40640-97-9Relevant academic research and scientific papers
Discovery and SAR of Natural-Product-Inspired RXR Agonists with Heterodimer Selectivity to PPARδ-RXR
Nakashima, Ken-Ichi,Yamaguchi, Eiji,Noritake, Chihaya,Mitsugi, Yukari,Goto, Mayuki,Hirai, Takao,Abe, Naohito,Sakai, Eiji,Oyama, Masayoshi,Itoh, Akichika,Inoue, Makoto
, p. 1526 - 1534 (2020/05/19)
A known natural product, magnaldehyde B, was identified as an agonist of retinoid X receptor (RXR) α. Magnaldehyde B was isolated from Magnolia obovata (Magnoliaceae) and synthesized along with more potent analogs for screening of their RXRα agonistic activities. Structural optimization of magnaldehyde B resulted in the development of a candidate molecule that displayed a 440-fold increase in potency. Receptor-ligand docking simulations indicated that this molecule has the highest affinity with the ligand binding domain of RXRα among the analogs synthesized in this study. Furthermore, the selective activation of the peroxisome proliferator-activated receptor (PPAR) δ-RXR heterodimer with a stronger efficacy compared to those of PPARα-RXR and PPARγ-RXR was achieved in luciferase reporter assays using the PPAR response element driven reporter (PPRE-Luc). The PPARδactivity of the molecule was significantly inhibited by the antagonists of both RXR and PPARδ, whereas the activity of GW501516 was not affected by the RXR antagonist. Furthermore, the molecule exhibited a particularly weak PPARδagonistic activity in reporter gene assays using the Gal4 hybrid system. The obtained data therefore suggest that the weak PPARδagonistic activity of the optimized molecule is synergistically enhanced by its own RXR agonistic activity, indicating the potent agonistic activity of the PPARδ-RXR heterodimer.
Diboron-Mediated Rhodium-Catalysed Transfer Hydrogenation of Alkenes and Carbonyls
Lin, Xiao,Wang, Yuhan,Hu, Yan,Zhu, Wanjiang,Dou, Xiaowei
supporting information, p. 1046 - 1049 (2020/02/25)
A diboron-mediated rhodium-catalysed transfer hydrogenation system using water as the hydrogen donor is developed. In addition to a series of alkenes with good functional group tolerance, this rhodium-based catalytic system also effectively reduces aldehydes and ketones. A plausible mechanism involving the RhI-catalysed hydrogen generation and Rh0-catalysed hydrogenation is proposed for the reaction.
Biphenyl compound as well as preparation method and medical application thereof
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Paragraph 1036-1042, (2020/11/22)
The invention discloses a biphenyl compound as well as a preparation method and medical application thereof, the structure of the biphenyl compound is shown as a formula (I) or a formula (II), and thebiphenyl compound or pharmaceutically acceptable salt, tautomer, meso-isomer, raceme, stereoisomer, metabolite, metabolite precursor, prodrug or solvate thereof is a PD-L1 inhibitor. The compound hasa remarkable inhibiting effect on the interaction of PD-1 and PD-L1 protein, so that the compound can be applied to the preparation of PD-L1 inhibitors and immunomodulator drugs for preventing or treating tumors, autoimmune diseases, organ transplant rejection, infectious diseases and inflammatory diseases.
Isoprenoid Biosynthesis Inhibitors Targeting Bacterial Cell Growth
Desai, Janish,Wang, Yang,Wang, Ke,Malwal, Satish R.,Oldfield, Eric
, p. 2205 - 2215 (2016/10/22)
We synthesized potential inhibitors of farnesyl diphosphate synthase (FPPS), undecaprenyl diphosphate synthase (UPPS), or undecaprenyl diphosphate phosphatase (UPPP), and tested them in bacterial cell growth and enzyme inhibition assays. The most active compounds were found to be bisphosphonates with electron-withdrawing aryl-alkyl side chains which inhibited the growth of Gram-negative bacteria (Acinetobacter baumannii, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeruginosa) at ~1–4 μg mL?1levels. They were found to be potent inhibitors of FPPS; cell growth was partially “rescued” by the addition of farnesol or overexpression of FPPS, and there was synergistic activity with known isoprenoid biosynthesis pathway inhibitors. Lipophilic hydroxyalkyl phosphonic acids inhibited UPPS and UPPP at micromolar levels; they were active (~2–6 μg mL?1) against Gram-positive but not Gram-negative organisms, and again exhibited synergistic activity with cell wall biosynthesis inhibitors, but only indifferent effects with other inhibitors. The results are of interest because they describe novel inhibitors of FPPS, UPPS, and UPPP with cell growth inhibitory activities as low as ~1–2 μg mL?1.
3-(5-Amino-6-oxo-1,6-dihydropyridazin-3-yl)-biphenyl derivatives as PDE4 inhibitors
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Page/Page column 26, (2012/01/03)
New pyridazin-3(2H)-one derivatives having the chemical structure of formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of the phosphodiesterase IV (PDE4).
Discovery and optimization of a biphenylacetic acid series of prostaglandin D2 receptor DP2 antagonists with efficacy in a murine model of allergic rhinitis
Scott, Jill M.,Baccei, Christopher,Bain, Gretchen,Broadhead, Alex,Evans, Jilly F.,Fagan, Patrick,Hutchinson, John H.,King, Christopher,Lorrain, Daniel S.,Lee, Catherine,Prasit, Peppi,Prodanovich, Pat,Santini, Angelina,Santini, Brian A.
scheme or table, p. 6608 - 6612 (2011/12/04)
Biphenylacetic acid (5) was identified through a library screen as an inhibitor of the prostaglandin D2 receptor DP2 (CRTH2). Optimization for potency and pharmacokinetic properties led to a series of selective CRTH2 antagonists. Compounds demonstrated potency in a human DP2 binding assay and a human whole blood eosinophil shape change assay, as well as good oral bioavailability in rat and dog, and efficacy in a mouse model of allergic rhinitis following oral dosing.
(3-oxo)pyridazin-4-ylurea derivatives as PDE4 inhibitors
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Page/Page column 54, (2010/07/03)
New (3-oxo)pyridazin-4-ylurea derivatives having the chemcial structure of formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of the phosphodiesterase IV (PDE4).
NOVEL 2-AMINOPYRIMIDINE DERIVATIVES AND THEIR USE
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Page/Page column 49, (2010/11/27)
This invention relates to novel compounds having the structural formula I below and to their pharmaceutically acceptable salts, compositions and methods of use. These novel compounds provide a treatment or prophylaxis of cognitive impairment, Alzheimer Di
SUBSTITUTED AMINO-COMPOUNDS AND USES THEREOF
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Page/Page column 72-73, (2008/06/13)
This invention relates to novel compounds having the structural formula Ia or formula Ib: Ia Ib and their pharmaceutically acceptable salts, tautomers or in vivo hydrolysable precursors, compositions and methods of use thereof. These novel compounds provi
Novel thiophene derivatives, their process of preparation and the pharmaceutical compositions which comprise them
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Page/Page column 21, (2010/11/30)
A compound of formula (I) selected from: wherein: X represents oxygen or sulphur, Y represents oxygen, —NH— or —N(C1-C6)alkyl-, Ra represents hydrogen, halogen, (C1-C3)alkyl, hydroxyl or (C1-C3)alkoxy, Rb represents hydrogen, halogen or (C1-C3)alkyl, A represents phenyl, pyridyl, (C5-C6)cycloalkyl or (C5-C6)cycloalkenyl, R1 and R2 each represent a group selected from hydrogen, halogen, cyano, nitro, haloalkyl, haloalkoxy, alkyl, alkenyl, alkynyl, —OR4, —NR4R5, —S(O)nR4, —C(O)R4, —CO2R4, —O—C(O)R4, —C(O)NR4R5, —NR5—C(O)R4, —NR5—SO2R4, -T-CN, -T-OR4, -T-OCF3, -T- NR4R5, -T-S(O)nR4, -T-C(O)R4, -T-CO2R4, -T-O—C(O)R4, -T-C(O)NR4R5, -T-NR4—C(O)R5, -T-NR4—SO2R5, —R6 and -T-R6 in which n, T, R4, R5 and R6 are as defined in the description, R3 represents an —R7 or —U—R11 group in which R7 represents hydrogen, alkyl, aryl, cycloalkyl or heterocycle, U represents a linear or branched alkylene chain and R11 is defined in the description, their optical isomers or their addition salts with a pharmaceutically acceptable acid or base, and their use as inhibitor of metalloproteinase and more specifically of metalloproteinase-12.
