- Ni@Pd core-shell nanoparticles immobilized on yolk-shell Fe 3O4@polyaniline composites as a highly efficient, magnetically separable and atom-economical catalyst for reduction of nitrobenzenes
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The preparation of Ni@Pd core-shell nanoparticles immobilized on yolk-shell Fe3O4@polyaniline composites is reported. Fe 3O4 nanoclusters were first synthesized through the solvothermal method and then the SiOs
- Nabid, Mohammad Reza,Bide, Yasamin,Ghalavand, Nastaran,Niknezhad, Mahvash
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Read Online
- Entropy Versus Enthalpy Controlled Temperature/Redox Dual-Triggered Cages for Selective Anion Encapsulation and Release
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New C3-symmetric imidazole ligands were designed with phosphine and phosphine oxide linkers (LP and LPO, respectively) to demonstrate a dual-triggered dynamic closed coordination cage. Both LP and LPO
- Hamashima, Kyosuke,Yuasa, Junpei
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supporting information
(2021/12/16)
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- Design, Synthesis, Biological Evaluation, and Molecular Modeling of 2-Difluoromethylbenzimidazole Derivatives as Potential PI3Kα Inhibitors
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PI3Kα is one of the potential targets for novel anticancer drugs. In this study, a series of 2-difluoromethylbenzimidazole derivatives were studied based on the combination of molecular modeling techniques 3D-QSAR, molecular docking, and molecular dynamic
- Wang, Xiangcong,Wang, Zhonghua,Wu, Fanhong,Wu, Zhongshan,Yu, Yanyan,Zhang, Moxuan,Zhu, Ranran
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- Deconstructing Noncovalent Kelch-like ECH-Associated Protein 1 (Keap1) Inhibitors into Fragments to Reconstruct New Potent Compounds
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Targeting the protein-protein interaction (PPI) between nuclear factor erythroid 2-related factor 2 (Nrf2) and Kelch-like ECH-associated protein 1 (Keap1) is a potential therapeutic strategy to control diseases involving oxidative stress. Here, six classes of known small-molecule Keap1-Nrf2 PPI inhibitors were dissected into 77 fragments in a fragment-based deconstruction reconstruction (FBDR) study and tested in four orthogonal assays. This gave 17 fragment hits of which six were shown by X-ray crystallography to bind in the Keap1 Kelch binding pocket. Two hits were merged into compound 8 with a 220-380-fold stronger affinity (Ki = 16 μM) relative to the parent fragments. Systematic optimization resulted in several novel analogues with Ki values of 0.04-0.5 μM, binding modes determined by X-ray crystallography, and enhanced microsomal stability. This demonstrates how FBDR can be used to find new fragment hits, elucidate important ligand-protein interactions, and identify new potent inhibitors of the Keap1-Nrf2 PPI.
- Pallesen, Jakob S.,Narayanan, Dilip,Tran, Kim T.,Solbak, Sara M. ?.,Marseglia, Giuseppe,S?rensen, Louis M. E.,H?j, Lars J.,Munafò, Federico,Carmona, Rosa M. C.,Garcia, Anthony D.,Desu, Haritha L.,Brambilla, Roberta,Johansen, Tommy N.,Popowicz, Grzegorz M.,Sattler, Michael,Gajhede, Michael,Bach, Anders
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p. 4623 - 4661
(2021/05/07)
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- Overcoming imatinib resistance in chronic myelogenous leukemia cells using non-cytotoxic cell death modulators
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Recent studies examined the possibility to overcome imatinib resistance in chronic myeloid leukemia (CML) patients by combination therapy with peroxisome proliferator-activated receptor gamma (PPARγ) ligands. Pioglitazone, a full PPARγ agonist, improved the survival of patients by the gradual elimination of the residual CML stem cell pool. To evaluate the importance of the pharmacological profile of PPARγ agonists on the ability to circumvent resistance, the partial PPARγ agonist 4‘-((2-propyl-1H-benzo[d]imidazol-1-yl)methyl)-[1,1’-biphenyl]-2-carboxylic acid, derived from telmisartan, and other related derivatives were investigated. The 4-substituted benzimidazole derivatives bearing a [1,1′-biphenyl]-2-carboxamide moiety sensitized K562-resistant cells to imatinib treatment. Especially the derivatives 18a-f, which did not activate PPARγ to more than 40% at 10 μM, retrieved the cytotoxicity of imatinib in these cells. The cell death modulating properties were higher than that of pioglitazone. It is of interest to note that all novel compounds were not cytotoxic neither on non-resistant nor on resistant cells. They exerted antitumor potency only in combination with imatinib.
- Schoepf, Anna M.,Salcher, Stefan,Obexer, Petra,Gust, Ronald
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supporting information
(2019/10/22)
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- PIPERIDINE DERIVATIVE
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The purpose of the present invention is to provide a compound having excellent antibacterial activity against mycobacterium tuberculosis, multidrug-resistant tuberculosis bacteria, and/or non-tuberculous acid-fast bacteria. A compound represented by formula [I]: (in the formula, each symbol is as described in the attached specification), or a salt thereof can be used to diagnose, prevent, and/or treat tuberculosis.
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Paragraph 0496; 0514
(2019/02/19)
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- POLYCYCLIC TLR7/8 ANTAGONISTS AND USE THEREOF IN THE TREATMENT OF IMMUNE DISORDERS
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The present invention relates to compounds of Formula (I) and pharmaceutically acceptable compositions thereof, useful as toll-like receptor 7/8 (TLR7/8) antagonists. In Formula (I), Ring A is aryl or heteroaryl; Ring B is aryl or heteroary; and X is C(R4)2, O, NR4, S, S(R4), or S(R4)2.
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Paragraph 00459
(2017/07/06)
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- Exploration of SAR for novel 2-benzylbenzimidazole analogs as inhibitor of transcription factor NF-κB
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A novel series of 2-benzylbenzimidazole analogs was designed, synthesized and investigated for their in vitro activities against LPS induced NF-κB inhibition in RAW 264.7 cells using the SEAP assay. Among them, 4-((4-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6e, >100% inhibition at 30?μM, IC50?=?3.0?μM), 4-((5-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6j, 96% inhibition at 30?μM, IC50?=?4.0?μM) and 2-((4-(cyclohexylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)phenol (6k, 95% inhibition at 30?μM, IC50?=?5.0?μM) showed strong inhibitory activity. The structure activity relationship confirmed that the substitution on benzimidazole ring A with hydrophobic cyclohexylmethoxy group at position 4 or 5 markedly enhances the activity. In addition, the hydrophilic hydrogen bonding donor group (OH) at position 2 or 4 on phenyl ring B connected with one methylene spacer to the benzimidazole ring is favorable for the inhibitory activity. However, hydrophobic (–OCH3 and –Cl) groups on phenyl ring B decrease the activity.
- Boggu, Pulla Reddy,Venkateswararao, Eeda,Manickam, Manoj,Kim, Youngsoo,Jung, Sang-Hun
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p. 469 - 479
(2017/04/13)
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- Potent, Selective, and Cell Active Protein Arginine Methyltransferase 5 (PRMT5) Inhibitor Developed by Structure-Based Virtual Screening and Hit Optimization
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PRMT5 plays important roles in diverse cellular processes and is upregulated in several human malignancies. Besides, PRMT5 has been validated as an anticancer target in mantle cell lymphoma. In this study, we found a potent and selective PRMT5 inhibitor by performing structure-based virtual screening and hit optimization. The identified compound 17 (IC50 = 0.33 μM) exhibited a broad selectivity against a panel of other methyltransferases. The direct binding of 17 to PRMT5 was validated by surface plasmon resonance experiments, with a Kd of 0.987 μM. Kinetic experiments indicated that 17 was a SAM competitive inhibitor other than the substrate. In addition, 17 showed selective antiproliferative effects against MV4-11 cells, and further studies indicated that the mechanism of cellular antitumor activity was due to the inhibition of PRMT5 mediated SmD3 methylation. 17 may represent a promising lead compound to understand more about PRMT5 and potentially assist the development of treatments for leukemia indications.
- Mao, Ruifeng,Shao, Jingwei,Zhu, Kongkai,Zhang, Yuanyuan,Ding, Hong,Zhang, Chenhua,Shi, Zhe,Jiang, Hualiang,Sun, Dequn,Duan, Wenhu,Luo, Cheng
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p. 6289 - 6304
(2017/08/02)
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- Synthesis and antiproliferative evaluation of novel benzoimidazole- contained oxazole-bridged analogs of combretastatin A-4
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A series of novel oxazole-bridged analogs of combretastatin A-4 bearing a benzo[d]-imidazole as B ring were synthesized and evaluated for antiproliferative activities against five human cancer cell lines. Among all the synthesized compounds, the N-unsubstituted benzoimidazole analog 5 and the analogs 6b, 7a and 7b with a small hydrophobic group on nitrogen atom of benzoimidazole ring were identified as the most potent inhibitors of tumor cell growth with IC50 values at nanomolar levels (5, IC50 = 8.4 nM, HT29; 6b, 7a, 7b, IC50 = 9.6 nM, 3.8 nM, 3.0 nM, A549). In a murine H22 tumor xenograft model, compound 5 exhibited significant antitumor activity. The binding mode of compound 5 in the colchicine binding site of tubulin was probed.
- Zhou, Jie,Jin, Jing,Zhang, Yi,Yin, Yuwen,Chen, Xiaoguang,Xu, Bailing
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p. 222 - 232
(2013/10/01)
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- HCV NS3 PROTEASE INHIBITORS
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The present invention relates to macro-cyclic compounds of formula I that are useful as inhibitors of the hepatitis C virus (HCV) NS3 protease, their synthesis, and their use for treating or preventing HCV infections
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Page/Page column 48
(2012/04/10)
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- Phosphodiesterase inhibitors. Part 3: Design, synthesis and structure-activity relationships of dual PDE3/4-inhibitory fused bicyclic heteroaromatic-dihydropyridazinones with anti-inflammatory and bronchodilatory activity
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(-)-6-(7-Methoxy-2-trifluoromethylpyrazolo[1,5-a]pyridin-4-yl)-5-methyl-4, 5-dihydro-3-(2H)-pyridazinone (KCA-1490) is a dual PDE3/4 inhibitor that exhibits potent combined bronchodilatory and anti-inflammatory activity. A survey of potential bicyclic heteroaromatic replacement subunits for the pyrazolo[1,5-a]pyridine core of KCA-1490 has identified the 4-methoxy-2- (trifluoromethyl)benzo[d]thiazol-7-yl and 8-methoxy-2-(trifluoromethyl)quinolin- 5-yl analogues as dual PDE3/4-inhibitory compounds that potently suppress histamine-induced bronchoconstriction and exhibit anti-inflammatory activity in vivo.
- Ochiai, Koji,Takita, Satoshi,Eiraku, Tomohiko,Kojima, Akihiko,Iwase, Kazuhiko,Kishi, Tetsuya,Fukuchi, Kazunori,Yasue, Tokutaro,Adams, David R.,Allcock, Robert W.,Jiang, Zhong,Kohno, Yasushi
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p. 1644 - 1658
(2012/04/23)
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- Synthesis and cytotoxic evaluation of N-(4-methoxy-1H-benzo[d]imidazol-7- yl)-arylsulfonamide and N-aryl-(4-methoxy-1H-benzo[d]imidazol)-7-sulfonamide analogs of combretastatin A-4
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Two series of novel benzoimidazole sulfonamides as combretastatin A-4 analogs were synthesized. The cytotoxicities of the title compounds were evaluated against five different cancer cell lines. Among the tested compounds, four compounds displayed cytotoxicities against the HCT8 cell line. Compound 6a has shown the strongest potency against the tested human tumor cell lines with an IC50 value ranging from submicromolar to micromolar level.
- Zhou, Jie,Zhang, Yi,Cui, Yi-Wen,Li, Zhan-Mei,Song, Hong-Rui,Dong, Jin-Hua,Chen, Xiao-Guang,Xu, Bai-Ling
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scheme or table
p. 330 - 340
(2011/06/19)
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- Synthesis and biological evaluation of novel analogues of the pan class i phosphatidylinositol 3-kinase (PI3K) inhibitor 2-(Difluoromethyl)-1-[4,6-di(4- morpholinyl)-1,3,5-triazin-2-yl]-1 H -benzimidazole (ZSTK474)
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A structure-activity relationship (SAR) study of the pan class I PI 3-kinase inhibitor 2-(difluoromethyl)-1-[4,6-di(4-morpholinyl)-1,3,5-triazin-2- yl]-1H-benzimidazole (ZSTK474) identified substitution at the 4 and 6 positions of the benzimidazole ring as having significant effects on the potency of substituted derivatives. The 6-amino-4-methoxy analogue displayed a greater than 1000-fold potency enhancement over the corresponding 6-aza-4-methoxy analogue against all three class Ia PI 3-kinase enzymes (p110α, p110β, and p110δ) and also displayed significant potency against two mutant forms of the p110α isoform (H1047R and E545K). This compound was also evaluated in vivo against a U87MG human glioblastoma tumor xenograft model in Rag1 -/- mice, and at a dose of 50 mg/kg given by ip injection at a qd ?- 10 dosing schedule it dramatically reduced cancer growth by 81% compared to untreated controls.
- Rewcastle, Gordon W.,Gamage, Swarna A.,Flanagan, Jack U.,Frederick, Raphael,Denny, William A.,Baguley, Bruce C.,Kestell, Philip,Singh, Ripudaman,Kendall, Jackie D.,Marshall, Elaine S.,Lill, Claire L.,Lee, Woo-Jeong,Kolekar, Sharada,Buchanan, Christina M.,Jamieson, Stephen M. F.,Shepherd, Peter R.
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experimental part
p. 7105 - 7126
(2011/12/04)
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- Inhibitors of JNK
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Compounds of formula I or pharmaceutically acceptable salts thereof, wherein: wherein m, n, p, q, X Y, Z, A, R1, R2, R3, R4, R5 and Y6 are as defined herein. The compounds and compositions
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Page/Page column 29
(2011/12/14)
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- PYRIDAZINONE DERIVATIVE AND PDE INHIBITOR CONTAINING THE SAME AS ACTIVE INGREDIENT
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It is to provide a novel pyridazinone derivative represented by the following general formula (1), which is useful as a pharmaceutical and has a phosphodiesterase inhibitory action: wherein R1 represents H or C1-6 alkyl, each of R2 and R3 represents H, X, C1-6 alkoxy, Z represents O or S, and A represents AA or BB, wherein AA represents: and BB represents: wherein R4 represents H or C1-6 alkyl, and each of R5 and R6 represents C1-6 alkyl.
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Page/Page column 121
(2010/04/25)
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- PYRAZOLONE DERIVATIVE AND PDE INHIBITOR CONTAINING THE SAME AS ACTIVE INGREDIENT
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It is to provide a novel pyrazolone derivative represented by the following general formula (1), which is useful as a pharmaceutical and has a phosphodiesterase inhibitory action: wherein R1,R2: C1-6 alkyl; R3,R4: H, X, C1-6 alkoxy; Z:O, S; A:AA, BB, wherein AA represents wherein BB represents wherein R5: H, C1-6 alkyl ; R6,R7: C1-6 alkyl.
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Page/Page column 61-62
(2010/04/25)
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- Novel vanilloid receptor-1 antagonists: 2. Structure-activity relationships of 4-oxopyrimidines leading to the selection of a clinical candidate
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A series of novel 4-oxopyrimidine TRPV1 antagonists was evaluated in assays measuring the blockade of capsaicin or acid-induced influx of calcium into CHO cells expressing TRPV1. The investigation of the structure-activity relationships in the heterocyclic A-region revealed the optimum pharmacophoric elements required for activity in this series and resulted in the identification of subnanomolar TRPV1 antagonists. The most potent of these antagonists were thoroughly profiled in pharmacokinetic assays. Optimization of the heterocyclic A-region led to the design and synthesis of 23, a compound that potently blocked multiple modes of TRPV1 activation. Compound 23 was shown to be effective in a rodent "on-target" biochemical challenge model (capsaicin-induced flinch, ED50 = 0.33 mg/kg p.o.) and was antihyperalgesic in a model of inflammatory pain (CFA-induced thermal hyperalgesia, MED = 0.83 mg/kg, p.o.). Based on its in vivo efficacy and pharmacokinetic profile, compound 23 (N-{4-[6-(4-trifluoromethyl-phenyl)-pyrimidin-4-yloxy]-benzothiazol-2-yl} -acetamide; AMG 517) was selected for further evaluation in human clinical trials.
- Doherty, Elizabeth M.,Fotsch, Christopher,Bannon, Anthony W.,Bo, Yunxin,Chen, Ning,Dominguez, Celia,Falsey, James,Gavva, Narender R.,Katon, Jodie,Nixey, Thomas,Ognyanov, Vassil I.,Pettus, Liping,Rzasa, Robert M.,Stec, Markian,Surapaneni, Sekhar,Tamir, Rami,Zhu, Jiawang,Treanor, James J. S.,Norman, Mark H.
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p. 3515 - 3527
(2008/02/08)
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- Benzimidazole compound
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An object of the present invention is to provide a novel chemical compound useful as a therapeutic or prophylactic agent for acid-related diseases, having an excellent inhibitory effect against gastric acid secretion, an excellent effect of maintaining the inhibitory effect against gastric acid secretion, thereby maintaining intragastric pH high for a long time, and having more safety and appropriate physicochemical stability. Provided is a compound represented by where R1 and R3 may be the same or different and each represent a hydrogen atom or a C1-C6 alkyl group; R2 represents (5,5-dimethyl-1,3-dioxan-2-yl)methoxy group, 5,7-dioxaspiro[2.5]oct-6-ylmethoxy group, 1,5,9-trioxaspiro[5.5]undec-3-ylmethoxy group, or (2,2-dimethyl-1,3-dioxan-5-yl)methoxy group; R4, R5, R6 and R7 represent a hydrogen atom, halogen atom, C1-C6 alkyl group, C1-C6 haloalkyl group, C1-C6 alkoxy group or C1-C6 haloalkoxy group; and W1 represents a single bond, methylene or ethylene group, a salt thereof or a solvate of these.
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Page/Page column 72
(2008/06/13)
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- NIACIN RECEPTOR AGONISTS, COMPOSITIONS CONTAINING SUCH COMPOUNDS AND METHODS OF TREATMENT
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Compounds of the formula (I): as well as pharmaceutically acceptable salts and solvates are disclosed. The compounds are useful for treating dyslipidemias, and in particular, reducing serum LDL, VLDL and triglycerides, and raising HDL levels. Pharmaceutic
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Page/Page column 38-39
(2008/06/13)
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- MEDIATORS OF HEDGEHOG SIGNALING PATHWAYS, COMPOSITIONS AND USES RELATED THERETO
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The present invention makes available methods and reagents for inhibiting aberrant growth states resulting from hedgehog gain-of-function, ptc loss-of-function or smoothened gain-of-function comprising contacting the cell with a hedgehog antagonist of formula (I) in a sufficient amount to aberrant growth state, e.g., to agonize a normal ptc pathway or antagonize smoothened or hedgehog activity.
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Page/Page column 126
(2008/06/13)
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- (BENZIMIDAZOL-2-YL)-PHENYL-PHENYL-UREA COMPOUNDS AND METHODS FOR INHIBITING HEPARANASE ACTIVITY
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The present invention encompasses heparanase inhibitors, particularly to certain (benzimidazol-2-yl)-phenyl-phenyl-urea derivatives that inhibit heparanase, pharmaceutical compositions that contain the compounds, methods for making the compounds, and meth
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Page/Page column 34-35
(2010/02/11)
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- Benzimidazoles and analogs thereof as antivirals
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Provided are compounds of the formula: wherein RN1 is a substituent of formula G1-NX1X2, wherein G1 is an optionally further substituted alkylene, which optionally forms, together with RN2,
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Page/Page column 16
(2010/02/11)
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- VANILLOID RECEPTOR LIGANDS AND THEIR USE IN TREATMENTS
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Pyrimidine ethers and compositions containing them, for the treatment of acute, inflammatory and neuropathic pain, dental pain, general headache, migraine, cluster headache, mixed-vascular and non-vascular syndromes, tension headache, general inflammation, arthritis, rheumatic diseases, osteoarthritis, inflammatory bowel disorders, inflammatory eye disorders, inflammatory or unstable bladder disorders, psoriasis, skin complaints with inflammatory components, chronic inflammatory conditions, inflammatory pain and associated hyperalgesia and allodynia, neuropathic pain and associated hyperalgesia and allodynia, diabetic neuropathy pain, causalgia, sympathetically maintained pain, deafferentation syndromes, asthma, epithelial tissue damage or dysfunction, herpes simplex, disturbances of visceral motility at respiratory, genitourinary, gastrointestinal or vascular regions, wounds, burns, allergic skin reactions, pruritus, vitiligo, general gastrointestinal disorders, gastric ulceration, duodenal ulcers, diarrhea, gastric lesions induced by necrotising agents, hair growth, vasomotor or allergic rhinitis, bronchial disorders or bladder disorders.
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Page/Page column 29
(2008/06/13)
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- Substituted thiophenes: compositions, processes of making, and uses in disease treatment and diagnosis
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Substituted thiophenes, processes for their preparation, their use as medicament or diagnostic agent. The substituted thiophene derivatives have the following backbone structure: Medicaments comprising compounds of this type are of use for preventing or treating various disorders, such as, respiratory disorders and snoring, acute and chronic disorders, disorders induced by ischemic and/or reperfusion events and by proliferative or fibrotic events, disorders of the central nervous system and lipid metabolism, diabetes, blood coagulation and infection by parasites.
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Page/Page column 17
(2008/06/13)
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- Chemokine receptor binding heterocyclic compounds with enhanced efficacy
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The invention relates to heterocyclic compounds consisting of a core nitrogen atom surrounded by three pendant groups, wherein two of the three pendant groups are preferably benzimidazolyl methyl and tetrahydroquinolyl, and the third pendant group contains N and optionally contains additional rings. The compounds bind to chemokine receptors, including CXCR4 and CCR5, and demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
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- Bicyclic aryl carboxamides and their therapeutic use
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Compounds of the formula (i) have therapeutic utility via inhibition of TNF or phosphodiesterase.
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Page column 9
(2010/02/05)
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- New Herbicides
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Benzimidazolyl derivatives of formula wherein Y represents:-, an optionally substituted alkyl, alkenyl or alkynyl group; or an optionally substituted cycloalkyl group; or a group -SR, -OR, halogen, aryl or aralkyl; or 2 groups Y form a fused phenyl ring;, R2represents a group -OH, -NR7R8or -XM;, A represents a group -SO2NR7R8;, Y1represents an optionally substituted alkyl, alkenyl or alkynyl group; or an optionally substituted cycloalkyl group; or a group such as -SR, -OR, halogen, aryl, aralkyl, -O-aryl or -NR7R8;, n represents one or two;, m represents an integer from 1 to 4;, R represents an optionally substituted alkyl group; or an optionally substituted cycloalkyl group;, R7and R8represent independently a group such as hydrogen, R, aryl or aralkyl; X represents oxygen or sulphur;, M represents an optionally substituted alkyl group; or an optionally substituted cycloalkyl group; or an aryl, aralkyl, alkenyl, alkynyl, or an imine group; agriculturally acceptable salts thereof;, the herbicidal compositions comprising these compounds and their application to crop protection is described.
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