Diisopropyloxy(η2-cyclopentene)titanium for the diastereoselective synthesis of various 1,2-disubstituted cyclopentanes
摘要:
The reaction of 3 equiv of cyclopentylmagnesium chloride with 2 equiv of titanium(IV) isopropoxide at low temperature (-70 to -50 degrees C) leads to the formation of 1 equiv of diisopropyloxy(eta(2)-cyclopentene)titanium containing low amounts of the starting Grignard reagent. The sequential addition of two electrophiles onto this titanium complex involved as an intermediate in Kulinkovich-type reactions delivers various 1,2-disubstituted cyclopentane rings with generally high diastereoselectivity. Mechanistic considerations and possible extensions of this method are discussed. (c) 2006 Elsevier Ltd. All rights reserved.
Oxidative rearrangements of arylalkenes with [hydroxy(tosyloxy)iodo]benzene in 95% methanol: a general, regiospecific synthesis of α-aryl ketones
作者:Michael W. Justik、Gerald F. Koser
DOI:10.1016/j.tetlet.2004.06.029
日期:2004.8
The treatment of arylalkenes with [hydroxy(tosyloxy)iodo]benzene in 95% methanol affords the corresponding α-aryl ketones. This oxidative rearrangement is general for acyclic and cyclic arylalkenes and permits regioselective syntheses of isomeric α-phenyl ketone pairs.
[EN] NOVEL DIHYDROPYRIMIDIN-2(1H)-ONE COMPOUNDS AS S-NITROSOGLUTATHIONE REDUCTASE INHIBITORS<br/>[FR] NOUVEAUX COMPOSÉS DIHYDROPYRIMIDINE-2(1H)-ONES EN TANT QU'INHIBITEURS DE LA S-NITROSOGLUTATHION RÉDUCTASE
申请人:N30 PHARMACEUTICALS LLC
公开号:WO2011038204A1
公开(公告)日:2011-03-31
The present invention is directed to novel dihydropyrimidin-2(1H)-one compounds useful as S-nitrosoglutathione reductase (GSNOR) inhibitors, pharmaceutical compositions comprising such compounds, and methods of making and using the same.
Compounds of the formula
or a pharmaceutically acceptable salt thereof or a tautomer thereof, wherein A and B are as described herein, are useful for treating conditions afflicting mammals.
该公式化合物或其药用盐或其互变异构体,其中A和B如本文所述,可用于治疗影响哺乳动物的疾病。
METALLO-BETA-LACTAMASE INHIBITORS
申请人:Chikauchi Ken
公开号:US20120071457A1
公开(公告)日:2012-03-22
A new metallo-β-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of β-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-β-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of β-lactam antibiotics against metallo-β-lactamase producing bacteria by combining the compound of the general formula (I) with β-lactam antibiotics.
Novel Dihydropyrimidin-2(1H)-one Compounds as S-Nitrosoglutathione Reductase Inhibitors
申请人:Sun Xicheng
公开号:US20120208817A1
公开(公告)日:2012-08-16
The present invention is directed to novel dihydropyrimidin-2(1H)-one compounds useful as S-nitrosoglutathione reductase (GSNOR) inhibitors, pharmaceutical compositions comprising such compounds, and methods of making and using the same.