Hydride-induced Meisenheimer complex formation reflects activity of nitro aromatic anti-tuberculosis compounds
Miller, Patricia A.
Lee, Bei Shi
Moraski, Garrett C.
Miller, Marvin J.
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The formation efficiency of hydride-induced Meisenheimer complexes of nitroaromatic compounds is consistent with their anti-TB activities exemplied by MDL860 and benzothiazol N-oxide (BTO) analogs. Herein we report that nitro cyano phenoxybenzenes (MDL860 and analogs) reacted slowly and incompletely which reflected their moderate anti-TB activity, in contrast to the instantaneous reaction of BTO derivatives to quantitatively generate Meisenheimer complexes which corresponded to their enhanced anti-TB activity. These results were corroborated by mycobacterial and radiolabelling studies that confirmed inhibition of the DprE1 enzyme by BTO derivatives but not MDL860 analogs.
Liu, Rui, Lowell Markley, Patricia A. Miller, Scott Franzblau, Gauri Shetye, Rui Ma, Karin Savková et al. "Hydride-induced Meisenheimer complex formation reflects activity of nitro aromatic anti-tuberculosis compounds." RSC medicinal chemistry 12, no. 1 (2021): 62-72.