Table 2.

Imidazo[1,2-b][1,2,4,5]tetrazines MICs on M. smegmatis strains in liquid medium.

Compound	M. smegmatis Strains MICs, μg/mL
	mc2 155	atR1c	atR2c	atR9c	atR14c	atR33c	0641c	1601c	2087c
3a	128	512	512	512	512	512	128	128	128
3c	64	>128 *	>128 *	>128 *	>128 *	>128 *	64	64	64
3h	128	>256 *	>256 *	>256 *	>256 *	>256 *	128	128	128
3n	64	256	256	256	256	256	64	64	64

* The compounds were not soluble at higher concentrations; bacterial growth was observed at the stated concentrations.