Table 4.

Inhibitory activity of all compounds 1–11 against lipopolysaccharide (LPS)-induced NO production in the murine macrophage cell line (RAW 264.7 cells).

Compounds	IC50 (μM)
1	>50
2	22.3 ± 5.0
3	13.1 ± 6.8
4	13.9 ± 7.5
5	21.9 ± 9.8
6	>50
7	32.2 ± 5.7
8	17.8 ± 4.9
9	7.6 ± 2.0
10	3.6 ± 2.2
11	8.4 ± 2.2
Indometacin a	32.1 ± 2.5

^a Positive control.