Stereoselective Synthesis of Cyclic Ethers by SmI<sub>2</sub>-Induced Reductive Intramolecular Cyclization
作者:Goh Matsuo、Hitomi Kadohama、Tadashi Nakata
DOI:10.1246/cl.2002.148
日期:2002.2
The highly stereoselective syntheses of 2,3-trans-3-hydroxy-tetrahydropyran and oxepane were achieved by the SmI2-induced reductive intramolecularcyclizations from acyclic compounds having an aldehyde and a β-alkoxyacrylate. The syntheses of tetrahydrofuran, oxocane, and oxocene were also accomplished.
Oxidoreductase inhibitors and methods of screening and using thereof
申请人:Balendiran K. Ganesaratnam
公开号:US20050004225A1
公开(公告)日:2005-01-06
The present invention relates to 1) the design and synthesis of analogs to glutathione conjugates which bind to or interact with aldose reductase (AR) through unique conformations that are distinctly different from the substrates and inhibitors of AR which are members of sugar metabolism; 2) the screening of the analogs to identify those that interact with or inhibit or enhance the activity of AR; and 3) the use of AR ligands, AR inhibitors (AR antagonsits) or AR enhancer (AR agonists) in the detection of AR activity, the modulation of AR activity, and the treatment of conditions in a subject in need of modulating AR activity. Such conditions include but not limited to cardiovascular disease, diabetes, artheriosclerosis, cancer, neoplasm, obesity, cataract, retinopathy, keratopathy, nephropathy, neurosis, thrombosis, faulty union of corneal injury and neuropathy. Examples of the treatment include the use of fibrates as AR inhibitors to treat these conditions.
An Atom-Economic and Selective Ruthenium-Catalyzed Redox Isomerization of Propargylic Alcohols. An Efficient Strategy for the Synthesis of Leukotrienes
作者:Barry M. Trost、Robert C. Livingston
DOI:10.1021/ja804105m
日期:2008.9.10
secondary propargylicalcohols in good yields to provide trans enals and enones exclusively. Readily available indenylbis(triphenylphosphine)ruthenium chloride, in the presence of indium triflate and camphorsulfonic acid, gives the best turnover numbers and reactivity with the broadest range of substrates. Deuterium labeling experiments suggest that the process occurs through propargylic hydride migration