Copper-(II) Catalyzed <i>N</i>
-Formylation and <i>N</i>
-Acylation of Aromatic, Aliphatic, and Heterocyclic Amines and a Preventive Study in the C-N Cross Coupling of Amines with Aryl Halides
作者:Rahul B. Sonawane、Nishant K. Rasal、Dattatraya S. Bhange、Sangeeta V. Jagtap
DOI:10.1002/cctc.201800609
日期:2018.9.7
A Cu‐(II) catalyzed N‐formylation and N‐acylation of amines with moderate to excellent yields, using N, N‐dimethyl formamide (DMF) and N, N‐dimethyl acetamide (DMA) as a formyl and acylating sources in the presence of 1,2,4‐triazole is reported. This novel, highly efficient and simple protocol shows broad substrate scope for aliphatic, aromatic, and heterocyclic amines. In addition, the conditions
Enzymatic Racemization of Amines Catalyzed by Enantiocomplementary ω-Transaminases
作者:Dominik Koszelewski、Barbara Grischek、Silvia M. Glueck、Wolfgang Kroutil、Kurt Faber
DOI:10.1002/chem.201001602
日期:2011.1.3
A strategy for the biocatalytic racemization of primary α‐chiral amines was developed by employing a pair of stereocomplementary PLP‐dependent ω‐transaminases. The interconversion of amine enantiomers proceeded through reversible transamination by a prochiral ketone intermediate, either catalyzed by a pair of stereocomplementary ω‐transaminases or by a single enzyme possessing low stereoselectivity
Local and Tunable n→π* Interactions Regulate Amide Isomerism in the Peptoid Backbone
作者:Benjamin C. Gorske、Brent L. Bastian、Grant D. Geske、Helen E. Blackwell
DOI:10.1021/ja071310l
日期:2007.7.1
We report that n→π* interactions are operative in peptoids and play a major role in controlling amide isomerism. These interactions can be tuned using α-chiral amide side chains known to promote peptoid folding. To our knowledge, this is the first report of n→π* interactions between amides in non-prolyl systems. Furthermore, we have characterized an n→π* interaction between backbone carbonyls and side
The present invention provides, among other things, new benzylamine compounds, compositions comprising benzylamine compounds, methods of making benzylamine compounds, and methods of using benzylamine compounds for treating or preventing a variety of conditions or diseases associated with lipoprotein metabolism.
[1,2,4] Triazolo [1,5, a] pyrimidin-2-ylurea derivative and use thereof
申请人:Masuda Akira
公开号:US20070010515A1
公开(公告)日:2007-01-11
Novel [1,2,4]triazolo[1,5-a]pyrimidine derivative of the general formula (1): (1) its prodrug or a pharmaceutically acceptable salt thereof, which exhibits an antigen presentation inhibiting activity and is useful as a preventive and/or therapeutic agent for immunological rejection and/or graft versus host reaction in organ/bone marrow transplant, autoimmune disease, allergic disease and/or inflammatory disease and also useful as an anticancer drug or as an immunological tolerance inducer for transplanted organ/transplanted bone marrow.