Pyrazole[3,4-e][1,4]thiazepin-7-one derivatives as a novel class of Farnesoid X Receptor (FXR) agonists
摘要:
A virtual screening procedure was applied to the discovery of structurally diverse non-steroidal Farnesoid X Receptor (FXR) agonists. From 117 compounds selected by virtual screening, a total of 47 compounds were found to be FXR agonists, with 34 of them showing activity below a concentration of 20 mu M. 1H-Pyrazole[3,4-e][1,4]thiazepin-7-one-based hit compound 7 was chosen for hit-to-lead optimization. A large number of 1H-pyrazole[3,4-e][1,4]thiazepin-7-one derivatives was designed, synthesized, and evaluated by a cell-based luciferase transactivation assay for their agonistic activity against FXR. Most of them exhibited low micromolar range of potency and very high efficacy. (C) 2012 Elsevier Ltd. All rights reserved.
An efficient synthetic approach to synthesize N-aryl-5-aminopyrazoles from anilines via a one-pot, telescoped reaction performed in entirely aqueous conditions has been developed. This protocol provides a rapid, convenient method to prepare N-aryl-5-aminopyrazoles, useful building blocks for the synthesis of several bicyclic nitrogen heterocycles, by avoiding the isolation of the toxic intermediate arylhydrazines and the use of a metallic reductant.
PYRAZOLOPYRIMIDINE JAK INHIBITOR COMPOUNDS AND METHODS
申请人:Genentech, Inc.
公开号:US20140107099A1
公开(公告)日:2014-04-17
The invention provides JAK kinase inhibitors of Formula Ia, enantiomers, diasteriomers or pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
7
and Z are defined herein, a pharmaceutical composition that includes a compound of Formula Ia and a pharmaceutically acceptable carrier, adjuvant or vehicle, and methods of treating or lessening the severity of a disease or condition responsive to the inhibition of a JAK kinase activity in a patient.
complex through a halogen bond or π–π interaction based on various halogenated pyrazolamines, depending on the HOMO–LUMO energy gap of the C–X bond. The reaction of halogenated pyrazol-5-amines with thiophenol derivatives proceeded in good to excellent yields. The formation of a π–π complex or halogen bonding between the halopyrazolamine and the thiolate anion was confirmed by UV/visible spectroscopy.