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
Unaromatized Tetrahydrobenzimidazole Synthesis from <i>p</i>
-Benzoquinone and <i>N</i>
-Arylamidines and their Cytotoxic Potential
作者:Minh Quan Tran、Thanh Binh Nguyen、Wamtinga Richard Sawadogo、Ludmila Ermolenko、Sungmi Song、Pascal Retailleau、Marc Diederich、Ali Al-Mourabit
DOI:10.1002/ejoc.201801077
日期:2018.11.15
New tetrahydrobenzimidazoles were synthesized using a simple method from p‐benzoquinone and N‐arylamidines, and their cytotoxic potential was evaluated. Among them, three are cytotoxic in the µm range.
Novel and efficient base-mediated N-alkylation and amidation of amidines with alcohols have been developed, which can be carried out in one-pot reaction conditions, which allows for the synthesis of a wide range of N-alkyl amines and free amides in good to excellent yields with high atom economy. In contrast to borrowing hydrogen/hydrogen autotransfer or oxidative-type N-alkylation reactions, in which
OMS-2 is employed to synthesize heterocycles through selective oxidation without the help of ligands.
OMS-2 可在不借助配体的情况下,通过选择性氧化合成杂环。
Simple and Efficient Procedure for Synthesis of N'-Arylamidines Using Trimethylaluminum
作者:Balaji L. Korbad、Sang-Hyeup Lee
DOI:10.5012/bkcs.2013.34.4.1266
日期:2013.4.20
howeverit requires longer reaction time and harsh reaction condition.In 1990, Garigipati reported the conversion of alkyl and arylnitriles to unsubstituted amidines in a single step usingmethylchloroaluminum amide which prepared by additionof ammonum chloride to commercially available trimethyl-aluminum.