90 results about "Crizotinib" patented technology

The invention provides a preparing method of crizotinib. The preparing comprises the following steps of: 1) preparing (S)-construction phenethyl alcohol by taking acetophenone the structural formula of which is shown in a formula (1) as a raw material; 2) preparing a nitrocompound; 3) preparing an aromatic amine compound; 4) preparing a bromo-compound; 5) preparing an N-Boc compound; and 6) preparing the crizotinib. Compared with the prior art, the preparing method of the crizotinib has the advantages that 1, the conventional biological enzymatic method and chemical resolution method are replaced by an organic micromolecule catalysis method, thus the whole line is short in reaction cycle, high in yield, simple in operation, wide in raw material source and low in price; and 2) the preparing method of the crizotinib is high in total yield, the obtained product has high optical purity, the required reaction condition and reaction process are easy to control, and a new choice is provided for preparation and production of the medicament crizotinib.

The invention features a method for treating patients who have an ALK-driven cancer, which is, or has become, refractory to one or more of crizotinib, CH5424802 and ASP3026, or which bears an ALK mutation identified herein, by administering a compound of formula (I) to the patient. The invention also features methods, kits, and compositions for characterizing ALK-driven cancers to determine whether they express an ALK mutant.

The invention provides a synthetic process method for a novel antineoplastic molecular targeted drug of crizotinib, and relates to the resolution process optimization of chiral isomers of a crizotinib precursor and the recycling of by-products. The method adopts a catalyzing resolution method that Boc-L-proline, namely, N-(tert-butoxycarbonyl)-L-proline) is combined with a catalyst of p-toluenesulfonic acid and a condensating agent of 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride to split 1-(2,6-dichloro-3-fluorophenyl)ethanol racemate into S-type alcohol and R-type alcohol, and a resolution by-product mixture is subjected to hydrolysis and configuration transition to obtain the (S)-1-(2,6-dichloro-3-fluorophenyl)ethanol; the total yield is improved to 76% from 30%, the time is shortened, pollution is reduced, and application to industrialized production is easy.

The invention relates to a crizotinib prodrug, as well as a preparation and an application thereof. The invention provides a compound showed as a general formula (II) or a stereoisomer thereof, or a pharmaceutically acceptable salt, or a solvent compound or a hydrate of the compound, wherein X is O or CH2; m is 0 or 1; R1 and R2 are selected from the same or different groups, and are respectively independently hydrogen, halogen, nitryl, cyan, hydroxyl, amino saturated or unsaturated chain hydrocarbyl of C1-C6, and saturated or unsaturated cyclic hydrocarbyl of C1-C6; R1 and R2 also can exist in the same ring and form ternary-hexahydric ring together; the ternary-hexahydric ring can be substituted or un-substituted cyclic hydrocarbon, aromatic ring or hetero-aromatic ring; the substituent group on the ring can be selected from halogen, nitryl, cyan, hydroxyl, amino, C1-C6 alkyl and C1-C6 alkoxy; R3 is selected from hydrogen, substituted or un-substituted C1-C12 saturated or unsaturated alkyl, substituted or un-substituted phenyl or hetero-aryl, substituted or un-substituted alkyl acyloxy, substituted or un-substituted phosphorus acyloxy and substituted or un-substituted aryl acyloxy or hetero-aryl acyloxy; and the substituent groups are selected from halogen, nitryl, cyan, hydroxyl, amino, phenyl or hetero-aryl, C`-C6 alkyl, C1-C6 acyloxy, C1-C6 vinyl and C1-C6 alkynyl.

The invention relates to the technical field of small-molecule chemical drug, and particularly relates to a preparation method of a crizotinib intermediate. The preparation method comprises: (1) synthesizing a compound 3 from a compound 1 and a compound 2 by flow chemistry; (2) synthesizing the crizotinib intermediate I from the compound 3 obtained in the step (1) and a boric acid ester compound 4 by flow chemistry. The preparation method of the crizotinib intermediate, which is provided by the invention, is high in yield, can greatly reduce energy consumption and cost in the preparation process of crizotinib, is environmental-friendly, is high in safety and high in automation degree, and is suitable for industrial amplification production. A reaction route is as follows: (with reference to the specification), wherein Y represents a leaving group, Z represents an amino protection group, and X is selected from F, Cl, Br and I.

The invention provides a new synthesis method for crizotinib. An atomic economic reaction is adopted to reduce environmental pollution. A high-optical purity raw material is obtained by chiral prolinol induced chiral reduction; a chiral centre is constructed through an SN2 substitution reaction; post-processing and purification difficulties caused by Mitsunobu reaction are overcome. Malononitrile derivative is constructed by adopting a coupling reaction of malononitrile and bromo-pyridinium derivative; N,N-dicarboamide derivatives are obtained by performing aminolysis on N,N-dimethylamine hydrochloride; in the N,N-dicarboamide derivatives, N,N-dimethylamine serving as an easy-to-leave group and hydrazine perform a ring closing reaction to construct a pyrazolone ring, so that an expected final product, namely crizotinib, is obtained. According to the method, though continuous steps are used, the reaction of each step is high, the optical purity is high, and the total yield is also high. In addition, raw materials used in the synthesis method are low in cost and easily obtained; the using amount of a catalyst is small; total cost is easy to control. An operating process is simple and convenient and easy to control, and is suitable for industrial production.

The invention discloses a synthesis method of crizotinib serving as an antitumor molecular targeting medicament, which belongs to the field of pharmacy and relates to a novel splitting process of a chiral isomer of a crizotinib precursor and a synthesis method of an intermediate. (S)-1-(2,6-dichloro-3-fluorophenyl)ethanol is prepared by splitting a 1-(2,6- dichloro-3-fluorophenyl)ethanol racemic body into S-alcohol and R-alcohol with a catalytic splitting method for combining Boc-L-proline(N-tert-butoxycarbonyl-L-proline), paratoluenesulfonic acid serving as a catalyst and 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride, separating and purifying; the yield is 60 percent; and the excessive fraction ee) of the chiral enantiomer is 99 percent. According to the method, time is shortened, cost is reduced, the generation of waste acids is avoided, environmental pollution is lowered, column chromatography isolation is not required, and industrial production is easier to implement.

The invention discloses a preparation method of an ALK inhibitor crizotinib and analogue or salt thereof. The method comprise the following steps: 1, 1-(4'-N-Boc)-1'-piperidine-3(3''-fluoro-2''-nitro)-5''-pyridylpyrazole is prepared; 2, 3-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-[1-(4-N-Boc-piperidinyl)-1H-pyrazol-4-yl]-2-nitropyridine is prepared; 3, N-Boc crizotinib is prepared; and 4, crizotinib and analogue or salt thereof is prepared. The method has the following advantages: the synthesis steps are reduced to 4 chemical reaction steps; a total yield is improved to approximately 35%, while the yield of an existing method is only approximately 10%; phenethyl alcohol with (R)- configuration, such as (R)-2,6-dichloro-3-fluorophenylethanol, is directly used as a raw material, such that the raw material can be fully utilized. The method provided by the invention is suitable for industrialized productions.

The invention belongs to the technical field of organic chemistry, also belongs to the technical field of medicinal chemistry, and in particular to a preparation method of a crizotinib intermediate (S)-1-(2,6-dichloro-3-fluorophenyl) ethanol. The method uses 1-(2,6-dichloro-3-fluorophenyl) acetophenone as the raw material to obtain a crizotinib chiral intermediate S-1-(2,6- dichloro-3-fluoro) phenethyl alcohol under the effect of a chiral catalyst, alkali and hydrogen. The chiral catalyst is [MX2((S)-a)((R,R)-b)], which is composed of chiral diphosphine ligand compound a, a chiral nitrogen ligand compound b and a metal salt catalyst MX2(P-cymene) in coordination combination. The synthetic method provided by the invention can prepare crizotinib intermediate with high enantioselectivity; the intermediate has ee% reaching 98%; and the mole dosage of the catalyst is only 1/150000-1/50000 of a reaction substrate 1-(2,6-dichloro-3-fluorophenyl) acetophenone, and the substrate can be completely transformed.

The invention discloses a novel anti-crizotinib human non-small cell lung cancer cell strain which is named as H3122-CR23 and has an accession number of CCTCC No. C201780. The cell strain has F1174C mutation in an ALK kinase area. The cell strain H3122-CR23 is applicable to research on the morphological and biological characteristics of human anti-crizotinib non-small cell lung cancer cells, research on the drug resistance mechanisms of tumors, development of drugs for drug resistance reversal of tumors, analysis of the susceptibility of antitumor drugs, screening and assessment of antitumor drugs, research on more efficient tumor treatment methods, etc., has high application value in scientific research and production, and is expected to produce good scientific research, economic and social benefits.

The invention provides a synthetic method for a crizotinib intermediate. The method comprises the following steps: (1), obtaining a crude product through reaction of a compound (I) namely 2,6-dichloro-3-fluoroacetophenone and (-) DIP-Cl in an organic solvent at the temperature of 0-25 DEG C; (2), re-crystallizing the crude product obtained in the step (1) by using normal hexane to obtain a crizotinib intermediate compound (II). A key intermediate is synthesized at one step by using an asymmetric catalysis method, and is controllable in quality, simple and convenient to operate, high in yield, high in optical purity and applicable to industrial production. A reaction structure formula of the method is shown as follows.

The invention belongs to the technical field of medicine synthesis, and in particular relates to a method for synthesizing a Crizotinib intermediate. The method comprises steps of: a) reacting a raw material 4-mesylate piperidine-1-formic acid tert-butyl ester (2) with 4-nitro pyrazole to prepare a compound 3; b) reducing nitro by using hydrazine hydrate to obtain an amino compound 4; and c) diazotizing the compound 4 by using tert-butyl nitrite, and reacting the compound 4 with a boric acid ester compound 5 in the presence of a free radical initiator benzoyl peroxide, so as to prepare the Crizotinib intermediate (1). Compared with an existing synthesis method, the method provided by the invention has the following advantages: a diazotization method is used to synthesize the boric acid ester product; and compared with an existing Miyaura boronation method catalyzed by Pd, the method avoids the usage of expensive palladium catalyst and ligand, and has the merits of mild reaction condition, high yield, simple operation, cheap and easily available raw materials and short reaction period, and is quite easy for industrialized mass production.

The present invention relates to the use of ROS kinase inhibitors for treating abnormal cell growth in mammals. In particular, the invention provides methods of treating mammals suffering from cancer mediated by at least one genetically altered ROS. In particular, the invention provides methods of treating mammals suffering from cancer mediated by at least one genetically altered ROS by administration of crizotinib.

The invention discloses a method for removing palladium from a crizotinib intermediate. The method comprises the following steps: adding a heavy metal ion remover into a palladium-containing reactionsolution; after the remover is separated, a solid is separated out from an organic phase, and the crizotinib intermediate (R)-4-(4-(6-amino-5-(1-(2, 6-dichloro-3-fluorophenyl) ethoxy) pyridine-3-yl)-1H-pyrazol-1-yl) tert-butyl ester piperidine-1- carboxylate tert-butyl ester with the palladium content as low as 10 ppm is obtained. The method is simple to operate, saves an organic solvent and is suitable for industrial production.

The invention discloses a synthetic method of anti-tumor molecular targeted drug crizotinib, belongs to the field of pharmaceuticals, and relates to a synthetic method of a crizotinib intermediate. The method comprises two reduction processes: a bromination reaction process comprises the following reaction steps: a reduction process I: carrying out reduction reaction on a (R)-3-[1-(2,6-dichloro-3-fluorophenyl)ethoxyl]-2-nitropyridine compound and sodium dithionate under a mechanical chemical condition to generate (R)-3-[1-(2,6-dichloro-3-fluorophenyl)ethoxyl]-2-aminopyridine; a reduction process II: dissolving the (R)-3-[1-(2,6-dichloro-3-fluorophenyl)ethoxyl]-2-nitropyridine compound into an organic solvent, carrying out catalytic hydrogenation and reduction treatment to generate (R)-3-[1-(2,6-dichloro-3-fluorophenyl)ethoxyl]-2-aminopyridine; the bromination reaction process comprises a step of carrying out reaction between the compound and potassium hydrogen persulfate as well as bromate to obtain the crizotinib intermediate. The process is low in cost, the raw materials are easy to purchase, the operation is simple, convenient and safe, and the yield is high; moreover, the process is suitable for large-scale production.