Table 2.

The aqueous solubility of compounds 1–6 ^a.

Compounds	Aqueous Solubility IC50 (μg/mL)
	pH = 7.0
PTL	50
MCL	50
1	<10
2	<10
3	<10
4	<10
5	2500
6	2500

^a: The assays were measured at least in duplicate.