Short malonyl dehydro peptides as potential scaffolds for peptidomimetics by an efficient Knoevenagel reaction
作者:Stefania Fioravanti、Simona Gasbarri、Alberto Morreale、Lucio Pellacani、Federico Ramadori、Paolo A. Tardella
DOI:10.1007/s00726-009-0462-1
日期:2010.7
Non-symmetric disubstituted malonamides rAA-mGly-AA', obtained from Meldrum's acid, were considered as methylene active compounds and a Knoevenagel condensation methodology was developed involving piperidine and activated 4 molecular sieves as catalysts. The reaction is efficient, broad in scope, and easy to perform and allows access to E/Z mixtures of short malonyl dehydro peptides (MDHPs) rAA-m Delta(2)AAaEuro(3)-AA', partially modified retro peptides characterized by an interesting combination of retro and dehydro modifications in the same structure.