A Scalable and Regioselective Synthesis of 2-Difluoromethyl Pyridines from Commodity Chemicals
作者:Jean-Nicolas Desrosiers、Christopher B. Kelly、Daniel R. Fandrick、Larry Nummy、Scot J. Campbell、Xudong Wei、Max Sarvestani、Heewon Lee、Alexander Sienkiewicz、Sanjit Sanyal、Xingzhong Zeng、Nelu Grinberg、Shengli Ma、Jinhua J. Song、Chris H. Senanayake
DOI:10.1021/ol500402e
日期:2014.3.21
novo synthesis of difluoromethyl pyridines from inexpensive materials is reported. The pyridyl subunit is built around the difluoromethyl group rather than a late stage introduction of this moiety. This user-friendly approach allows access to a diverse range of substitution patterns on all positions on the ringsystem and on the difluoromethyl group.
A series of 2-amino-[1,8]-naphthyridine-3-carboxamides (ANCs) with potent inhibition of bacterial NAD+-dependent DNA ligases (LigAs) evolved from a 2,4-diaminopteridine derivative discovered by HTS. The design was guided by several highly resolved X-ray structures of our inhibitors in complex with either Streptococcus pneumoniae or Escherichia coli LigA. The structure-activity-relationship based on the ANC scaffold is discussed. The in-depth characterization of 2-amino-6-bromo-7-(trifluoromethyl)-[1,8]-naphthyridine-3-carboxamide, which displayed promising in vitro (MIC Staphylococcus aureus 1 mg/L) and in vivo anti-staphylococcal activity, is presented. (C) 2012 Elsevier Ltd. All rights reserved.
Synthese von α-diazo-carbonylverbindungen durch entformylierende diazogruppenübertragung
作者:Manfred Regitz、Felix Menz、Jörn Rüter
DOI:10.1016/s0040-4039(00)90585-9
日期:1967.1
Mesogenic Enaminoketone Ni(II) Complexes of Phenazine and Quinoxaline Derivatives
The new Ni(II) metallomesogenes were synthesized. Their mesogenic cores are constructed from tetradental enaminoketone unit connected to 1,2: 3,4-di(4,5-dioctyloxybenzo) phenazine or 2,3-di(3,4-dioctyloxyphenylo) quinoxaline. The described compounds form columnar hexagonal phase (Col(hd)) in very broad temperature range. The high stability of the columnar phase results from presence of a permanent dipol moment in enaminoketone moieties created by strong electron withdrawing properties of carbonyl groups.
[EN] HETEROARYL COMPOUNDS FOR THE TREATMENT OF PAIN<br/>[FR] COMPOSÉS HÉTÉROARYLES POUR LE TRAITEMENT DE LA DOULEUR
申请人:[en]VERTEX PHARMACEUTICALS INCORPORATED
公开号:WO2023205465A1
公开(公告)日:2023-10-26
Compounds, and pharmaceutically acceptable salts thereof, useful as inhibitors of sodium channels are provided. Also provided are pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts and methods of using the compounds, pharmaceutically acceptable salts, and pharmaceutical compositions in the treatment of various disorders, including pain.