Efficient Asymmetric Oxidation of Sulfides and Kinetic Resolution of Sulfoxides Catalyzed by a Vanadium−Salan System
作者:Jiangtao Sun、Chengjian Zhu、Zhenya Dai、Minghua Yang、Yi Pan、Hongwen Hu
DOI:10.1021/jo040221d
日期:2004.11.1
The asymmetricoxidation of sulfides to chiral sulfoxides with hydrogen peroxide in good yield and high enantioselectivity has been catalyzed very effectively by chiral vanadium−salan [N,N‘-alkyl bis(salicylamine)] complex. The salan ligand shows results superior in terms of reactivity and enantioselectivity to those of salen [N,N‘-alkylene bis(salicylideneimine)] analogue, and provides the sulfoxide
Carbon–sulphur bond cleavage in the reaction of benzyl and t-butyl sulphoxides with N-halogenosuccinimides
作者:F. Jung、T. Durst
DOI:10.1039/c39730000004
日期:——
Benzyl and t-butyl alkyl or aryl sulphoxides react with NBS or NCS in CHCI3–ethanol (1%) at 25° to give benzyl or t-butyl halides and ethyl esters of alkyl or aryl sulphinic acids.
Carbon-Sulfur Bond Cleavage in the Reaction of Alkyllithiums with Sulfoxides
作者:T. Durst、M. J. LeBelle、Rita Van den Elzen、K.-C. Tin
DOI:10.1139/v74-119
日期:1974.3.1
When sulfoxides are reacted with alkyllithiums two competing reactions can occur: (i) abstraction of an α-hydrogen to give an α-lithiosulfoxide and (ii) carbon–sulfurbondcleavage according to R1S...
Stereoselective conjugate additions of sulphoxide stabilised carbanions to α,β-unsaturated esters
作者:M. Casey、A.C. Manage、L. Nezhat
DOI:10.1016/s0040-4039(00)82202-9
日期:1988.1
The reaction of lithiated alkyl t-butyl sulphoxides with α,β-unsaturated esters gives conjugateaddition products in good yield, with high stereoselectivity.
锂化烷基叔丁基亚砜与α,β-不饱和酯的反应以高收率和高立体选择性提供了共轭加成产物。
FACTOR XA INHIBITORS
申请人:Zhu Bing-Yan
公开号:US20120178733A1
公开(公告)日:2012-07-12
The present invention is directed to compounds represented by Formula I and pharmaceutically acceptable salts, solvates, hydrates, and prodrugs thereof which are inhibitors of Factor Xa. The present invention is also directed to and intermediates used in making such compounds, pharmaceutical compositions containing such compounds, methods to prevent or treat a number of conditions characterized by undesired thrombosis and methods of inhibiting the coagulation of a blood sample.