308823-90-7Relevant academic research and scientific papers
Design, Synthesis, and Preclinical Efficacy of Novel Nonretinoid Antagonists of Retinol-Binding Protein 4 in the Mouse Model of Hepatic Steatosis
Cioffi, Christopher L.,Racz, Boglarka,Varadi, Andras,Freeman, Emily E.,Conlon, Michael P.,Chen, Ping,Zhu, Lei,Kitchen, Douglas B.,Barnes, Keith D.,Martin, William H.,Pearson, Paul G.,Johnson, Graham,Blaner, William S.,Petrukhin, Konstantin
, p. 5470 - 5500 (2019/06/07)
Retinol-binding protein 4 (RBP4) serves as a transporter for all-trans-retinol (1) in the blood, and it has been proposed to act as an adipokine. Elevated plasma levels of the protein have been linked to diabetes, obesity, cardiovascular diseases, and nonalcoholic fatty liver disease (NAFLD). Recently, adipocyte-specific overexpression of RBP4 was reported to cause hepatic steatosis in mice. We previously identified an orally bioavailable RBP4 antagonist that significantly lowered RBP4 serum levels in Abca4-/- knockout mice with concomitant normalization of complement system protein expression and reduction of bisretinoid formation within the retinal pigment epithelium. We describe herein the discovery of novel RBP4 antagonists 48 and 59, which reduce serum RBP4 levels by >80% in mice upon acute oral dosing. Furthermore, 59 demonstrated efficacy in the transgenic adi-hRBP4 murine model of hepatic steatosis, suggesting that RBP4 antagonists may also have therapeutic utility for the treatment of NAFLD.
Design, synthesis and evaluation of substituted piperidine based KCNQ openers as novel antiepileptic agents
Yang, Shaoning,Lu, Dingqiang,Ouyang, Pingkai
supporting information, p. 1731 - 1735 (2018/05/04)
Epilepsy is a kind of disease with complicated pathogenesis. KCNQ (Kv7) is a voltage dependent potassium channel that is mostly associated with epilepsy and thus becomes an important target in the treatment of epilepsy. In this paper, a series of substituted piperidine derivatives targeting KCNQ were designed and synthesized by using scaffold hopping and active substructure hybridization. Compounds were evaluated by fluorescence-based thallium influx assay, Rb+ flow assay and electrophysiological patch-clamp assay. Results showed that some compounds possessed more potent potassium channel opening activity than Retigabine. More significantly, compound 11 was found to have good pharmacokinetic profiles in vivo.
Bicyclic [3.3.0]-Octahydrocyclopenta[c]pyrrolo Antagonists of Retinol Binding Protein 4: Potential Treatment of Atrophic Age-Related Macular Degeneration and Stargardt Disease
Cioffi, Christopher L.,Racz, Boglarka,Freeman, Emily E.,Conlon, Michael P.,Chen, Ping,Stafford, Douglas G.,Schwarz, Daniel M.C.,Zhu, Lei,Kitchen, Douglas B.,Barnes, Keith D.,Dobri, Nicoleta,Michelotti, Enrique,Cywin, Charles L.,Martin, William H.,Pearson, Paul G.,Johnson, Graham,Petrukhin, Konstantin
, p. 5863 - 5888 (2015/08/24)
Antagonists of retinol-binding protein 4 (RBP4) impede ocular uptake of serum all-trans retinol (1) and have been shown to reduce cytotoxic bisretinoid formation in the retinal pigment epithelium (RPE), which is associated with the pathogenesis of both dry age-related macular degeneration (AMD) and Stargardt disease. Thus, these agents show promise as a potential pharmacotherapy by which to stem further neurodegeneration and concomitant vision loss associated with geographic atrophy of the macula. We previously disclosed the discovery of a novel series of nonretinoid RBP4 antagonists, represented by bicyclic [3.3.0]-octahydrocyclopenta[c]pyrrolo analogue 4. We describe herein the utilization of a pyrimidine-4-carboxylic acid fragment as a suitable isostere for the anthranilic acid appendage of 4, which led to the discovery of standout antagonist 33. Analogue 33 possesses exquisite in vitro RBP4 binding affinity and favorable drug-like characteristics and was found to reduce circulating plasma RBP4 levels in vivo in a robust manner (>90%).
4-PHENYLPIPERIDINES, THEIR PREPARATION AND USE
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, (2014/10/04)
The present invention provides a compound having the structure: (structurally represented) wherein R1, R2, R3, R4, and R5 are each independently H, halogen, CF3 or C1-C4 alkyl; R6 is H, OH, or halogen; B is a substituted or unsubstituted heterobicycle, pyridazine, pyrazole, pyrazine, thiadiazole, or triazole, wherein the heterobicycle is other than chloro substituted indole; and the pyrazole, when substituted, is substituted with other than trifluoromethyl, or a pharmaceutically acceptable salt theref.
Design, synthesis, and evaluation of nonretinoid retinol binding protein 4 antagonists for the potential treatment of atrophic age-related macular degeneration and stargardt disease
Cioffi, Christopher L.,Dobri, Nicoleta,Freeman, Emily E.,Conlon, Michael P.,Chen, Ping,Stafford, Douglas G.,Schwarz, Daniel M. C.,Golden, Kathy C.,Zhu, Lei,Kitchen, Douglas B.,Barnes, Keith D.,Racz, Boglarka,Qin, Qiong,Michelotti, Enrique,Cywin, Charles L.,Martin, William H.,Pearson, Paul G.,Johnson, Graham,Petrukhin, Konstantin
, p. 7731 - 7757 (2015/01/09)
Accumulation of lipofuscin in the retina is associated with pathogenesis of atrophic age-related macular degeneration and Stargardt disease. Lipofuscin bisretinoids (exemplified by N-retinylidene-N-retinylethanolamine) seem to mediate lipofuscin toxicity. Synthesis of lipofuscin bisretinoids depends on the influx of retinol from serum to the retina. Compounds antagonizing the retinol-dependent interaction of retinol-binding protein 4 (RBP4) with transthyretin in the serum would reduce serum RBP4 and retinol and inhibit bisretinoid formation. We recently showed that A1120 (3), a potent carboxylic acid based RBP4 antagonist, can significantly reduce lipofuscin bisretinoid formation in the retinas of Abca4-/-mice. As part of the NIH Blueprint Neurotherapeutics Network project we undertook the in vitro exploration to identify novel conformationally flexible and constrained RBP4 antagonists with improved potency and metabolic stability. We also demonstrate that upon acute and chronic dosing in rats, 43, a potent cyclopentyl fused pyrrolidine antagonist, reduced circulating plasma RBP4 protein levels by approximately 60%.
(4-PHENYL-PIPERIDIN-1-YL)-[5-1H-PYRAZOL-4YL)-THIOPHEN-3-YL]-METHANONE COMPOUNDS AND THEIR USE
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Page/Page column 68, (2011/04/19)
The present invention pertains generally to the field of therapeutic compounds. More specifically the present invention pertains to certain (4-phenyl-piperidin-1-yl)- [5-(1 H-pyrazol-4-yl)-thiophen-3-yl]-methanone compounds that, inter alia, inhibit 11 β-hydroxysteroid dehydrogenase type 1 (11 β-HSD1 ). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit 1 1 β-hydroxysteroid dehydrogenase type 1; to treat disorders that are ameliorated by the inhibition of 11 β-hydroxysteroid dehydrogenase type 1; to treat the metabolic syndrome, which includes disorders such as type 2 diabetes and obesity, and associated disorders including insulin resistance, hypertension, lipid disorders and cardiovascular disorders such as ischaemic (coronary) heart disease; to treat CNS disorders such as mild cognitive impairment and early dementia, including Alzheimer's disease; etc.
11-BETA HSD1 INHIBITORS
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Page/Page column 149, (2008/06/13)
This invention relates to inhibiting 11βHSD1.
Identification and biological evaluation of 4-(3-trifluoromethylpyridin-2- yl)piperazine-1-carboxylic acid (5-trifluoromethylpyridin-2-yl)amide, a high affinity TRPV1 (VR1) vanilloid receptor antagonist
Swanson, Devin M.,Dubin, Adrienne E.,Shah, Chandra,Nasser, Nadia,Chang, Leon,Dax, Scott L.,Jetter, Michele,Breitenbucher, J. Guy,Liu, Changlu,Mazur, Curt,Lord, Brian,Gonzales, Lisa,Hoey, Kenway,Rizzolio, Michele,Bogenstaetter, Michael,Codd, Ellen E.,Lee, Doo H.,Zhang, Sui-Po,Chaplan, Sandra R.,Carruthers, Nicholas I.
, p. 1857 - 1872 (2007/10/03)
High throughput screening using the recombinant human TRPV1 receptor was used to identify a series of pyridinylpiperazine ureas (3) as TRPV1 vanilloid receptor ligands. Exploration of the structure-activity relationships by parallel synthesis identified t
Aromatic sulfone hydroxamic acid metalloprotease inhibitor
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, (2008/06/13)
A treatment process is disclosed that comprises administering an effective amount of an aromatic sulfone hydroxamic acid that exhibits excellent inhibitory activity of one or more matrix metalloprotease (MMP) enzymes, such as MMP-2, MMP-9 and MMP-13, while exhibiting substantially less inhibition at least of MMP-1 to a host having a condition associated with pathological matrix metalloprotease activity. Also disclosed are metalloprotease inhibitor compounds having those selective activities, processes for manufacture of such compounds and pharmaceutical compositions using an inhibitor. A contemplated compound corresponds in structure to formula B, below,
