When attempting to extend the Zn(OTf)2-catalyzed hydrazination of propargylic amides (en route to Fischer indoles) to alkanoic propargylamides, it was discovered that after the initial hydrazination event, the respective N-anilinoimidazoles are obtained. The use of stoichiometric ZnCl2 as the promoter still gave the Fischer indole product. The unexpected reaction outcome was attributed to the overly
Conjugation of a 5-nitrofuran-2-oyl moiety to aminoalkylimidazoles produces non-toxic nitrofurans that are efficacious in vitro and in vivo against multidrug-resistant Mycobacterium tuberculosis
Within the general nitrofuran carboxamide chemotype, chimera derivatives incorporating diversely substituted imidazoles attached via an alkylamino linker were synthesized. Antimycobacterial evaluation against drug-sensitive M. tuberculosis H37Rv strain identified five active druglike compounds which were further profiled against patient-derived M. tuberculosis strains in vitro. One of the compounds