Discovery and Optimization of 1,3,4-Trisubstituted-pyrazolone Derivatives as Novel, Potent, and Nonsteroidal Farnesoid X Receptor (FXR) Selective Antagonists
摘要:
LBVS of 12480 in-house compounds, followed by HTRF assay, resulted in one nonsteroidal compound (11) with antagonistic activity against FXR (69.01 +/- 11.75 mu M). On the basis of 11, 26 new derivatives (12a-z) were designed and synthesized accordingly. Five derivatives (12f-g, 12p, 12u, and 12y) showed better antagonistic activities against FXR than compound 11. Remarkably, the most potent derivative, 12u (8.96 +/- 3.62 mu M), showed antagonistic capability approximately 10 times and 8-fold higher than that of the control (GS) and the starting compound 11, respectively. 12u was further confirmed to have high binding affinity with FXR alpha LBD, FXR specificity over six other nuclear receptors, and potent antagonistic activity against FXR in two cell testing platforms. 12u strongly suppressed the regulating effects of CDCA on FXR target genes. The therapeutic potential of 12u was identified by lowering the contents of triglyceride and cholesterol in human hepatoma HepG2 cells and in the cholesterol-fed C57BL/6 mices.
[EN] HETEROCYCLE SUBSTITUTED AMINO-PYRIDINE COMPOUNDS AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS AMINO-PYRIDINE SUBSTITUÉS HÉTÉROCYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:EPIZYME INC
公开号:WO2016044666A1
公开(公告)日:2016-03-24
The present disclosure relates to heterocycle substituted amino-pyridine compounds. The present disclosure also relates to pharmaceutical compositions containing these compounds and methods of treating cancer by administering these compounds and pharmaceutical compositions to subjects in need thereof. The present disclosure also relates to the use of such compounds for research or other non-therapeutic purposes.
An intramolecular N–N bondformation leads to a wide variety of 2‐aryl 1,2,3‐triazoles based on an intramolecular N–N bondformation is described. The reaction likely follows an intramolecular SN2 displacement mechanism with the trimethylammonium moiety serving as a good leaving group for the intramolecular N–N bondformation.
分子内ñ - ñ键的形成导致基于分子内的各种2-芳基-1,2,3-三唑ñ - ñ键的形成进行说明。该反应可能遵循分子内S N 2置换机制,三甲基铵部分是分子内N - N键形成的良好离去基团。
Discovery of naldemedine: A potent and orally available opioid receptor antagonist for treatment of opioid-induced adverse effects
Structure-activity relationship studies of several morphinan derivatives were conducted to obtain dual antagonists for μ- and δ-opioid receptors. We discovered peripherally restricted dual antagonists for μ/δ-opioid receptors as a new chemotype with a morphinan scaffold, which are orally available and do not easily pass the blood–brain barrier. As we expected, some of these compounds inhibit opioid-induced constipation
Molybdenum-Mediated One-Pot Synthesis of Pyrazoles from Isoxazoles
作者:Marine Rey、Stéphane Beaumont
DOI:10.1055/s-0039-1690615
日期:2019.10
with nonsymmetric isoxazoles. By using readily available starting materials, a wide range of substituted pyrazoles may be synthesized by this method. A one-pot approach for the direct synthesis of substituted pyrazoles from isoxazoles is reported. The process involves isoxazole N–O bond cleavage mediated by a molybdenum complex, in situ hydrolysis of the resulting β-amino enone to the corresponding 1,3-diketone