39620-04-7Relevant articles and documents
3-Substituted 2-isocyanopyridines as versatile convertible isocyanides for peptidomimetic design
Ballet, Steven,Elsocht, Mathias,Hollanders, Charlie,Jida, Mouhamad,Maes, Bert U. W.,Renders, Evelien,Van der Poorten, Olivier
supporting information, p. 6863 - 6866 (2021/07/19)
We report the use of 3-substituted 2-isocyanopyridines as convertible isocyanides in Ugi four-component reactions. TheN-(3-substituted pyridin-2-yl)amide Ugi products can be cleaved by amines, alcohols, and water with Zn(OAc)2as a catalyst. In addition, the applicability of the method was demonstrated in constrained di-/tripeptides bearing acid and base sensitive protective groups obtainedviaUgi-4CR post-condensation modifications.
PROCESS FOR THE CATALYTIC DIRECTED CLEAVAGE OF AMIDE-CONTAINING COMPOUNDS
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Page/Page column 51; 53, (2017/04/11)
The present invention relates to a catalytic method for the conversion of amide-containing compouds by means of a build-in directing group and upon the action of a heteronucleophilic compound (in se an amine (RNH2 or RNHR') or an alcohol (ROH) or a thiol (RSH)) in the presence of a metal catalyst to respectively esters, thioesters, carbonates, thiocarbonates and to what is defined as amide-containing compounds (such as carboxamides, urea, carbamates, thiocarbamates). The present invention also relates to these amide-containing compounds having a build-in directing group (DG), as well as the use of such directing groups in the catalytic directed cleavage of N-DG amides with the use of heteronucleophiles (in se an amine (RNH2 or RNHR') or an alcohol (ROH) or thiol (RSH)).