Modular Synthesis of 1,2-Diamine Derivatives by Palladium-Catalyzed Aerobic Oxidative Cyclization of Allylic Sulfamides
作者:Richard I. McDonald、Shannon S. Stahl
DOI:10.1002/anie.200906342
日期:——
Allylic sulfamides undergo aerobic oxidativecyclization at room temperature, mediated by a Pd(O2CCF3)2/DMSO catalyst system in tetrahydrofuran. The cyclic sulfamide products are readily converted into 1,2‐diamines, and substrates derived from chiral allylic amines cyclize with very high diastereoselectivity.
Stereocontrolled Synthesis of Bicyclic Sulfamides via Pd-Catalyzed Alkene Carboamination Reactions. Control of 1,3-Asymmetric Induction by Manipulating Mechanistic Pathways
作者:Nicholas R. Babij、Grace M. McKenna、Ryan M. Fornwald、John P. Wolfe
DOI:10.1021/ol5015976
日期:2014.6.20
A new annulation strategy for the synthesis of trans-bicyclic sulfamides is described. The Pd-catalyzed alkene carboamination reactions of 2-allyl and cis-2,5-diallyl pyrrolidinyl sulfamides with aryl and alkenyl triflates afford the fused bicyclic compounds in good yields and with good diastereoselectivity (up to 13:1 dr). Importantly, by employing reaction conditions that favor an anti-aminopalladation
The synthesis of a new series of N-substituted perhydro-1,3-oxazin-2ones containing N-phenylsulfonamide is described. The compounds 7a-7f were obtained in a one-pot reaction from chlorosulfonyl isocyanate, selected 1,3-halogenoalcohols and various aromatic amines in alkaline conditions, to give the target N-heterocyclic 6-membered ring compounds with good yields. The X-ray crystal structure of N-[(N-4-fluorophenyl)sulfamoyl]perhydro-1,3-oxazin-2-one 7d was solved. All the synthesized compounds have been screened for their in-vitro antibacterial activity against Staphylococcus aureus, Eseherichia coli and Pseudomonas aeruginosa. Structures of 7d and 6e can be further optimized to give new potent antibacterial agents with structures significantly different from those of existing classes of antibiotics.
[EN] MODULATORS OF MULTIPLE KINASES<br/>[FR] MODULATEURS DE KINASES MULTIPLES
申请人:EMILIEM INC
公开号:WO2008042867A2
公开(公告)日:2008-04-10
[EN] Compound structures are provided which should modulate various selected kinases thereby regulating the corresponding kinase signal pathways. These pathways have been shown to regulate biological functions. The compounds, and similar variants, will be useful in therapeutic or diagnostic methods related to said kinases. In particular, improved effects on functional pathways mediated by kinases can be achieved by modulating selected combinations of kinases. [FR] L'invention concerne des structures de composés destinées à moduler diverses kinases sélectionnées par la régulation des voies de signalisation de kinases correspondantes. Ces voies sont aptes à réguler des fonctions biologiques. Ces composés, et des variants similaires, peuvent être utiles dans des méthodes thérapeutiques ou diagnostiques liées à ces kinases. La présente invention permet en particulier d'améliorer les effets sur les voies fonctionnelles à médiation de kinases, par la modulation de combinaisons choisies de kinases.