Preparation of quinoline-substituted carbonate and carbamate derivatives
申请人:——
公开号:US20020013468A1
公开(公告)日:2002-01-31
The invention relates to a process for preparing quinoline-substituted carbonate and carbamate compounds, which are important intermediates in the synthesis of 6-O-substituted macrolide antibiotics. The process employs metal-catalyzed coupling reactions to provide a carbonate or carbamate of formula (I) or (II) or a substrate that can be reduced to obtain the same.
Heterocyclic anti-epileptogenic agents and methods of use thereof
申请人:Weaver F. Donald
公开号:US20060014752A1
公开(公告)日:2006-01-19
Methods and compounds, such as β-heterocyclic-β-amino acids, useful for the inhibition of epileptogenesis are disclosed. Methods for preparing and using the β-heterocyclic-β-amino acids of the invention are also described.
Convergent synthesis of dihydroquinolones from o-aminoarylboronates
作者:Joachim Horn、Ho Yin Li、Stephen P. Marsden、Adam Nelson、Rachel J. Shearer、Amanda J. Campbell、David House、Gordon G. Weingarten
DOI:10.1016/j.tet.2009.06.103
日期:2009.10
An efficient and convergent one-step synthesis of substituted dihydroquinolin-2-ones from alpha,beta-unsaturated esters and aminoaryl pinacolboronates under rhodium catalysis is reported. The reaction is easily applicable in parallel synthesis format and provides convenient access to this pharmaceutically-relevant motif. (C) 2009 Elsevier Ltd. All rights reserved.
From Fragment Screening to In Vivo Efficacy: Optimization of a Series of 2-Aminoquinolines as Potent Inhibitors of Beta-Site Amyloid Precursor Protein Cleaving Enzyme 1 (BACE1)
作者:Yuan Cheng、Ted C. Judd、Michael D. Bartberger、James Brown、Kui Chen、Robert T. Fremeau、Dean Hickman、Stephen A. Hitchcock、Brad Jordan、Vivian Li、Patricia Lopez、Steven W. Louie、Yi Luo、Klaus Michelsen、Thomas Nixey、Timothy S. Powers、Claire Rattan、E. Allen Sickmier、David J. St. Jean、Robert C. Wahl、Paul H. Wen、Stephen Wood
DOI:10.1021/jm200544q
日期:2011.8.25
Using fragment-based screening of a focused fragment library, 2-aminoquinoline I was identified as an initial hit for BACE1. Further SAR development was supported by X-ray structures of BACE1 cocrystallized with various ligands and molecular modeling studies to expedite the discovery of potent compounds. These strategies enabled us to integrate the C-3 side chain on 2-aminoquinoline 1 extending deep into the P2' binding pocket of BACE1 and enhancing the ligand's potency. We were able to improve the BACE1 potency to subnanomolar range, over 10(6)-fold more potent than the initial hit (900 mu M). Further elaboration of the physical properties of the lead compounds to those more consistent with good blood-brain barrier permeability led to inhibitors with greatly improved cellular activity and permeability. Compound 59 showed an IC50 value of 11 nM on BACE1 and cellular activity of 80 nM, This compound was advanced into rat pharmacokinetic and pharmacodynamic studies and demonstrated significant reduction of A beta levels in cerebrospinal fluid (CSF).