesive compositions exhibit improved adhesion and conductivity by the addition of a metal salt of 8-quinolinol or of an 8-quinolinol derivative as a corrosion inhibitor. The metal salt of 8-quinolinol or of an 8-quinolinol derivative is formed by coordination with a metal selected from the group consisting of Cu, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, Ga, In, TI, Yt, La, Pb, Sb, Bi, Cr, Mo, Mn, Fe, Co, Ni, Pd, Ce, and Pr. Examples of quinolinol derivative salts have the structures:

The invention discloses an iridium complex constructed based on a 8-hydroxyquinoline derivative and a 1-phenylpyrazole iridium dimer as well as a synthesis method and application of the iridium complex. The synthesis method of the iridium complex comprises the following steps: putting the 1-phenylpyrazole iridium dimer and the 8-hydroxyquinoline derivative into an organic solvent, and reacting under a heating or non-heating condition to obtain the corresponding target complex. A test result shows that the complex has remarkable biological activity (the activity is remarkably higher than that of ligand and cisplatin the complex) on cervical cancer and ovarian cancer cells, and meanwhile, the toxicity of the complex on human normal hepatocytes is extremely low (IC50 is greater than 80 [mu] M); on the other hand, the complex disclosed by the invention can also be used for fluorescence localization in tumor cells, and can be developed into a targeting anti-cancer drug for fluorescence localization targeting mitochondria.

Disclosed is an organic light-emitting device which includes a substrate, an anode layer, a hole transmission layer, an electronic barrier layer, a light-emitting layer, an n-type doped barrier layer, an n-type doped electronic transmission layer and a cathode layer. The material of the n-type doped barrier layer is formed through mixing of an organic material and an organic metal compound, wherein the organic material is 4,7-diphenyl-o-phenanthroline or 2-(4-biphenylyl)-5-(4-tertiary butyl) phenyl-1,3,4-oxadiazole. The organic metal compound is formed through cooperation of one of beryllium, gallium, zinc, indium and aluminum and one of hydroxyquinoline, hydroxyquinoline derivative, hydroxyl benzoquinoline, and hydroxyl benzoquinoline derivative, wherein the organic material covers 30-70% of the material of the n-type doped barrier layer by mass. The organic light-emitting device is higher in light-emitting efficiency and longer in service life. Moreover, a preparation method for the organic light-emitting device is also provided.

The invention discloses an organic light-emitting device which comprises a transparent substrate, an anode, a hole transfer layer, an electron blocking layer, a light emitting layer, a hole blocking layer, an electron transfer layer and a cathode which are sequentially stacked, wherein the hole blocking layer is made from an organometallic complex, the ligand of the organometallic complex is hydroxyquinoline, hydroxyquinoline derivative, hydroxyl benzoquinoline or hydroxyl benzoquinoline derivative. The hole blocking layer of the organic light-emitting device is made from an organometallic complex, the film formation quality of the organometallic complex is good so as to be good for preventing the diffusion of a hole to the light emitting layer, and compared with a traditional organic light-emitting device, the luminous efficiency is improved. The invention further provides a preparation method of the organic light-emitting device.

The invention belongs to the field of metal ion probes, and in particular relates to an 8-hydroxyquinoline mercury ion rate type fluorescent probe and a preparation method thereof. The invention provides an 8-hydroxyquinoline derivative, wherein the molecular formula of the 8-hydroxyquinoline derivative is C20H15ClFNO. The invention also provides a preparation method of the 8-hydroxyquinoline derivative; meanwhile, the invention also provides application of the 8-hydroxyquinoline derivative or a product obtained by the preparation method to Hg<2+> detection. According to experimental detection, the compound prepared by the technical scheme provided by the invention only responds to Hg<2+> and has high specificity when serving as a fluorescent probe; when detecting the Hg<2+> at different concentrations, the compound has a good linear relation and can be applied to H<2+> quantitative detection; the compound has high sensitivity on H<2+> detection, interference of other metal ions except for the H<2-+> on the measurement result is low, and the detection method is reliable and stable. The technical defects of long response time and low detection sensitivity of mercury ion detection in the prior art are solved.

This invention provides a luminescent organic polymer metal complex represented by polyQ M K n-1 (1) which is obtained by the reaction of a polymer ligand (polyQ) with an 8-hydroxyquinoline derivative introduced to its side chain through a spacer group, an 8-hydroxyquinoline derivative ligand (K) and a divalent to tetravalent metal ion (M n+ ) wherein the 8-hydroxyquinoline derivative ligand (K) has a bulky substituent. This invention also provides a luminescent organic polymer metal complex composition comprising said luminescent organic polymer metal complex and additionally a low-molecular-weight ligand and a process for producing the same.

The invention discloses an 8-hydroxyquinoline derivative iridium (III) complex as well as a preparation method and application thereof, and belongs to the field of medicines. The chemical name of the compound is 2-methylpyridino[3,2-a]-pyridino[1',2':1,2]imidazo[4,5-c]phenazine.bisbenzoquinolinyl iridium(III) hexafluorophosphate . The preparation method comprises the following steps: reacting 8-hydroxyquinoline with hydrochloric acid and NaClO3; adding anhydrous potassium carbonate; adding 2-amino-5-methylpyridine; adding o-phenylenediamine; obtaining a compound 3a; reacting 7,8-benzoquinoline with iridium trichloride hydrate to obtain a compound 4; and reacting the compound 3a with a compound 4 to obtain the 8-hydroxyquinoline derivative iridium (III) complex. The in-vitro anti-tumor activity of the compound on a human ovarian cancer drug-resistant strain SK-OV-3/DDP is greater than that of an 8-hydroxyquinoline derivative ligand and a metal-based anti-cancer drug cis-platinum; and the toxicity to normal cells HL-7702 is very low, and a good effect of targeted inhibition of human ovarian cancer proliferation is reflected.

The invention discloses a 2-vinyl-8-bioquin derivative, which preparation method comprises that 2-bioquin-8-bioquin and aromatic aldehyde are added into acetic anhydride to be dissolved, heated, refluxed and reacted at 120-140DEG C for 40-96h, the reaction product is separated and purified via column chromatography to obtain the pure 2-vinyl-8-bioquin derivative. The inventive 2-vinyl-8-bioquin derivative has significant oxidization resistance, better than strong antioxidant glutathione GSH which can eliminate free group. The inventive product can be used to prepare antioxidant, which further can accelerate the increment of mesenchymal stem cells in bone marrow, to prepare bone marrow mesenchymal increment accelerant.

The invention relates to an organic light-emitting device comprising a substrate, an anode layer, a hole transport layer, an electron blocking layer, a light emitting layer, an electron transport layer and a cathode layer. The electron transport layer includes at least one electron transport unit including an n type blocking portion stacked on the light emitting layer and an n type doped transport portion stacked at the n type blocking portion; the n type blocking portion is made of an organic metal complex that is formed by cooperation of one of beryllium, gallium, zinc, indium and aluminum and one of hydroxyquinoline, hydroxyquinoline derivative, hydroxybenzo[h]quinoline and hydroxybenzo[h]quinoline derivative; and the n type doped transport portion is made of a material containing an electron transport matrix material and an n type doping agent doped in the electron transport matrix material. According to the invention, the provided organic light-emitting device has advantages of high luminous efficiency and long service life. In addition, the invention also provides a preparation method of the organic light-emitting device.

The invention discloses a coordination compound with a half-sandwich iridium structure and a solid-phase synthesis method. The structural formula of the compound is a formula 1a, a formula 2a or a formula 3a, X in the formula 3a is halogen, and the substitution position is ortho-position, meta-position or para-position. The method comprises the step that [Cp*Ir([mu]-Cl)Cl]2 and an octahydroxyquinoline derivative react in a grinding mode in the presence of a very small amount of solvent and alkali. According to the synthesis method, solid-phase synthesis is performed in a grinding manner, so that the use of a solvent is greatly reduced, inert gas protection can be avoided, the cost is low, the operation is simple, the environmental pollution is small, industrial application is facilitated, and in addition, the synthesis method also has relatively high yield.

Die attach adhesive compositions comprise a quinolinol or a quinolinol derivative as an adhesion promoter. An exemplary quinolinol derivative has the structure:

Die attach adhesive compositions exhibit improved adhesion and conductivity by the addition of a metal salt of 8-quinolinol or of an 8-quinolinol derivative as an adhesion and/or conductivity promoter. The metal salt of 8-quinolinol or of an 8-quinolinol derivative is formed by coordination with a metal selected from the group consisting of Cu, Be, Mg, Ca, Sr, Ba, Zn, Cd, Al, Ga, In, Tl, Yt, La, Pb, Sb, Bi, Cr, Mo, Mn, Fe, Co, Ni, Pd, Ce, and Pr. Examples of quinolinol derivative salts have the structures:

The invention belongs to the technical field of medicines, and particularly relates to a 4-hydroxyquinoline derivative as well as a preparation method and application thereof, the 4-hydroxyquinoline derivative can be used as a P-gp inhibitor to reverse drug resistance of K562/AO, A549/ADM, HepG2/ADM and MCF7/ADM doxorubicin resistance with high expression of P-gp, and achieves an anti-tumor treatment effect and has prospect.

Disclosed herein is a method for forming a light-emitting layer on an industrial scale via chemical vapor deposition or molecular layer deposition. According to the method, a metal-containing material and an 8-hydroxyquinoline derivative having stable vapor pressure characteristics are used as raw materials and are vaporized.