Surface-Mediated Reactions. 9. Selective Oxidation of Primary and Secondary Amines to Hydroxylamines<sup>1</sup>
作者:John D. Fields、Paul J. Kropp
DOI:10.1021/jo0002083
日期:2000.9.1
OXONE over silica gel or, in some cases, alumina has been found to oxidize the primary and secondaryamines 3 selectively to the corresponding hydroxylamines 4, in either the presence or absence of a solvent. Treatment of Boc-protected L-lysine (6) under the latter conditions afforded hydroxylamine 7 in excellent yield. The trialkylamine 1a and pyridine (1b), in which selectivity is not an issue, were
Disclosed are furan nitrone compounds and pharmaceutical compositions containing such compounds. The disclosed compounds are useful as analytical reagents for detecting free radicals and as therapeutics for treating a wide variety of medical dysfunctions and diseases.
.alpha.-aryl-N-alkylnitrones and pharmaceutical compositions containing
申请人:Centaur Pharmaceuticals, Inc.
公开号:US06046232A1
公开(公告)日:2000-04-04
Disclosed are novel .alpha.-aryl-N-alkylnitrone compounds and pharmaceutical compositions containing such compounds. The disclosed compositions are useful as therapeutics for preventing and/or treating neurodegenerative, autoimmune and inflammatory conditions in mammals and as analytical reagents for detecting free radicals.
The invention provides pharmaceutical compositions comprising primary N-hydroxylamines and related therapeutic, prophylactic, diagnostic and screening methods. The pharmaceutical compositions generally comprise a pharmaceutical composition comprising an orally administrable effective unit solid dosage of a primary N-hydroxylamine or a pharmaceutically acceptable salt thereof and substantially free of a nitrone corresponding to the hydroxylamine.
Alpha-aryl-N-alkylnitrones and pharmaceutical compositions containing the same
申请人:Kelleher A. Judith
公开号:US20050124691A1
公开(公告)日:2005-06-09
Disclosed are novel α-aryl-N-alkylnitrone compounds and pharmaceutical compositions containing such compounds. The disclosed compositions are useful as therapeutics for preventing and/or treating neurodegenerative, autoimmune and inflammatory conditions in mammals and as analytical reagents for detecting free radicals.