Table 2.

| Compound | Heterocyclic ring C | Anti-TB activity |
Cytotoxicity |
|
|---|---|---|---|---|
| H37Rv MIC (µM) | HEK293T CC50 µM) | HepG2 CC50 (µM) | ||
| 3i | ![]() |
0.6 | >40 | 5.8 |
| 3 k | ![]() |
1.23 | >40 | >40 |
| 3 l | ![]() |
0.16 | 27.7 | 17.0 |
| 3 m | ![]() |
0.22 | >40 | >40 |
| 19a | ![]() |
0.9 | 14.7 | 19.3 |
| 19b | ![]() |
1.25 | ND | >40 |
| 19c | ![]() |
0.84 | 31.7 | 18.5 |
| 19d | ![]() |
0.3 | >40 | 30.14 |
| 19e | ![]() |
1.25 | 26.0 | 13.7 |
| 19f | ![]() |
0.37 | 9.65 | 8.63 |
| 19 g | ![]() |
0.45 | 13.2 | 12.1 |
| 19 h | ![]() |
5 | >40 | >40 |
| 19i | ![]() |
0.62 | >40 | >40 |
| 19j | ![]() |
0.78 | 23.8 | 6.99 |













