Facile and Inexpensive Synthesis of 4-Oxoalkanoic Acids from Primary Nitroalkanes and Acrolein
作者:Roberto Ballini、Marino Petrini
DOI:10.1055/s-1986-31858
日期:——
4-Oxoalkanoic acids, useful organic compounds, are easily prepared by conjugate addition of primary aliphatic nitro compounds to acrolein on alumina surface, in the absence of a solvent, and subsequent oxidation with hydrogen peroxide/potassium carbonate.
Heterobicyclic and tricyclic nitric oxide synthase inhibitors
申请人:——
公开号:US20010044539A1
公开(公告)日:2001-11-22
The current invention discloses useful bicyclic and tricyclic amidino derivative compounds, pharmaceutical compositions containing these novel compounds, and to their use as nitric oxide synthase inhibitors.
Enantioselective Synthesis of Bicyclo[4.4.1]undecane-2,7-dione via Samarium(II)-Mediated Fragmentation of a Cyclopropane Precursor
作者:Hans-Günther Schmalz、Sherif El Sheikh、Nina Kausch、J. Lex、J.-M. Neudörfl
DOI:10.1055/s-2006-941599
日期:2006.6
An efficient six-step synthesis of bicyclo[4.4.1]undecane-2,7-dione was elaborated. Key steps include an enantioselective oxazaborolidine-catalyzed borane reduction (CBS reduction) of 2,3,4,6,7,8-hexahydronaphthalene-1,5-dione to the corresponding diol, and a subsequent (syn-diastereoselective) cyclopropanation. Oxidation then gives tricyclo[4.4.1.0 1,6 ]undecane-2,7-dione (>99% ee) which on treatment
Pyrrolo[1,2-b][1,2,4]oxadiazine diones useful as nitric oxide synthase inhibitors
申请人:——
公开号:US20040019019A1
公开(公告)日:2004-01-29
The current invention discloses useful bicyclic and tricyclic amidino derivative compounds, pharmaceutical compositions containing these novel compounds, and to their use as nitric oxide synthase inhibitors.