Related Experiment Video
Updated: Aug 1, 2025

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Structure-directed identification of pyridine-2-methylamine derivatives as MmpL3 inhibitors for use as antitubercular
Yu Wen1, Shichun Lun2, Yuxue Jiao1
1Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China.
Abstract:
Mycobacterial membrane protein Large 3 (MmpL3), an inner membrane protein, plays a crucial role in the transport of mycolic acids that are essential for the viability of M. tuberculosis and has been a promising therapeutic target for new anti-TB agents. Herein, we report the discovery of pyridine-2-methylamine antitubercular compounds using a structure-based drug design strategy. Compound 62 stands out as the most potent compound with high activity against M. tb strain H37Rv (MIC = 0.016 μg/mL) as well as the clinically isolated strains of MDR/XDR-TB (MIC = 0.0039-0.0625 μg/mL), low Vero cell toxicity (IC50 ≥ 16 μg/mL), and moderate liver microsomal stability (CLint = 28 μL/min/mg). Furthermore, the resistant mutant of S288T due to single nucleotide polymorphism in mmpL3 was resistant to pyridine-2-methylamine 62, demonstrating compound 62 is likely target to MmpL3.
Related Concept Videos
Nomenclature of Aryl and Heterocyclic Amines
Basicity of Heterocyclic Aromatic Amines
Physical Properties of Amines

