An acyl-Claisen/Paal-Knorr approach to fully substituted pyrroles
作者:Nora Dittrich、Eun-Kyung Jung、Samuel J. Davidson、David Barker
DOI:10.1016/j.tet.2016.06.049
日期:2016.8
The synthesis of fully substituted pyrroles using the Paal-Knorr reaction on acyl-Claisen derived 2,3-syn-disubstituted-1,4-diketones is reported. The use of the acyl-Claisen rearrangement allows the synthesis of wide variety of syn-substituted 1,4-diketones which are shown to be better substrates for pyrrole condensation than their corresponding anti isomers. When the reaction was performed open to
Cyclic nucleotide phosphodiesterase inhibitors, preparation and uses
申请人:Bourguignon Jean-Jacques
公开号:US20060128695A1
公开(公告)日:2006-06-15
The invention concerns the use of PDE2 inhibitors for treating disorders of the central and peripheral nervous system, a method for therapeutic treatment by administering to an animal said inhibitors. More specifically, the invention concerns novel benzodiazepinone derivatives and their uses in therapeutics more particularly for treating pathologies involving activity of a cyclic nucleotide phosphodiesterase type 2. The invention also concerns methods for preparing same and novel synthesis intermediates.