Table 1.

Alpha-glucosidase inhibitory (IC₅₀) of compounds 1–16. Values are means ± standard errors of three independent experiments.

Compounds	IC50 µM
1	>300
2	245.3 ± 3.7
3	>300
4	206.7 ± 2.6
5	>300
6	282.0 ± 2.9
7	188.0 ± 3.1
8	87.1 ± 2.3
9	275.0 ± 4.5
10	>300
11	30.5 ± 1.9
12	97.7 ± 1.7
13	130.8 ± 3.9
14	205.3 ± 5.6
15	>300
16	>300
Acarbose (positive control)	332.5