Intramolecular Addition of Stabilized Enolates to (η6-Arene)ruthenium Complexes: Synthesis of Ru-Coordinated Azaspirocycles
摘要:
[GRAPHICS]Stabilized enolates attached to, cationic (arene)(RuCp)-Cp-II complexes via an amide linkage were found to participate in nucleophilic aromatic addition reactions resulting in the formation of novel cyclohexadienyl-Ru azaspirocycles. Enolate addition to the activated arene ring was found to proceed with complete stereoselectivity.
Urethanes synthesis from oxamic acids under electrochemical conditions
作者:Ikechukwu Martin Ogbu、Jonathan Lusseau、Gülbin Kurtay、Frédéric Robert、Yannick Landais
DOI:10.1039/d0cc05069e
日期:——
Urethanesynthesis via oxidative decarboxylation of oxamic acids under mild electrochemical conditions is reported. This simple phosgene-free route to urethanes involves an in situ generation of isocyanates by anodic oxidation of oxamic acids in an alcoholic medium. The reaction is applicable to a wide range of oxamic acids, including chiral ones, and alcohols furnishing the desired urethanes in a
Facile preparation of protected benzylic and heteroarylmethyl amines via room temperature Curtius rearrangement
作者:Matthew L. Leathen、Emily A. Peterson
DOI:10.1016/j.tetlet.2010.03.101
日期:2010.5
Curtius rearrangement of phenyl and heteroaryl acetic acids is described. We have developed a protocol for room temperature Curtius rearrangement in MeOH or CHCl3 that provides an improvement over standard conditions, avoiding the use of additives or heat. This room temperature optimization of the Curtius rearrangement prevents the formation of side products often observed with benzylicacids, allowing
Provided herein are heterocyclic derivative compounds and pharmaceutical compositions comprising said compounds that are useful for inhibiting plasma kallikrein. Furthermore, the subject compounds and compositions are useful for the treatment of diseases wherein the inhibition of plasma kallikrein inhibition has been implicated, such as angioedema and the like.
Provided herein are heterocyclic derivative compounds and pharmaceutical compositions comprising said compounds that are useful for inhibiting plasma kallikrein. Furthermore, the subject compounds and compositions are useful for the treatment of diseases wherein the inhibition of plasma kallikrein inhibition has been implicated, such as angioedema and the like.