Synthesis of l-epi-Capreomycidine Derivatives via C–H Amination
摘要:
The L-epi-capreomycidine (Cpm) derivatives were efficiently and stereoselectively synthesized via nitrene C-H insertion starling from a readily available D-Tyr. Design of a substrate that takes into account hydrogen bonding is a critical feature in order to achieve high selectivity. Our synthetic strategy could be a new access to epi-Cpm and its derivatives, which are found in several biologically active natural products.
Synthesis of l-epi-Capreomycidine Derivatives via C–H Amination
摘要:
The L-epi-capreomycidine (Cpm) derivatives were efficiently and stereoselectively synthesized via nitrene C-H insertion starling from a readily available D-Tyr. Design of a substrate that takes into account hydrogen bonding is a critical feature in order to achieve high selectivity. Our synthetic strategy could be a new access to epi-Cpm and its derivatives, which are found in several biologically active natural products.
Novel intermediates for the synthesis of (r)-tamsulosin and of its pharmaceutically acceptable salts and process for their preparation
申请人:Dambrin Valéry
公开号:US20070106079A1
公开(公告)日:2007-05-10
A subject matter of the present invention is novel intermediates for the synthesis of (R)-tamsulosin and of its pharmaceutically acceptable salts, and also the associated preparation process.