The N-heterocycliccarbene-catalyzed radical relay enables the vicinal alkylacylation of styrenes, acrylates and acrylo-nitrile using aldehydes and tertiary alkyl carboxylic acid-derived redox-active esters. This protocol introduces tertiary alkyl groups and acyl groups to C-C double bonds with complete regioselectivity to produce functionalized ketone derivatives. The radical relay mechanism involves
N-杂环卡宾催化的自由基中继能够使用醛和叔烷基羧酸衍生的氧化还原活性酯对苯乙烯、丙烯酸酯和丙烯腈进行邻位烷基酰化。该协议将叔烷基和酰基引入 CC 双键,具有完全的区域选择性,以产生功能化的酮衍生物。自由基中继机制涉及从 Breslow 中间体的烯醇化物形式的单电子转移和所得烷基自由基与烯烃的自由基加成,然后是自由基 - 自由基偶联。
Piperidine derivatives and their use as anti-inflammatory agents
申请人:Arnaiz O. Damian
公开号:US20060167044A1
公开(公告)日:2006-07-27
Piperidine derivatives of the following formulae I and II:
and their pharmaceutically acceptable salts, which are functional antagonists of the CC chemokine receptor CCR1 and are thus useful as anti-inflammatory agents, a pharmaceutical compositions containing said piperidine derivatives or their pharmaceutically acceptable salts, and methods of their use.
[EN] NOVEL HETEROAROMATIC PIPERAZINES FOR USE AS DRUGS<br/>[FR] NOUVELLES PIPERAZINES HETEROAROMATIQUES UTILES COMME MEDICAMENTS
申请人:PIERRE FABRE MEDICAMENT
公开号:WO1996041802A1
公开(公告)日:1996-12-27
(EN) Novel piperazines derived from 1-hetero-indenes, a method for preparing same, pharmaceutical or therapeutical compositions containing such compounds, and their use as drugs, are disclosed.(FR) La présente invention se rapporte à de nouvelles pipérazines dérivées des 1-hétéro-indènes, ainsi qu'à leur procédé de préparation, les compositions pharmaceutiques ou thérapeutiques les contenant et leur utilisation comme médicaments.