Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
  • A61K31/47—Quinolines; Isoquinolines
  • A61K31/4709—Non-condensed quinolines and containing further heterocyclic rings
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/506—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim not condensed and containing further heterocyclic rings
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/517—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with carbocyclic ring systems, e.g. quinazoline, perimidine
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
  • A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
  • A61K31/519—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/535—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
  • A61K31/5375—1,4-Oxazines, e.g. morpholine
  • A61K31/5377—1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K31/00—Medicinal preparations containing organic active ingredients
  • A61K31/33—Heterocyclic compounds
  • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • A61K31/55—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole
  • A61K31/551—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having seven-membered rings, e.g. azelastine, pentylenetetrazole having two nitrogen atoms, e.g. dilazep
  • A61K31/5513—1,4-Benzodiazepines, e.g. diazepam or clozapine
  • A61K31/5517—1,4-Benzodiazepines, e.g. diazepam or clozapine condensed with five-membered rings having nitrogen as a ring hetero atom, e.g. imidazobenzodiazepines, triazolam
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
  • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P35/00—Antineoplastic agents
  • A61P35/04—Antineoplastic agents specific for metastasis

Definitions

• the invention relates to the field of biomedicine, in particular to the application of a compound in the preparation of an inhibitory drug targeting ErbB2 mutants.
• ErbB2 gene amplification/protein overexpression (referred to as ErbB2 positivity) is a common mechanism for ErbB2 activation, and studies over the past 20 years have confirmed that ErbB2 protein overexpression, either through gene amplification or transcriptional inactivation, is often associated with Carcinogenicity of various solid tumors.
• ErbB2-positive tumors such as breast cancer, gastric cancer, esophageal cancer, ovarian cancer, endometrial cancer, colorectal cancer, lung cancer, etc., among which, the expression of ErbB2 is relatively higher in breast cancer and gastric cancer.
• ErbB2 an oncogenic driver, is a well-established therapeutic target in breast and gastric cancers.
• ErbB2 mutations occur with low frequency in several tumor types, especially breast cancer (3%), colon cancer (2-3%) and lung cancer (2-3%).
• Other human tumor types have also been reported to harbor ErbB2 mutations, including head and neck cancer, bladder cancer, gastric cancer, ovarian cancer, and liver cancer (Oncotarget, 2018, 9(11):9741-9750).
• ErbB2-positive patients have been reported to be resistant to anti-ErbB2 therapy.
• ErbB2 is a key mechanism. Mutant activation of ErbB2 can be caused by three somatic molecular alterations: insertion and missense mutations in the kinase domain, missense mutations in the extracellular domain, or deletion mutations in the extracellular domain, resulting in a truncated form of ErbB2 (J Clin Oncol, 2020). Perhaps due in part to the lack of effective targeted therapy, ErbB2 mutations have a worse prognosis compared to other oncogenic drivers.
• Lung cancer is one of the most frequently diagnosed cancers, with ErbB2 mutation as an oncogenic driver, with an incidence of 2-3% in non-small cell lung cancer (NSCLC) and up to 6.7% in EGFR/ALK/ROS1 triple-negative NSCLC % (BMC Cancer 2016;16:828).
• NSCLC non-small cell lung cancer
• ErbB2 mutation is a rare mutation in lung adenocarcinoma, it still has potential clinical significance given the large base of lung adenocarcinoma. It has been reported in the literature that the incidence of brain metastases in patients with ErbB2 mutant lung cancer during treatment is higher than that in KRAS mutant patients (28% vs. 16%) (Cancer, 2019 Aug 30.).
• CN109422755A discloses a class of compounds that can effectively inhibit unmutated ErbB2, but due to ErbB2 mutation leading to its structural change, ErbB2 mutants are resistant to ErbB2 inhibitors, so an effective inhibitor targeting ErbB2 mutants is urgently needed agent.
• the technical problem to be solved by the present invention is to provide an application of a compound in the preparation of an inhibitory drug targeting ErbB2 mutants in order to overcome the defect of the lack of effective inhibitors targeting ErbB2 mutants in the prior art.
• One of the technical solutions provided by the present invention is: a compound containing the structure shown in Chemical Formula 1, a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or The application of crystal form in the preparation of targeted ErbB2 mutant inhibitory drugs;
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• the compound containing the structure shown in Chemical Formula 1 a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or a crystal form thereof,
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• the compound containing the structure shown in Chemical Formula 1 a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or a crystal form thereof,
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• One of the technical solutions provided by the present invention is: a compound containing the structure shown in Chemical Formula 1, a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or The application of crystal form in the preparation of medicine for treating or preventing ErbB2 mutant-related diseases;
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• the compound containing the structure shown in Chemical Formula 1 a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or a crystal form thereof;
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• the compound containing the structure shown in Chemical Formula 1 a pharmaceutically acceptable salt thereof, a solvate thereof, a solvate of a pharmaceutically acceptable salt thereof, or a crystal form thereof,
• R 1 is halogen or C 1- C 6 alkane
• Each R3 is independently
• n 1 or 2;
• G is N or C-CN.
• R 1 when R 1 is a halogen, the halogen is preferably Cl; when R 1 is a C 1- C 6 alkane, the C 1- C 6 alkane is preferably a methyl group.
• R 2 is
• R 3 is preferably preferably preferably
• R 3 is preferably two ortho groups, one of which is Another group is preferably
• the compound containing the structure shown in Chemical Formula 1 is preferably selected from (R,Z)-N-(4-((4-([1,2,4]triazolo[1,5-a]pyridine-7 -yloxy)-3-methylphenyl)amino)-7-ethoxyquinazolin-6-yl)-2-fluoro-3-(1-methylpyrrol-2-yl)acrylamide, Lapatinib, Tocatinib, Pyrotinib, Neratinib, one or more of them.
• the mutation type of the ErbB2 mutant of the present invention preferably comprises one or more of D769H, D769Y, R896C, V777L, G766>VC and A775_G776insYVMA.
• the ErbB2 mutation type is D769H, D769Y, R896C, V777L, G766>VC or A775_G776insYVMA
• the compound containing the structure shown in Chemical formula 1 is (R,Z)-N-( 4-((4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)amino)-7-ethoxyquinazole olin-6-yl)-2-fluoro-3-(1-methylpyrrol-2-yl)acrylamide.
• the ErbB2 mutant type is D769H, D769Y, R896C, V777L or A775_G776insYVMA, and the compound containing the structure shown in Chemical formula 1 is lapatinib.
• the ErbB2 mutant type is D769H, D769Y, R896C or V777L, and the compound containing the structure shown in Chemical formula 1 is tucatinib.
• the ErbB2 mutant type is D769H, D769Y, R896C or V777L, and the compound containing the structure shown in Chemical Formula 1 is pyrotinib.
• the ErbB2 mutant type is D769H, D769Y, R896C or V777L, and the compound containing the structure shown in Chemical formula 1 is neratinib.
• the rbB2 mutant type is D769H, D769Y, R896C or V777L, and the compound containing the structure shown in Chemical formula 1 is any one of the following structures:
• the ErbB2 mutation-related disease of the present invention is preferably ErbB2 mutant cancer
• the ErbB2 mutant cancer preferably comprises breast cancer, colon cancer, head and neck cancer, bladder cancer, stomach cancer, ovarian cancer, liver cancer or lung cancer;
• the lung cancer is further preferably non-small cell lung cancer.
• the treatment of the present invention is preferably inhibiting tumor metastasis and/or growth, and the inhibiting tumor growth includes inhibiting the growth of primary tumor and metastatic tumor, and the metastatic tumor is preferably brain metastatic tumor.
• the medicament of the present invention preferably further comprises a pharmaceutically acceptable carrier.
• the compound containing the structure shown in Chemical Formula 1 according to the present invention is preferably the only active ingredient of the medicine, or, together with other ErbB2 mutation inhibitors or drugs for treating cancer, as the active ingredient.
• the content of the compound containing the structure shown in Chemical Formula 1 in the medicine of the present invention is preferably a content that reaches a therapeutically effective amount.
• the compound (R,Z)-N-(4-((4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methyl ylphenyl)amino)-7-ethoxyquinazolin-6-yl)-2-fluoro-3-(1-methylpyrrol-2-yl)acrylamide is represented as compound I:
• halogen refers to a Group VIIA element of the periodic system.
• alkane refers to a compound in which the carbon atoms in the molecule are all connected by carbon-carbon single bonds, and the rest of the valence bonds are combined with hydrogen.
• treatment can be used to refer to both therapeutic and prophylactic treatment.
• prophylaxis can be used to mean that a pathological condition or disease in an individual is alleviated or alleviated.
• treatment includes application or any form of administration for the treatment of disease in mammals, including humans. Additionally, the term includes inhibiting or slowing the disease or the progression of the disease. Include the meaning of restoring or repairing impaired or lost function, so as to provide partial or complete remission of disease; to stimulate inefficient processes; or to alleviate severe disease.
• the term "therapeutically effective amount” or “pharmaceutically effective amount” refers to an amount of a compound or composition sufficient to prevent or treat the disease in question, sufficient to treat the disease with a reasonable benefit/risk ratio, and suitable for medical use will not cause adverse effects. may vary depending on factors including the patient's health status, disease severity, drug activity, patient susceptibility to the drug, mode of administration, time of administration, route of administration and excretion rate, duration of treatment, formulation or concurrently administered drugs, and the present Other factors in the medical field well known in the art determine the level of an effective amount.
• the therapeutically effective amount of Compound I is 10-40 mg/kg, such as 10, 15, 20, 25, 30, 35, or 40 mg/kg.
• the pharmaceutically acceptable carrier may be any carrier as long as the carrier is a non-toxic substance suitable for delivery to a patient.
• Distilled water, alcohol, fat, wax and inert solid may be included as carriers, and pharmaceutically acceptable adjuvants (buffering agents, dispersing agents) may also be included.
• the pharmaceutical composition can be prepared into a formulation according to its administration route using conventional methods known in the art.
• pharmaceutically acceptable means that the toxicity of the carrier does not exceed the amount to be tolerated by the administered (prescribed) subject, while not inhibiting the activity of the active ingredient.
• the reagents and raw materials used in the present invention are all commercially available.
• the positive improvement effect of the present invention is that the compounds provided by the present invention have inhibitory activity on ErbB2 mutants, and can effectively inhibit the proliferation of ErbB2 mutant tumor cells.
• the compounds provided by the present invention, especially compound I have good inhibitory activity on the proliferation of ErbB2 mutation on NCI-H1781 and Ba/F3 cell lines, and have good inhibitory activity on B cell lymphoma cells.
• the mouse xenograft model of Ba/F3ErbB2A775_G776insYVMA cells it can effectively inhibit tumor growth. It shows the potential clinical application value of these compounds.
• Step A Preparation of 7-ethoxy-6-nitroquinazolin-4-ol: 7-Fluoro-6-nitroquinazolin-4-ol (4000 mg, 19.13 mmol) was dissolved in tetrahydrofuran (20 ml) ), the ice-water bath was cooled to 0 degrees, and the solution of sodium ethoxide (4000 mg, 58.78 mmol) in absolute ethanol (20 ml) was slowly dropped into the reaction solution, gradually raised to room temperature, and stirred for 16 hours. Under an ice-water bath, the pH value of the reaction solution was adjusted to 5-6 with acetic acid, filtered, and dried in vacuo to obtain 4000 mg of a pale yellow solid, which was directly used in the next reaction.
• Step B Preparation of 4-chloro-7-ethoxy-6-nitroquinazoline: 7-ethoxy-6-nitroquinazolin-4-ol (4000 mg, 17.01 mmol) was dissolved in Phosphorus oxychloride (50 ml) was heated to reflux with stirring for 4 hours. Then the reaction solution was concentrated to dryness under reduced pressure, the residue was dissolved in dichloromethane (500ml), washed with water (500ml) and saturated brine (500ml) successively, dried over anhydrous sodium sulfate for 2 hours, and concentrated under reduced pressure to obtain a light The yellow solid was 4000 mg, the yield was 92.7%, and was directly used in the next reaction.
• Step C N-(4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)-7-ethoxy-6 -
• nitroquinazolin-4-amine 4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline (250mg , 1.04 mmol), 4-chloro-7-ethoxy-6-nitroquinazoline (400 mg, 1.58 mmol), potassium carbonate (290 mg, 2.10 mmol) were mixed in N,N-dimethylformamide (10 mL ) and stirred at room temperature.
• Step D N4-(4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)-7-ethoxyquinazole
• N-(4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl )-7-ethoxy-6-nitroquinazolin-4-amine 590mg, 1.29mmol
• methanol (20ml) Raney nickel was added, argon was replaced three times, hydrogen was passed through, and stirred at room temperature for 2 Hours. Celite was filtered and concentrated under reduced pressure to obtain 330 mg of solid, which was directly used in the next reaction.
• Step E Diethyl(2-((4-((4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl )amino)-7-ethoxyquinazolin-6-yl)amino)-1-fluoro-2-oxoethyl)phosphine: 7-ethoxyN4-[3-methyl-4 -([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)phenyl]quinazoline-4,6-diamine (1.15 g, 2.69 mmol) and 2- Diethoxyphosphoryl-2-fluoro-acetic acid (691 mg, 3.22 mmol) was added to 20 mL of pyridine, 1.5 mL of phosphorus oxychloride was added dropwise at 0 degrees, and the reaction was carried out for 1.5 hours.
• the reaction was quenched with aqueous sodium bicarbonate, concentrated under reduced pressure to give a residue, dichloromethane and water were added, and the organic phase was discarded.
• the aqueous phase was extracted with dichloromethane (60 mL ⁇ 3), and the organic phases were combined and dried over anhydrous sodium sulfate. Concentrate under reduced pressure to obtain the crude product, which was separated and purified by column chromatography to obtain 920 mg of a yellow solid with a yield of 55%.
• Step F (R,Z/E)-2-(3-((4-((4-([1,2,4]triazolo[1,5-a]pyridin-7-yloxy) -3-Methylphenyl)amino)-7-ethoxyquinazolin-6-yl)amino)-2-fluoro-3-oxoprop-1-en-1-yl)pyrrolidine-1-
• tert-butyl carboxylate sodium hydroxide (359 mg, 8.97 mmol) was dissolved in 18 mL of mixed solvent ethanol and 1.8 mL of water, and diethyl (2-((4-((4-([1,2 ,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)amino)-7-ethoxyquinazolin-6-yl)amino)-1- Fluoro-2-oxoethyl)phosphine (700mg, 1.12
• Step G (R,Z)-N-(4-((4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylbenzene (R,Z/E)-(R,Z/E)- 2-(3-((4-((4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenyl)amino)- 7-Ethoxyquinazolin-6-yl)amino)-2-fluoro-3-oxoprop-1-en-1-yl)pyrrolidine-1-carboxylate tert-butyl ester mixture (540 mg, 0.81 mmol ) was dissolved in 16 mL of dichloromethane, 4 mL of trifluoroacetic acid was added, and the mixture was stirred at room temperature for 3 hours.
• compound 2-compound 7, compound 10-compound 15, and compound 17 have been disclosed in WO2019042409A1 and obtained according to the preparation method described in the patent application; compound 8, compound 9 and compound 16 have been disclosed in WO2017148391A1, according to The preparation method described in this patent application is obtained.
• Lapatinib, Tocatinib, Pyrotinib, Neratinib are purchased commercially.
• Enzyme reaction test conditions the incubation time of the test compound is 20 minutes, the concentration of ATP is 10 ⁇ M, and the enzyme reaction time is 2 hours;
• Enzyme reaction buffer was 20 mM HEPES (pH 7.5), 10 mM MgCl2 , 2 mM MnCl2, 1 mM EGTA, 0.01% Brij35, 0.02 mg/ml BSA, 0.1 mM Na3VO4 , 2 mM DTT, 1% DMSO.
• the enzymatic reaction steps are:
• test compounds were added to the enzyme-substrate mixed solution at the corresponding concentrations, and incubated at room temperature for 20 minutes;
• % Kinase Activity (Remaining activity of kinase of test compound sample/Kinase activity of vehicle control sample (DMSO))*100%.
• the IC50 of the compound was calculated from the % kinase activity fit at different compound concentrations.
• the control compound is Staurosporine, which is an effective, non-selective protein kinase inhibitor and an apoptosis inducer, and its function is to prove the effectiveness of the experimental system.
• Lapatinib, tocatinib, pyrotinib, neratinib and compound I all contain the structures shown in chemical formula 1, and their structures are respectively as follows:
• Lapatinib, tucatinib, pyrotinib, neratinib and chemical formula 1 all had inhibitory properties on ErbB2 mutants, and most compounds in chemical formula 1 had higher inhibitory properties than lapatinib, tucatinib Catinib, pyrotinib, and neratinib.
• Cells were cultured and cells in logarithmic growth phase were harvested and counted using a platelet counter. Cell viability was detected by trypan blue exclusion method to ensure cell viability was above 90%. After in vitro culture, 2 ⁇ 10 6 cells were obtained. The cell suspension was added to a 96-well plate (90 ⁇ L/well) at an amount of 1 ⁇ 10 3 cells/well, and cultured overnight at 37° C., 5% CO 2 , and 95% humidity. A 10-fold drug solution was prepared, the highest detection concentration was 10 ⁇ M, and the 3-fold dilution was 9 concentrations. 10 ⁇ L of the drug solution was added to each well of a 96-well plate seeded with cells, and three duplicate wells were set for each drug concentration. Cells in medicated 96-well plates were incubated at 37° C., 5% CO 2 , and 95% humidity for an additional 72 hours before CTG analysis was performed.
• NPSG mice (Shanghai Jihui Laboratory Animal Feeding Co., Ltd., certificate: No. 20170012006783), male, were inoculated subcutaneously with Ba/F3 ErbB2 A775_G776insYVMA cells (cultured in vitro, obtained 9 ⁇ 10 7 cells) on the right shoulder, when the average tumor When the volume reached 130 mm 3 , they were randomly divided into 6 groups according to tumor volume and body weight, with 10 animals in each group, and the administration started immediately. After administration, the body weight and tumor volume of mice were measured twice a week, and the mice were continuously administered until Day 13 of the experiment. On the 14th day of the experiment, the post-drug collection operation was performed for each group.

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