Table 3. In vitro whole-cell anti-TB activity of 7-methoxy-indolizine analogues (5a–j) against H37RV and MDR-MTB isolates.

Compound Code	Anti-TB activity—MIC (μg/mL)
	H37RV isolate	MDR-MTB isolate*
5a	8	32
5b	NA	NA
5c	32	64
5d	8	NA
5e	32	NA
5f	32	NA
5g	NA	NA
5h	NA	NA
5i	8	16
5j	8	16

MIC, minimum inhibitory concentration.

*These isolates were found to be resistant to the first-line antibiotics rifampicin (1 μg/mL), and isoniazid (0.2 μg/mL).

NA: not active