An improved amide coupling procedure for the synthesis of N-(pyridin-2-yl)amides
作者:Allyn T. Londregan、Gregory Storer、Ceshea Wooten、Xiaojing Yang、Joseph Warmus
DOI:10.1016/j.tetlet.2009.02.071
日期:2009.4
Dehydrative amide couplings with 2-pyridylamines suffer from variable yields. A mild and high-yielding synthesis of N-(pyridin-2-yl)amides employing 2-aminopyridine-N-oxides is presented as a solution.
[EN] SOLID FORMS OF LUMACAFTOR, ITS SALTS AND PROCESSES THEREOF<br/>[FR] FORMES SOLIDES DE LUMACAFTOR ET DE SES SELS, ET PROCÉDÉS ASSOCIÉS
申请人:DR REDDY’S LABORATORIES LTD
公开号:WO2017175161A1
公开(公告)日:2017-10-12
Aspects of the present application relate to solid forms of Lumacaftor, its salts and processes thereof. Specific aspects of the present application relate to alternate processes for the preparation of Lumacaftor and intermediates thereof. Present application further relates to the solid forms of Lumacaftor and its salts.
Diversity of Reactions of Isomeric Aminopyridine<i>N</i>-Oxides with Chloronitropyridines: An Experimental and Theoretical Study
作者:Ewa Wolińska、Wiesław Pucko
DOI:10.1002/jhet.1536
日期:2013.5
Reaction of 2‐aminopyridine N‐oxides 1a, 1b, 1c, 1d with chloronitropyridine 7a gave 2‐[(pyridin‐2‐yl)amino]pyridine N‐oxides 8a, 8b, 8c and 9 in good yield. The reactions of 4‐ and 3‐aminopyridine N‐oxides 12a,12b and 24 with 7a, 7b, 7c proceed in the different manner involving initial formation of the intermediary 1‐pyridyloxypyridinium salts 13a, 13b, 13c, 13d and 26, which rearrange to 4‐[(5‐n
Sequential amination of heteroaromatic halides with aminopyridine 1 - oxides and their <i>N</i>-protected derivatives based on novel aza-Smiles rearrangement
作者:Ewa Wolińska
DOI:10.1515/hc-2012-0139
日期:2012.12.1
Abstract The SNAr and Pd-catalyzed amination of chloro derivatives of azines, diazines, and triazines with 2-aminopyridine 1-oxides and their N-protected derivatives was described.
COMPOSITIONS AND METHODS FOR INHIBITION OF THE JAK PATHWAY
申请人:Argade Ankush
公开号:US20080221089A1
公开(公告)日:2008-09-11
The invention encompasses compounds having formula I and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, are therapeutically useful.