5‐Amino‐2H‐pyran‐3(6H)‐one, 1, a Convenient Intermediate in the Synthesis of Pyran Containing 1,4‐Dihydropyridines
摘要:
5-Amino-2H-pyran-3(6H)-one, 1, is a novel intermediate that is useful in the synthesis of pyran containing dihydropyridines. The synthesis and use of I will be discussed.
Transition-metal-catalyzed reaction of diazocompounds, efficient synthesis of functionalized ethers by carbene insertion into the hydroxylic bond of alcohols
An Efficient catalytic synthesis of unsaturated ethers by carbeneinsertion (with diazoesters as carbene precursors) into the OH bond of unsaturated alcohols is reported. The regioselectivity for the OH insertion is high. However, depending on the catalyst counter-ions and the diazoester alkoxy group, addition to the unsaturated centre can be promoted to some extent, yielding then cyclopropyl and cyclopropenyl
Palladium-catalyzed diastereo-differentiative tandem connection of cis-alkenyl iodide, cyclic fragment, and terminal acetylene was executed. The discrimination of the diastereotopic face and olefinic carbons of norbornene was achieved with accompanying isomerization of the cis-geometry of the olefin to trans in good yields.
Radioligands and their use for identifying potassium channel modulators
申请人:Abbott Laboratories
公开号:US06632418B2
公开(公告)日:2003-10-14
The present invention relates to novel radioligands and test methods using those radioligands in screening compounds.
本发明涉及新型放射性配体和使用这些放射性配体进行筛选化合物的测试方法。
USE OF CONDENSED BENZO[B]THIAZINE DERIVATIVES AS CYTOPROTECTANTS
申请人:ARANDA PHARMA LTD
公开号:US20160106754A1
公开(公告)日:2016-04-21
The present invention relates to arylthiazine compounds, metabolites, N-oxides, amides, esters,pharmaceutically acceptable salts, hydrates and solvates thereof and their use as cytoprotectants in the treatment or prophylaxis of diseases or states, either acute or chronic, involving aberrant cellular lipid peroxidation in the central nervous system or in the periphery of the body. The present invention also relates to a method for their preparation and to pharmaceutical composition comprising as an active ingredient one or more of the aforementioned compounds.