62456-15-9Relevant academic research and scientific papers
D2 Dopamine Receptor G Protein-Biased Partial Agonists Based on Cariprazine
Shen, Yudao,McCorvy, John D.,Martini, Michael L.,Rodriguiz, Ramona M.,Pogorelov, Vladimir M.,Ward, Karen M.,Wetsel, William C.,Liu, Jing,Roth, Bryan L.,Jin, Jian
, p. 4755 - 4771 (2019/05/08)
Functionally selective G protein-coupled receptor ligands are valuable tools for deciphering the roles of downstream signaling pathways that potentially contribute to therapeutic effects versus side effects. Recently, we discovered both Gi/o-bi
Linker-switch approach towards new ATP binding site inhibitors of DNA gyrase B
Juki?, Marko,Ila?, Janez,Brvar, Matja?,Kikelj, Danijel,Cesar, Jo?ko,Anderluh, Marko
supporting information, p. 500 - 514 (2016/10/04)
Due to increasing emergence of bacterial resistance, compounds with new mechanisms of action are of paramount importance. One of modestly researched therapeutic targets in the field of antibacterial discovery is DNA gyrase B. In the present work we synthesized a focused library of potential DNA gyrase B inhibitors composed of two key pharmacophoric moieties linked by three types of sp3-rich linkers to obtain three structural classes of compounds. Using molecular docking, molecular dynamics and analysis of conserved waters in the binding site, we identified a favourable binding mode for piperidin-4-yl and 4-cyclohexyl pyrrole-2-carboxamides while predicting unfavourable interactions with the active site for piperazine pyrrole-2-carboxamides. Biological evaluation of prepared compounds on isolated enzyme DNA gyrase B confirmed our predictions and afforded multiple moderately potent inhibitors of DNA gyrase B. Namely trans-4-(4,5-dibromo-1H-pyrrole-2-carboxamide)cyclohexyl)glycine and 4-(4-(3,4-dichloro-5-methyl-1H-pyrrole-2-carboxamido)piperidin-1-yl)-4-oxobutanoic acid with an IC50value of 16 and 0.5?μM respectively.
Polycyclic Azetidines and Pyrrolidines via Palladium-Catalyzed Intramolecular Amination of Unactivated C(sp3)-H Bonds
Zhao, Jie,Zhao, Xiao-Jing,Cao, Pei,Liu, Ji-Kai,Wu, Bin
supporting information, p. 4880 - 4883 (2017/09/23)
A novel strategy to construct complex polycyclic nitrogen-containing heterocycles from aliphatic amines via picolinamide-assisted palladium-catalyzed C-H bond activation reaction was reported. The reaction exhibits broad substrate scope for the synthesis of various azabicyclic scaffolds, including azetidines and tropane-class alkaloids. Application of this method to naturally occurring (-)-cis-myrtanylamine, an unprecedented type of carbon-carbon bond activation, in which the electron-pair involved initiates an intramolecular "SN2-like" displacement of a cyclopalladium-fragment from a tertiary center, is described.
Prescreening of Nicotine Hapten Linkers in Vitro To Select Hapten-Conjugate Vaccine Candidates for Pharmacokinetic Evaluation in Vivo
Arutla, Viswanath,Leal, Joseph,Liu, Xiaowei,Sokalingam, Sriram,Raleigh, Michael,Adaralegbe, Adejimi,Liu, Li,Pentel, Paul R.,Hecht, Sidney M.,Chang, Yung
supporting information, p. 286 - 298 (2017/05/15)
Since the demonstration of nicotine vaccines as a possible therapeutic intervention for the effects of tobacco smoke, extensive effort has been made to enhance nicotine specific immunity. Linker modifications of nicotine haptens have been a focal point for improving the immunogenicity of nicotine, in which the evaluation of these modifications usually relies on in vivo animal models, such as mice, rats or nonhuman primates. Here, we present two in vitro screening strategies to estimate and predict the immunogenic potential of our newly designed nicotine haptens. One utilizes a competition enzyme-linked immunoabsorbent assay (ELISA) to profile the interactions of nicotine haptens or hapten-protein conjugates with nicotine specific antibodies, both polyclonal and monoclonal. Another relies on computational modeling of the interactions between haptens and amino acid residues near the conjugation site of the carrier protein to infer linker-carrier protein conjugation effect on antinicotine antibody response. Using these two in vitro methods, we ranked the haptens with different linkers for their potential as viable vaccine candidates. The ELISA-based hapten ranking was in an agreement with the results obtained by in vivo nicotine pharmacokinetic analysis. A correlation was found between the average binding affinity (IC50) of the haptens to an anti-Nic monoclonal antibody and the average brain nicotine concentration in the immunized mice. The computational modeling of hapten and carrier protein interactions helps exclude conjugates with strong linker-carrier conjugation effects and low in vivo efficacy. The simplicity of these in vitro screening strategies should facilitate the selection and development of more effective nicotine conjugate vaccines. In addition, these data highlight a previously under-appreciated contribution of linkers and hapten-protein conjugations to conjugate vaccine immunogenicity by virtue of their inclusion in the epitope that binds and activates B cells.
Cis-1-Oxo-heterocyclyl-4-amido cyclohexane derivatives as NPY5 receptor antagonists
Burns, James Ford,Chen, Bin,Chen, Chien-An,Doller, Dario,Edelmenky, Eman,Jiang, Yu,Peterson, John M.,Sabio, Michael,Weiss, Jessie,White, Andrew D.,Wu, Lingyun,Bhardwaj, Rajinder,Chandrasena, Gamini,Boyle, Noel J.,Huang, Xinyan
supporting information, p. 1458 - 1461 (2014/03/21)
The NPY5 receptor binding and pharmacokinetic properties of a novel series of cis-1-oxo-heterocyclyl-4-amido-cyclohexane derivatives are described.
Discovery of a novel series of potent non-nucleoside inhibitors of hepatitis C virus NS5B
Schoenfeld, Ryan C.,Bourdet, David L.,Brameld, Ken A.,Chin, Elbert,De Vicente, Javier,Fung, Amy,Harris, Seth F.,Lee, Eun K.,Le Pogam, Sophie,Leveque, Vincent,Li, Jim,Lui, Alfred S.-T.,Najera, Isabel,Rajyaguru, Sonal,Sangi, Michael,Steiner, Sandra,Talamas, Francisco X.,Taygerly, Joshua P.,Zhao, Junping
supporting information, p. 8163 - 8182 (2013/11/06)
Hepatitis C virus (HCV) is a major global public health problem. While the current standard of care, a direct-acting antiviral (DAA) protease inhibitor taken in combination with pegylated interferon and ribavirin, represents a major advancement in recent years, an unmet medical need still exists for treatment modalities that improve upon both efficacy and tolerability. Toward those ends, much effort has continued to focus on the discovery of new DAAs, with the ultimate goal to provide interferon-free combinations. The RNA-dependent RNA polymerase enzyme NS5B represents one such DAA therapeutic target for inhibition that has attracted much interest over the past decade. Herein, we report the discovery and optimization of a novel series of inhibitors of HCV NS5B, through the use of structure-based design applied to a fragment-derived starting point. Issues of potency, pharmacokinetics, and early safety were addressed in order to provide a clinical candidate in fluoropyridone 19.
The discovery and optimization of a novel class of potent, selective, and orally bioavailable anaplastic lymphoma kinase (ALK) inhibitors with potential utility for the treatment of cancer
Lewis, Richard T.,Bode, Christiane M.,Choquette, Deborah M.,Potashman, Michele,Romero, Karina,Stellwagen, John C.,Teffera, Yohannes,Moore, Earl,Whittington, Douglas A.,Chen, Hao,Epstein, Linda F.,Emkey, Renee,Andrews, Paul S.,Yu, Violeta L.,Saffran, Douglas C.,Xu, Man,Drew, Allison,Merkel, Patricia,Szilvassy, Steven,Brake, Rachael L.
experimental part, p. 6523 - 6540 (2012/10/18)
A class of 2-acyliminobenzimidazoles has been developed as potent and selective inhibitors of anaplastic lymphoma kinase (ALK). Structure based design facilitated the rapid development of structure-activity relationships (SAR) and the optimization of kinase selectivity. Introduction of an optimally placed polar substituent was key to solving issues of metabolic stability and led to the development of potent, selective, orally bioavailable ALK inhibitors. Compound 49 achieved substantial tumor regression in an NPM-ALK driven murine tumor xenograft model when dosed qd. Compounds 36 and 49 show favorable potency and PK characteristics in preclinical species indicative of suitability for further development.
CHEMOKINE RECEPTOR BINDING COMPOUNDS
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Page/Page column 89, (2010/11/26)
The present invention relates to chemokine receptor binding compounds, pharmaceutical compositions and their use. More specifically, the present invention relates to modulators of chemokine receptor activity, preferably modulators of CCR4 or CCR5. In one aspect, these compounds demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
Identification of 4-amino-2-cyclohexylaminoquinazolines as metabolically stable melanin-concentrating hormone receptor 1 antagonists
Kanuma, Kosuke,Omodera, Katsunori,Nishiguchi, Mariko,Funakoshi, Takeo,Chaki, Shigeyuki,Nagase, Yasuko,Iida, Izumi,Yamaguchi, Jun-ichi,Semple, Graeme,Tran, Thuy-Anh,Sekiguchi, Yoshinori
, p. 3307 - 3319 (2007/10/03)
The optimization of the distance between two key pharmacophore features within our first hit compounds 1a and 2a led to the identification of a new class of potent non-peptidic antagonists for the MCH-R1, based around 4-amino-2-cyclohexylaminoquinazolines. In particular, ATC0065 (2c), N2-[cis-4-({2-[4-Bromo-2-(trifluoromethoxy)phenyl]ethyl}amino)cyclohexyl]-N4,N4-dimethylquinazoline-2,4-diamine dihydrochloride, bound with high affinity to the MCH-R1 (IC50 value of 16 nM) and showed good metabolic stability in liver microsomes from human and rat.
VLA-4 INHIBITORS
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, (2008/06/13)
The present invention relates to a compound represented by the following formula (I): (wherein, W represents WA-A1 -WB - (in which, WA is substituted or unsubstituted aryl, etc., A1 is -NR1-, single bond, -C(O)-, etc., and WB is substituted or unsubstituted arylene, etc.), R is single bond, -NH-, -OCH2-, alkenylene, etc., X is -C(O) -CH2-, etc., and M is, for example, the following formula: (in which, R11, R12 and R13 each independently represents hydrogen, hydroxyl, amino, halogen, etc., R14 is hydrogen or lower alkyl, Y represents -CH2-O-, etc., Z is substituted or unsubstituted arylene, etc., A2 is single bond, etc, and R10 is hydroxyl or lower alkoxy)), or salt thereof; and a medicament containing the same. This compound or salt thereof selectively inhibits binding of cell adhesion molecules to VAL-4 and exhibits high bioavailability so that it is useful as a preventive and/or remedy for inflammatory diseases, autoimmune diseases, metastasis, bronchial asthma, rhinostenosis, diabetes, and the like.
