[EN] HISTAMINE H3 RECEPTOR AGENTS, PREPARATION AND THERAPEUTIC USES<br/>[FR] AGENTS RECEPTEURS DE L'HISTAMINE H3, PREPARATION ET UTILISATIONS THERAPEUTIQUES
申请人:LILLY CO ELI
公开号:WO2005097740A1
公开(公告)日:2005-10-20
The present invention discloses novel compounds of Formula (I) or pharmaceutically acceptable salts thereof, which have histamine-H3 receptor antagonist or inverse agonist activity, as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising compounds of Formula (I) as well as methods of using them to treat obesity, cognitive deficiencies, narcolepsy, and other histamine H3 receptor-related diseases
HISTAMINE H3 RECEPTOR AGENTS, PREPARATION AND THERAPEUTIC USES
申请人:Beavers Lisa Selsam
公开号:US20100048580A1
公开(公告)日:2010-02-25
The present invention discloses novel compounds of Formula (I) or pharmaceutically acceptable salts thereof, which have histamine-H3 receptor antagonist or inverse agonist activity, as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising compounds of Formula (I) as well as methods of using them to treat obesity, cognitive deficiencies, narcolepsy, and other histamine H3 receptor-related diseases
An efficient method to prepare amides by a cascade strategy was developed. Using nBu4NI or NaI as the catalyst and tert-butyl hydroperoxide as the oxidant, various alcohols reacted with N-hydroxysuccinimide or N-hydroxyphthalimide affording corresponding active esters in moderate to good yield. The resulting active esters were converted into amides smoothly in one pot.
开发了一种通过级联策略制备酰胺的有效方法。使用n Bu 4 NI或NaI作为催化剂,氢过氧化叔丁基作为氧化剂,各种醇与N-羟基琥珀酰亚胺或N-羟基邻苯二甲酰亚胺反应,以中等至良好的产率提供相应的活性酯。在一锅中将所得的活性酯平稳地转化为酰胺。
<i>N</i>-Heterocyclic carbene (NHC) catalyzed amidation of aldehydes with amines <i>via</i> the tandem <i>N</i>-hydroxysuccinimide ester formation
作者:Ashmita Singh、A. K. Narula
DOI:10.1039/d1nj00591j
日期:——
A facile method for the amidation of aldehydes by a cascade approach was developed. This methodology, reported for the first time, uses a N-heterocycliccarbene (NHC) as the catalyst, and N-hydroxysuccinimide (NHS) mediated synthesis of amides utilising TBHP as the oxidant. Various substituted aldehydes reacted smoothly with NHS giving the corresponding active esters in moderate to good yields, which
Iron-Nitrate-Catalyzed Oxidative Esterification of Aldehydes and Alcohols with <i>N</i>
-Hydroxyphthalimide: Efficient Synthesis of <i>N</i>
-Hydroxyimide Esters
An Fe(NO3)3*9H2O-catalyzed cross-dehydrogenative coupling reaction between N-hydroxyphthalimide (NHPI) or N-hydroxysuccinimide (NHSI) and aldehydes or alcohols in the air has been described. This transformation provided an efficientapproach to prepare N-hydroxyimide ester derivatives with wide substrate scope in moderate to excellent yields.