Practical and Cost-Effective Manufacturing Route for the Synthesis of a β-Lactamase Inhibitor
摘要:
Compound 1, a potent and irreversible inhibitor of beta-lactamases, is in clinical trials with beta-lactam antibiotics for the treatment of serious and antibiotic-resistant bacterial infections. A short, scalable, and cost-effective route for the production of this densely functionalized polycyclic molecule is described.
Synthesis and SAR of novel, 4-(phenylsulfamoyl)phenylacetamide mGlu4 positive allosteric modulators (PAMs) identified by functional high-throughput screening (HTS)
作者:Darren W. Engers、Patrick R. Gentry、Richard Williams、Julie D. Bolinger、C. David Weaver、Usha N. Menon、P. Jeffrey Conn、Craig W. Lindsley、Colleen M. Niswender、Corey R. Hopkins
DOI:10.1016/j.bmcl.2010.07.007
日期:2010.9
Herein we disclose the synthesis and SAR of a series of 4-(phenylsulfamoyl)phenylacetamide compounds as mGlu4 positive allosteric modulators (PAMs) that were identified via a functional HTS. An iterative parallel approach to these compounds culminated in the discovery of VU0364439 (11) which represents the most potent (19.8 nM) mGlu4 PAM reported to date.
A unique combination of copper iodide and cesium acetate was found to mediate intramolecular amination of arylhalides under mild conditions. The reaction proceeds at room temperature with primary or N-benzyl amines and at moderately elevated temperatures with other amine derivatives. The reaction has been applied to the formation of 5-, 6-, and 7-membered rings. Remarkably, halogens at the meta-position
A Pd‐catalyzed efficient reductive cross‐coupling reaction without metallic reductant to construct a Csp2Csp3 bond has been reported. A PdIV complex was proposed to be a key intermediate, which subsequently went through double oxidative addition and double reductive elimination to produce the cross‐coupling products by involving Pd0/II/IV in one transformation. The oxidative addition from PdII to
Compound 1, a potent and irreversible inhibitor of beta-lactamases, is in clinical trials with beta-lactam antibiotics for the treatment of serious and antibiotic-resistant bacterial infections. A short, scalable, and cost-effective route for the production of this densely functionalized polycyclic molecule is described.