- Dual nicotinamide phosphoribosyltransferase and epidermal growth factor receptor inhibitors for the treatment of cancer
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Multitarget drugs have emerged as a promising treatment modality in modern anticancer therapy. Taking advantage of the synergy of NAMPT and EGFR inhibition, we have developed the first compounds that serve as dual inhibitors of NAMPT and EGFR. On the basis of CHS828 and erlotinib, a series of hybrid molecules were successfully designed and synthesized by merging of the pharmacophores. Among the compounds that were synthesized, compound 28 showed good NAMPT and EGFR inhibition, and excellent in vitro anti-proliferative activity. Compound 28, which is a new chemotype devoid of a Michael receptor, strongly inhibited the proliferation of several cancer cell lines, including H1975 non-small cell lung cancer cells harboring the EGFRL858R/T790M mutation. More importantly, it imparted significant in vivo antitumor efficacy in a human NSCLC (H1975) xenograft nude mouse model. This study provides promising leads for the development of novel antitumor agents and valuable pharmacological probes for the assessment of dual inhibition in NAMPT and EGFR pathway with a single inhibitor.
- Zhang, Wanheng,Zhang, Kuojun,Yao, Yiwu,Liu, Yunyao,Ni, Yong,Liao, Chenzhong,Tu, Zhengchao,Qiu, Yatao,Wang, Dexiang,Chen, Dong,Qiang, Lei,Li, Zheng,Jiang, Sheng
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supporting information
(2020/11/27)
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- Design, synthesis and biological evaluation of sulfamoylphenyl-quinazoline derivatives as potential EGFR/CAIX dual inhibitors
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Multi-target, especially dual-target, drug design has become a popular research field for cancer treatment. Development of small molecule dual-target inhibitors through hybridization strategy can provide highly potent and selective anticancer agents. In this study, three series of quinazoline derivatives bearing a benzene-sulfonamide moiety were designed and synthesized as dual EGFR/CAIX inhibitors. All the synthesized compounds were evaluated against epidermoid carcinoma (A431) and non-small cell lung cancer (A549 and H1975) cell lines, which displayed weak to potent anticancer activity. In particular, compound 8v emerged as the most potent derivative against mutant-type H1975 cells, which exhibited comparable activity to osimertinib. Importantly, 8v exhibited stronger anti-proliferative activity than osimertinib against H1975 cells under hypoxic condition. Kinase inhibition studies indicated that 8v showed excellent inhibitory effect on EGFRT790M enzyme, which was 41 times more effective than gefitinib and almost equal to osimertinib. Mechanism studies revealed that 8v exhibited remarkable CAIX inhibitory effect comparable to acetazolamide and significantly inhibited the expression of p-EGFR as well as its downstream p-AKT and p-ERK in H1975 cells. Notably, 8v was found to inhibit the expression of CAIX and its upstream HIF-1α in H1975 cells under hypoxic condition. Molecular docking was also performed to gain insights into the ligand-binding interactions of 8v inside EGFRWT, EGFRT790M and CAIX binding sites.
- Zhang, Bin,Liu, Zhikun,Xia, Shengjin,Liu, Qingqing,Gou, Shaohua
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- Benzo nitrogen hetero-aromatic ring compound, and preparation method and applications thereof
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The invention belongs to the field of chemical medicine, and discloses a benzo nitrogen hetero-aromatic ring compound represented by formula I, or pharmaceutically acceptable salts, stereisomers, racemic compounds, prodrugs, or solvates thereof. The invention also discloses applications of the benzo nitrogen hetero-aromatic ring compound in preparation of drugs used for treating diseases caused byprotein kinase and/or nicotinamide phosphoribosyltransferase abnormal activity. The benzo nitrogen hetero-aromatic ring compound represented by formula I or the salts thereof possess tyrosine kinaseand Nampt double inhibition effects, can be taken as effective components in treatment or prevention of tumor, are excellent in curative effect, and low in toxic or side effect.
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Paragraph 0136; 0137; 0144; 0145
(2018/03/01)
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- Novel quinazoline inhibitor
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The present invention relates to a novel quinazoline inhibitor, and disclose a compound represented by a formula (I) and a pharmaceutically acceptable salt thereof, a method for preparing the compoundrepresented by the formula (I) and the pharmaceutically acceptable salt thereof, a pharmaceutical composition containing a therapeutically effective amount of the compound represented by the formula(I) or the pharmaceutically acceptable salt thereof, and uses of the compound represented by the formula (I) and the pharmaceutically acceptable salt thereof. The formula (I) is defined in the specification.
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Paragraph 0159-0162
(2018/11/03)
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- Design and Evaluation of Potent EGFR Inhibitors through the Incorporation of Macrocyclic Polyamine Moieties into the 4-Anilinoquinazoline Scaffold
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Adenosine triphosphate (ATP)-competitive inhibitors of the epidermal growth factor receptor (EGFR) have provided a significant improvement in the disease outcome of nonsmall cell lung cancer (NSCLC). Unfortunately, some marketed drugs affect a transient beneficial response in EGFR mutant NSCLC patients. We reported a series of potential EGFR inhibitors through incorporation of macrocyclic polyamine into 4-anilinoquinazoline scaffold. It is expected that anilinoquinazoline part effectively bind to EGFR domain, while ATP molecules are captured by a macrocyclic polyamine moiety. In vitro experiments exhibited that most of tested compounds suppressed tumor cell proliferation more strongly than Gefitinib and Lapatinib (dual inhibitor of EGFR/HER2) as controls. In kinase assays, the compound 1f showed excellent dual inhibition activity toward EGFRWT (IC50 = 1.4 nM) and HER2 (IC50 = 2.1 nM). In vivo pharmacology evaluation of 1f showed significant antitumor activity (TGI = 44.2%) in A549 xenografts mice. The current work provided a feasible solution to optimize anilinoquinazoline-based inhibitors.
- Ju, Yilan,Wu, Jintao,Yuan, Xi,Zhao, Luqing,Zhang, Ganlin,Li, Chao,Qiao, Renzhong
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p. 11372 - 11383
(2019/01/04)
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- AN IMPROVED PROCESS FOR THE PREPARATION OF N-(3-ETHYNYLPHENYL)-7-METHOXY-6-(3-MORPHOLINOPROPOXY) QUINAZOLIN -4-AMINE DIHYDROCHLORIDE
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Present invention relates to an improved process for the preparation of N-(3- ethynylphenyl)-7-methoxy-6-(3-morpholinopropoxy) quinazolin-4-amine dihydrochloride of formula-I.
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Page/Page column 19
(2018/11/10)
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- Facile Synthesis of Novel Perfluorocarbon-Modulated 4-Anilinoquinazoline Analogues
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4-Anilinoquinazoline analogues stand out among many kinds of small molecules that inhibit the tyrosine kinase activities of epidermal growth factor receptor (EGFR), thus serving as significant molecular targets for anticancer drug design. Herein, a series of novel perfluorocarbon (PFC) modulated 4-anilinoquinazolines were designed and prepared straightforwardly by nucleophilic substitution reaction of various anilinoquinazolines and PFC-derived methanesulfonate. In the presence of base, the reaction proceeded smoothly to afford a wide range of 4-anilinoquinazolines with different substituents on aniline moiety in good to high yields. Furthermore, the PFC-modified analogues of gefitinib and erlotinib were also obtained in 93% and 90% respectively, which may have potential for developing new inhibitors of the epidermal growth factor receptor (EGFR) tyrosine kinase and fluorinated contrast agents (CA) for 19F MRI.
- Shi, Huiping,Lai, Bonan,Chen, Shizhen,Zhou, Xin,Nie, Jing,Ma, Jun-An
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p. 1693 - 1700
(2017/09/06)
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- Quinazoline derivative and application thereof
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The invention belongs to the field of medical chemistry, and particularly relates to 4-anilino quinazoline derivative with 1-methyl-2-nitro-5-methylene imidazole. The structure of the 4-anilino quinazoline derivative is shown as a graph, wherein an R represents a compound shown as a graph or -(CH)R, the n is equal to 2 or 3 or 4 or 5 or 6, and an R represents morpholino or piperidyl or pyrrolidyl or piperazinyl or dimethylamino; an R represents a compound shown as a graph or hydrogen; an R, an R and an R respectively independently selectively represent hydrogen or chlorine or fluorine or bromine or acetenyl or trifluoromethylphenol. The 4-anilino quinazoline derivative has the advantage that as shown by pharmacological experiments, effects of inhibiting tumor cell proliferation can be realized by the 4-anilino quinazoline derivative which is a compound and pharmaceutically acceptable salt of the 4-anilino quinazoline derivative.
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Paragraph 0012; 0014
(2017/08/28)
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- Design, synthesis and biological evaluation of 6-(nitroimidazole-1 H -alkyloxyl)-4-anilinoquinazolines as efficient EGFR inhibitors exerting cytotoxic effects both under normoxia and hypoxia
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A series of novel 6-(nitroimidazole-1H-alkyloxyl)-4-anilinoquinazoline derivatives (15a-15r) were designed, synthesized and evaluated as efficient EGFR inhibitors through introduction of hypoxia activated nitroimidazole moiety into the quinazoline scaffold of EGFR inhibitors. The majority of these newly synthesized compounds exhibited comparable EGFR inhibitory activities to gefitinib and moderate to excellent anti-proliferative activities against HT-29 cells under normoxia and hypoxia. The most promising compound 15c displayed the IC50 value of 0.47 nM against EGFR kinase and excellent cytotoxic effect against HT-29 cells under normoxia and hypoxia with the IC50 values of 2.21 μM and 1.62 μM, respectively. The mimic reductive activation study revealed that compound 15c exerted reductive activation properties under hypoxia, which were consistent with the in vitro metabolic study, wherein 15c was easily reductive activated under hypoxia and much more stable under normoxia. All these results suggested that 15c was a potential cancer therapeutic agent both under normoxia and hypoxia and was worth of further development.
- Cheng, Weiyan,Zhu, Shijun,Ma, Xiaodong,Qiu, Ni,Peng, Peng,Sheng, Rong,Hu, Yongzhou
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p. 826 - 834
(2015/01/08)
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- AMINOQUINAZOLINE DERIVATIVES AND THEIR SALTS AND METHODS OF USE
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The present invention relates to the field of medicine. Provided herein are aminoquinazoline derivatives, their salts and pharmaceutical formulations useful in modulating the protein tyrosine kinase activity, and in modulating inter- and/or intra-cellular signaling. Also provided herein are pharmaceutically acceptable compositions comprising the aminoquinazoline compounds and methods of using the compositions in the treatment of hyperproliferative disorders in mammals, especially humans.
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Paragraph 0341-0342
(2014/08/19)
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- AMINOQUINAZOLINE DERIVATIVES AND THEIR SALTS AND METHODS OF USE
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The present invention relates to the field of medicine. Provided herein are aminoquinazoline derivatives, their salts and pharmaceutical formulations useful in modulating the protein tyrosine kinase activity, and in modulating inter-and/or intra-cellular signaling. Also provided herein are pharmaceutically acceptable compositions comprising the aminoquinazoline compounds and methods of using the compositions in the treatment of hyperproliferative disorders in mammals, especially humans.
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Paragraph 00233
(2013/06/05)
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- Synthesis and evaluation of novel F-18 labeled 4-aminoquinazoline derivatives: Potential PET imaging agents for tumor detection
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Three novel 18F-labeled 4-aminoquinazoline derivatives, N-(3-chloro-4-fluorophenyl)-6-(2-[18F]fluoroethoxy)-7- methoxyquinazolin-4-amine([18F]1), N-(3-ethynylphenyl)-6-(2-[ 18F]fluoroethoxy)-7-methoxyquinazolin-4-amine([18F]2), and N-(3-bromophenyl)-6-(2-[18F]fluoroethoxy)-7-methoxyquinazolin-4- amine([18F]3) were synthesized and radiolabeled by two-step reaction with overall radiochemical yield of 21-24% (without decay corrected). Then we carried out their biodistribution experiments in S180 tumor-bearing mice. Results showed that they had certain concentration accumulation in tumor and fast clearance from muscle and blood. It was encouraging that [18F]3 was competitive among three 18F-labeled 4-aminoquinazoline derivatives in some aspects such as tumor/muscle uptake ratio reaching 7.70 at 60 min post-injection, tumor/blood uptake ratio reaching 6.61 at 120 min post-injection. So we compared radioactivity characteristics of [ 18F]3 with those of [18F]-FDG and L-[18F]-FET in the same animal model. The absolute radioactivity uptake of [18F]3 in tumor reached 3.31 at 60 min p.i., which was slightly higher than [ 18F]-FDG (2.16) and L-[18F]-FET (2.75) at the same time phase. For [18F]3, tumor/muscle uptake ratio peaked 7.70 at 60 min, which was obviously superior to those of [18F]-FDG and L-[ 18F]-FET at all time points. The tumor/brain uptake ratios of [ 18F]3 were 10.36, 17.42, 41.11 at 30 min, 60 min and 120 min post-injection, respectively, and are much higher than those of L-[ 18F] FET (2.54, 2.92 and 2.95) and [18F]-FDG (0.61, 1.02 and 1.33) at the same time points. All these results indicate that [ 18F]3 is promising to become a potential PET tumor imaging agent.
- Chen, Yurong,Feng, Man,Li, Shilei,Xu, Jingli,Ning, Hongyu,He, Yong,Wang, Xiao,Ding, Rui,Qi, Chuanmin
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scheme or table
p. 4745 - 4749
(2012/08/07)
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- SUBSTITUTED HETEROCYCLIC COMPOUNDS AS KINASES INHIBITORS AND METHOD OF USE THEREOF
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The present invention is directed to novel quinolines and quniazolines, their derivatives, pharmaceutically acceptable salts, solvates and hydrates thereof which are useful for the treatment of protein kinases mediated diseases and conditions. The compounds of this invention have a general Formula (I) wherein R1 to R11 and X are defined herein.
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Page/Page column 37; 38
(2011/01/12)
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- Discovery of 7-(4-(3-Ethynylphenylamino)-7-methoxyquinazolin-6-yloxy)-N- hydroxyheptanamide (CUDC-101) as a potent multi-acting HDAC, EGFR, and HER2 inhibitor for the treatment of cancer
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By incorporating histone deacetylase (HDAC) inhibitory functionality into the pharmacophore of the epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2) inhibitors, we synthesized a novel series of compounds with potent, multiacting HDAC, EGFR, and HER2 inhibition and identified 7-(4-(3-ethynylphenylamino)-7-methoxyquinazolin-6-yloxy)-N- hydroxyheptanamide 8 (CUDC-101) as a drug candidate, which is now in clinical development. 8 displays potent in vitro inhibitory activity against HDAC, EGFR, and HER2 with an IC50 of 4.4, 2.4, and 15.7 nM, respectively. In most tumor cell lines tested, 8 exhibits efficient antiproliferative activity with greater potency than vorinostat (SAHA), erlotinib, lapatinib, and combinations of vorinostat/erlotinib and vorinostat/lapatinib. In vivo, 8 promotes tumor regression or inhibition in various cancer xenograft models including nonsmall cell lung cancer (NSCLC), liver, breast, head and neck, colon, and pancreatic cancers. These results suggest that a single compound that simultaneously inhibits HDAC, EGFR, and HER2 may offer greater therapeutic benefits in cancer over single-acting agents through the interference with multiple pathways and potential synergy among HDAC and EGFR/HER2 inhibitors.
- Cai, Xiong,Zhai, Hai-Xiao,Wang, Jing,Forrester, Jeffrey,Qu, Hui,Yin, Ling,Lai, Cheng-Jung,Bao, Rudi,Qian, Changgeng
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supporting information; experimental part
p. 2000 - 2009
(2010/07/17)
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- Synthesis and in vitro antitumor activities of novel 4-anilinoquinazoline derivatives
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A series of 6, 7-dialkoxy-4-anilinoquinazolines were designed, synthesized by substituting different heterocycles on 6-position and a variety of anilines on 4-position of the quinazoline. These novel quinazoline compounds were screened for their cytotoxic effect on epidermal growth factor receptor overexpressing skin epidermoid carcinoma cell line (A431), by using nonoverexpressing tumor cells as negative control (breast adeno carcinoma cell line MCF-7). 2-Butyl-4-chloro-1-{3-[7-methoxy-4-(3-(trifluoromethyl)phenylamino)quinazolin-6-yloxy]-propyl}-1H-imidazole-5-carboxaldehyde (30) and 2-butyl-4-chloro-1-{3-[4-(3-iodophenyl amino)-7-methoxyquinazolin-6-yloxy]propyl}-1H-imidazole-5-carboxaldehyde (33) were found to be more potent against A431 cell line (IC50 3.5 and 3 μM) and their activities are comparable to gefitinib. Insilico docking experiments with human EGFR Tyrosine kinase domain (PDB id-2gs2) indicated that 33 docks at the same position as that of gefitinib involving Val702, Ala719, Ser696, and Lys721.
- Chandregowda, Venkateshappa,Kush,Chandrasekara Reddy
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experimental part
p. 3046 - 3055
(2009/10/02)
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- FORMULATION OF QUINAZOLINE BASED EGFR INHIBITORS CONTAINING A ZINC BINDING MOIETY
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The present invention relates to a composition comprising an inclusion complex of a cyclodextrin and quinazoline containing zinc-binding moiety based derivatives. The cyclodextrin is preferable a β-cyclodextrin or a derivative thereof. The quinazolines have enhanced and unexpected properties as inhibitors of epidermal growth factor receptor tyrosine kinase (EGFR-TK) and their use in the treatment of EGFR-TK related diseases and disorders such as cancer. The said derivatives may further act as HDAC inhibitors.
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- TARTRATE SALTS OF QUINAZOLINE BASED EGFR INHIBITORS CONTAINING A ZINC BINDING MOIETY
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The present invention relates to tartrate salts of quinazoline containing zinc-binding moiety based derivatives that are inhibitors of epidermal growth factor receptor tyrosine kinase (EGFR-TK) and their use in the treatment of EGFR-TK related diseases and disorders such as cancer. The tartrate salts may further act as HDAC inhibitors.
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Page/Page column 67-68
(2009/04/24)
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- MULTI-FUNCTIONAL SMALL MOLECULES AS ANTI-PROLIFERATIVE AGENTS
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The present invention relates to the compositions, methods, and applications of a novel approach to selective inhibition of several cellular or molecular targets with a single small molecule. More specifically, the present invention relates to multi-functional small molecules wherein one functionality is capable of inhibiting histone deacetylases (HDAC) and the other functionality is capable of inhibiting a different cellular or molecular pathway involved in aberrant cell proliferation, differentiation or survival.
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Page/Page column 112
(2008/06/13)
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