This invention relates to the use of 2-substituted-1-acyl-1,2-dihydroquinoline derivatives to increase high density lipoprotein cholesterol (HDL-C) concentration and as therapeutic compositions for treating atherosclerotic conditions such as dyslipoproteinamias and coronary heart disease.
Chemo-, regio-, and stereoselectivity have been achieved in the oxidations of aryl olefins. The aryl olefins were oxidized by 2 equivalents of H2O2 in acetic acid, catalyzed by 0.02 equivalent of RuCl3, leading to the formations of syn-aryl glycol monoesters. As the reaction is concerted, both the regio- and stereoselectivity are excellent. In the presence of aliphatic C=C bonds, the aryl C=C bonds were selectively dioxygenated. This represents the first example of chemoselective dioxygenation of aryl C=C bonds.
Mechanism of the Acid-catalyzed Hydrolysis of Reissert Compounds
作者:R. Lynn Cobb、William E. McEwen
DOI:10.1021/ja01624a031
日期:1955.10
US5939435A
申请人:——
公开号:US5939435A
公开(公告)日:1999-08-17
Remote Control of the C-3-C-4 Double-Bond Epoxidation of a Chiral 1,2-Dihydroquinoline: Application to the Synthesis of (-)-(R)-Sumanirole (PNU-95666E)
synthetic approach, using a chiral Reissert adduct, was too problematic to be pursued further. In the second successful approach, the authors took advantage of the stereoselective epoxidation of a 1,2-dihydroquinoline bearing an Evans' chiral auxiliary at N-1.