5-Oxo-ETE is the most powerful eosinophil chemoattractant among lipid mediators. Eosinophil infiltration into the lungs of asthmatics may be responsible for the late phase of inflammatory asthma. We have designed and synthesized a 5-oxo-ETE receptor antagonist, the purpose of which is to prevent eosinophil migration to the lung during an asthma attack and thereby reduce asthma symptoms.
Regioselective Synthesis of Indoles via Reductive Annulation of Nitrosoaromatics with Alkynes
作者:Andrea Penoni、Jerome Volkmann、Kenneth M. Nicholas
DOI:10.1021/ol017139e
日期:2002.3.1
[reaction: see text] Indoles are produced regioselectively and in moderate yields by two new processes: (a) from the [CpRu(CO)2]2-catalyzed reaction of nitrosoaromatics (ArNO) with alkynes under carbon monoxide and (b) in a two-step sequence involving the (uncatalyzed) reaction of ArNO with alkynes, followed by reduction of the intermediate adduct.
Aqueous Titanium Trichloride Promoted Reductive Cyclization of
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‐Nitrostyrenes to Indoles: Development and Application to the Synthesis of Rizatriptan and Aspidospermidine
TiCl3 solution at room temperature afforded indoles through a formal reductive C(sp2)–H amination process. A range of functions such as halides (Cl, Br), carbonyl (ester, carbamate), cyano, hydroxy, and amino groups were tolerated. From β,β‐disubstituted o‐nitrostyrenes, 2,3‐disubstituted indoles were formed by a domino reduction/cyclization/migration process. Mild conditions, simple experimental procedure
Lend me your hydrogen! The first transition‐metal‐catalyzed alkylations of indoles with aliphatic amines proceeding under transfer hydrogenation conditions are developed (see scheme). This reaction is based on the borrowing hydrogen methodology.
General and Selective C-3 Alkylation of Indoles with Primary Alcohols by a Reusable Pt Nanocluster Catalyst
作者:S. M. A. Hakim Siddiki、Kenichi Kon、Ken-ichi Shimizu
DOI:10.1002/chem.201302464
日期:2013.10.18
The platinum rule: Heterogeneous, additive‐free C‐3 selectivealkylation of indoles by aliphatic and aromatic alcohols proceeded under transfer hydrogenation conditions with the reusablePt/θ‐Al2O3 catalyst (see scheme; TON=turnover number).
铂规则:异构,通过转移氢化的条件下进行与可重复使用的Pt /θ-Al系的脂肪族和芳族醇吲哚不含添加剂的C-3选择性烷基化2 ö 3催化剂(参见方案; TON =周转数)。
[EN] 5-OXO-ETE RECEPTOR ANTAGONIST COMPOUNDS<br/>[FR] COMPOSÉS ANTAGONISTES DES RÉCEPTEURS 5-OXO-ETE
申请人:UNIV MCGILL
公开号:WO2010127452A1
公开(公告)日:2010-11-11
The present invention relates to novel pharmaceutically-useful compounds which are antagonists of the 5-oxo-ETE receptors, such as the OXE receptor. These compounds have use as therapeutic and/or prophylactic agents for diseases characterized by tissue eosinophilia, such as inflammatory conditions including respiratory diseases. The invention also relates to pharmaceutical compositions, to the use of such compounds and compositions as medicaments, and to therapeutic methods.