Trimethylaluminium-Mediated Reaction of Primary Carboxamides with Amines and Indoles: A Convenient Synthesis of Amidines and Indole-3-acylimines
作者:A. Velavan、S. Sumathi、K. K. Balasubramanian
DOI:10.1002/ejoc.201402386
日期:2014.9
A simple, convenient and generalmethod, exhibiting good functional group tolerance, is described for the synthesis of N- and N,N-disubstituted amidines by the reaction of primary carboxamides with amines mediated by trimethylaluminium (AlMe3). Subsequent reaction of the indole systems with primary carboxamides in the presence of AlMe3 gives exclusively the C-3 substituted imine product.
Application of the copper catalysed N-arylation of amidines in the synthesis of analogues of the chemical tool, blebbistatin
作者:Christopher P. A. T. Lawson、Alexandra M. Z. Slawin、Nicholas J. Westwood
DOI:10.1039/c0cc03624b
日期:——
A robust protocol for the CuI-catalysed arylation of amidines is presented. Whilst the initially identified conditions were useful for benzamidine-derived substrates, difficulties were encountered with more complex substrates. This problem was overcome following a change in ligand type, enabling the synthesis of analogues of the chemical tool, blebbistatin.
Direct, Late‐Stage Mono‐
<i>N</i>
‐arylation of Pentamidine: Method Development, Mechanistic Insight, and Expedient Access to Novel Antiparastitics against Diamidine‐Resistant Parasites
作者:Jack Robertson、Marzuq A. Ungogo、Mustafa M. Aldfer、Leandro Lemgruber、Fergus S. McWhinnie、Bela E. Bode、Katherine L. Jones、Allan J. B. Watson、Harry P. Koning、Glenn A. Burley
DOI:10.1002/cmdc.202100509
日期:2021.11.19
Accessing antiparasitic amidines: A selective mono-N-arylation strategy of amidines under Chan-Lam conditions was used to access the first mono-N-arylated analogues of pentamidine. Sub-micromolar activity against kinetoplastid parasites was observed for several analogues with no cross-resistance in pentamidine and diminazene-resistant trypanosome strains and against Leishmania mexicana. This work highlights