Table 2. XTT IC₅₀ of Selected Picolinamides Analogues with HeLa Cells.

	IC50 (μg·mL–1)
4	79.9 ± 1.0
5	179.3 ± 3.6a
87	95.2 ± 1.0
89	170.2 ± 2.5
90	NT at 64b
92	NT at 256b
93	NT at 64b
94	40.1 ± 1.6
97	135 ± 8.6
98	114.8 ± 2.2
99	37.0 ± 1.0
106	105.9 ± 2.1
107	88.0 ± 2.3
108	93.3 ± 1.7
109	77.4 ± 2.3
110	91.6 ± 1.3
114	53.3 ± 3.6
116	NT at 128b
118	79.9 ± 6.3
119	123.6 ± 3.3

^aReported previously²¹ and included here for comparison.

^bNT, no detectable toxicity at the specified concentration.