13425-93-9

Usage

Uses

Used in Pharmaceutical Industry:
4-Hydroxy-6,7-dimethoxyqunioline is used as an intermediate compound in the synthesis of various pharmaceuticals, particularly those with antimalarial properties. Its unique structure allows for the development of ring-substituted 4-aminoquinolines, which have been evaluated for their potential effectiveness against malaria.
Used in Chemical Research:
In addition to its pharmaceutical applications, 4-Hydroxy-6,7-dimethoxyqunioline is also utilized in chemical research for the study of quinoline-based compounds and their potential applications in various fields, including material science and medicinal chemistry. Its synthesis and evaluation contribute to the understanding of the structure-activity relationships of quinoline derivatives.

storage

Store at room temperature.

Upstream product

• 13436-14-1 ethyl 4-hydroxy-6,7-dimethoxyquinoline-3-carboxylate 
• 6315-89-5 3,4-dimethoxyaniline 
• 1131-62-0 1-(3,4-dimethoxyphenyl)ethanone 
• 4101-32-0 4',5'-dimethoxy-2'-nitroacetophenone 
• 26893-22-1 1,4-Dihydro-6,7-dimethoxy-4-oxo-3-quinolinecarboxylic acid 
• 4101-30-8 2-amino-4,5-dimethoxyacetophenone 
• 109-94-4 formic acid ethyl ester 
• 122-51-0 orthoformic acid triethyl ester 
• 26893-22-1 4-hydroxy-6,7-dimethoxy-2-quinolinecarboxylic acid 
• 127172-22-9 (E)-3-(N,N-dimethylamino)-1-(3,4-dimethoxyphenyl)-2-propen-1-one 
• 13436-14-1 ethyl 6,7-dimethoxy-4-oxo-1,4-dihydro-3-quinolinecarboxylate 
• 26717-39-5 [[(3,4-Dimethoxyphenyl)amino]methylene]malonic acid,diethyl ester 
• 213699-53-7 5-(((3,4-dimethoxyphenyl)amino)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione 
• 46729-91-3 1-(3,4-dimethoxyphenyl)-2-nitroethan-1-one 

Downstream Products

• 190728-24-6 6,7?dimethoxy?4?(4?nitrophenoxy)quinoline 
• 516526-44-6 4-(2-fluoro-4-nitro-phenoxy)-6,7-dimethoxy-quinoline 
• 286371-44-6 4-[(6,7-Dimethoxy-4-quinolyl)oxy]-2-chloroaniline 
• 1437323-99-3 4-(6,7-dimethoxyquinolin-4-yloxy)-2,3-difluorophenylamine 
• 67278-27-7 6,7-Dimethoxy-chinolin 
• 475108-18-0 tivozanib 
• 347161-73-3 6,7-dimethoxy-4-(2-methyl-4-nitrophenoxy)quinoline 
• 347161-76-6 4-(6,7-dimethoxyquinolin-4-yloxy)-3-methylphenylamine 
• 1621681-63-7 cabozantinib-N-oxide 

Relevant academic research and scientific papers

A new and practical synthesis of tivozanib

New and improved synthetic route of tivozanib is described on a hectogram scale. An reduction cyclization process to prepare the key intermediate 6,7-dimethoxyquinolin-4-ol from the 3-(dimethylamino)-1-(2-nitrophenyl)prop-2-en-1-one compound at H2/Ni cond

Design, Synthesis and Biological Evaluation of Novel α-Acyloxycarboxamide-Based Derivatives as c-Met Inhibitors

Dysregulated HGF/c-Met signalling has been associated with many human cancers, poor clinical outcomes, and even resistance acquisition to some approved targeted therapies. As such, c-Met kinase has emerged as an attractive target for anticancer drug discovery. Herein, a series of 6,7-disubstitued-4-(2-fluorophenoxy)quinoline derivatives bearing α-acyloxycarboxamide moiety were designed, synthesized via Passerini reaction as the key step, and evaluated for their in vitro biological activities against c-Met kinase and five selected cancer cell lines. The preliminary structure-activity relationship demonstrated that α-acyloxycarboxamide as the 5-atom linker maintained the potent antitumor potency. Among these compounds, compound 25s (c-Met IC50 = 4.06 nmol/L) was identified as the most promising lead compound and displayed the most potent antiproliferative activities against A549, HT-29 and MDA-MB-231 cell lines with IC50 of 0.39, 0.20, and 0.58 μmol/L, which were 1.3-, 1.4- and 1.2-fold superior to foretinib, respectively. The further studies indicated that compound 25s can induce apoptosis of A549 cells and arrest efficiently the cell cycle distribution in G2/M phase of A549 cells. Moreover, compound 25s can also inhibit c-Met phosphorylation in A549 cells by a dose-dependent manner. Collectively, these results indicated that compound 25s could be a potential anticancer lead compound deserving for further development.

c-Met kinase inhibitor as well as preparation method and application thereof

The invention belongs to the technical field of biological medicines, and particularly provides a c-Met kinase inhibitor represented by a general formula I. An in-vitro anti-tumor activity screening experiment shows that the compound disclosed by the invention shows relatively strong inhibitory activity on four cancer cells, namely human colon cancer cells (HT29), human non-small cell lung cancer cells (A549), human large cell lung cancer cells (H460) and human gastric cancer cells (MKN-45), and has a relatively good clinical application prospect.

N-(5-phenyl-1, 3, 4-thiadiazole-2-yl) benzamide compound

The invention belongs to the technical field of medicines, relates to a compound with antitumor activity and a specific chemical structure, and in particular relates to an N-((6, 7-dimethoxyquinoline-4-yl) oxy) methyl)-N-(5-phenyl-1, 3, 4-thiadiazole-2-yl) benzamide compound and a preparation method and an application thereof. The structural general formula of the compound is shown in the specification, wherein an R group is mono-substituted or double-substituted phenyl, fluorophenyl, chlorphenyl, bromophenyl, benzyl, benzyloxy, benzene nitro or trifluoromethyl substituted at 2-position, 3-position or 4-position. Pharmacological studies show that the compound provided by the invention has a relatively remarkable proliferation inhibition effect on HER-2 positive breast cancer cells SK-Br-3, the effect is obviously superior to that of HER-2 negative breast cancer cells MCF-7, the compound can be used for preparing antitumor drugs, and a new way is opened up for deep research and development of tumor drugs in the future. The preparation method provided by the invention is simple and feasible, relatively high in yield and easy for large-scale production.

Structure-based discovery of novel 4-(2-fluorophenoxy)quinoline derivatives as c-Met inhibitors using isocyanide-involved multicomponent reactions

The c-Met kinase has emerged as a promising target for the development of small molecule antitumor agents because of its close relationship with the progression of many human cancers, poor clinical outcomes and even drug resistance. In this study, two novel series of 6,7-disubstitued-4-(2-fluorophenoxy)quinoline derivatives containing α-acyloxycarboxamide or α-acylaminoamide scaffolds were designed, synthesized, and evaluated for their in vitro biological activities against c-Met kinase and four cancer cell lines (H460, HT-29, MKN-45, and MDA-MB-231). Most of the target compounds exhibited moderate to significant potency and possessed selectivity for H460 and HT-29 cancer cell lines. The preliminary structure-activity relationships indicated that α-acyloxycarboxamide or α-acylaminoamide as 5-atom linker contributed to the antitumor potency. Among these compounds, compound 10m (c-Met IC50 = 2.43 nM, a multitarget tyrosine kinase inhibitor) exhibited the most potent inhibitory activities against H460, HT-29 and MDA-MB-231 cell lines with IC50 of 0.14 ± 0.03 μM, 0.20 ± 0.02 μM and 0.42 ± 0.03 μM, which were 1.7-, 1.3- and 1.6-fold more active than foretinib, respectively. In addition, concentration-dependent assay and time-dependent assay indicated compound 10m can inhibit the proliferation of H460 cell in a time and concentration dependent manner. Moreover, docking studies revealed the common mode of interaction with the c-Met binding site, suggesting that 10m is a potential candidate for cancer therapy deserving further study.

Design, synthesis and biological evaluation of novel N-sulfonylamidine-based derivatives as c-Met inhibitors via Cu-catalyzed three-component reaction

In our continuing efforts to develop novel c-Met inhibitors as potential anticancer candidates, a series of new N-sulfonylamidine derivatives were designed, synthesized via Cu-catalyzed multicomponent reaction (MCR) as the key step, and evaluated for their in vitro biological activities against c-Met kinase and four cancer cell lines (A549, HT-29, MKN-45 and MDA-MB-231). Most of the target compounds showed moderate to significant potency at both the enzyme-based and cell-based assay and possessed selectivity for A549 and HT-29 cancer cell lines. The preliminary SAR studies demonstrated that compound 26af (c-Met IC50 = 2.89 nM) was the most promising compound compared with the positive foretinib, which exhibited the remarkable antiproliferative activities, with IC50 values ranging from 0.28 to 0.72 μM. Mechanistic studies of 26af showed the anticancer activity was closely related to the blocking phosphorylation of c-Met, leading to cell cycle arresting at G2/M phase and apoptosis of A549 cells by a concentration-dependent manner. The promising compound 26af was further identified as a relatively selective inhibitor of c-Met kinase, which also possessed an acceptable safety profile and favorable pharmacokinetic properties in BALB/c mouse. The favorable drug-likeness of 26af suggested that N-sulfonylamidines may be used as a promising scaffold for antitumor drug development. Additionally, the docking study and molecular dynamics simulations of 26af revealed a common mode of interaction with the binding site of c-Met. These positive results indicated that compound 26af is a potential anti-cancer candidate for clinical trials, and deserves further development as a selective c-Met inhibitor.

Novel substituted pyrazolo [1, 5-a] pyrimidine compound and preparation method and application thereof

The invention provides a novel substituted pyrazolo [1, 5-a]pyrimidine compound and a preparation method and application thereof, and particularly relates to a pyrazolo [1, 5-a]pyrimidine-containing quinoline derivative shown as a general formula (I) and pharmaceutically acceptable salts thereof, and substituent groups X, Ar and A have meanings given in the specification. The invention also relates to a compound represented by the general formula (I), wherein the compound has a strong c-Met kinase inhibition effect. The invention also relates to application of the compound and the pharmaceutically acceptable salt thereof in preparation of drugs for treating and/or preventing diseases caused by abnormal high expression of c-Met kinase, especially application in preparation of drugs for treating and/or preventing cancers.

BIHETEROCYCLIC COMPOUND

The present invention provides a compound of formula (1) and a pharmaceutical composition comprising the compound useful as a nerve regeneration promoter wherein R1-L- is R1—OC(O)—, or the like, R1 is hydrogen atom, optionally-substituted C1-6 alkyl group, optionally-substituted 3- to 8-membered cycloalkyl group, or the like, R2 is hydrogen atom or the like, Ring A is formula (2) or formula (3) wherein R3 is hydrogen atom, optionally-substituted C1-6 alkyl group, or the like, the part of X, Y, and Z is X═Y—Z, X—Y═Z, or X—Y—Z, X is nitrogen atom, NR4 (R4 is hydrogen atom, optionally-substituted C1-6 alkyl group, or the like), or the like, Y is carbon atom or the like, and Z is carbon atom, nitrogen atom or the like.

Design, synthesis, and biological evaluation of 4-((6,7-dimethoxyquinoline-4-yl)oxy)aniline derivatives as FLT3 inhibitors for the treatment of acute myeloid leukemia

FMS-like tyrosine kinase 3 (FLT3) was an important therapeutic target in acute myeloid leukemia (AML). We synthesized two series of 4-((6,7-dimethoxyquinoline-4-yl)oxy)aniline derivatives possessing the semicarbazide moiety and 2,2,2-trifluoro-N,N′-dimeth

Design, synthesis and evaluation of sulfonylurea-containing 4-phenoxyquinolines as highly selective c-Met kinase inhibitors

Deregulation of receptor tyrosine kinase c-Met has been reported in human cancers and is considered as an attractive target for small molecule drug discovery. In this study, a series of 4-phenoxyquinoline derivatives bearing sulfonylurea moiety were designed, synthesized and evaluated for their c-Met kinase inhibition and cytotoxicity against tested four cell lines in vitro. The pharmacological data indicated that most of the tested compounds showed moderate to significant potency as compared with foretinib, with the most promising compound 13x (c-Met kinase IC50 = 1.98 nM) demonstrated relatively good selectivity versus 10 other tyrosine kinases and remarkable cytotoxicities against HT460, MKN-45, HT-29 and MDA-MB-231 with IC50 values of 0.055 μM, 0.064 μM, 0.16 μM and 0.49 μM, respectively. The preliminary structure activity relationships indicated that a sulfonylurea moiety as linker as well as mono-EGWs (such as R1 = 4-F) on the terminal phenyl rings contributed to the antitumor activity.