G907 is a selective and potent antagonist of the small molecule ATP-binding cassette (ABC) transporter protein MsbA, with bactericidal activity, which traps MsbA in the inner lipopolysaccharide.

Maytansine, an ansamycin antibiotic originally isolated from the Ethiopian shrub Maytenus serrata, inhibits the assembly of microtubules by binding to tubulin at the rhizoxin binding site.

1-Hydroxy-2-butanone, a natural product extractable from bamboo juice and tomato leaves, exhibits anti-tuberculosis activity.