Table 2.

The 50% of maximal effect values.

Compound	EC50 (μM)a	Compound	EC50 (μM)a
5a	13.5 ± 2.72	5g	1.36 × 10−1 ± 1.16 × 10−3
5b	9.63 ± 1.59	5h	2.37 × 10−2 ± 1.16 × 10−3
5c	12.3 ± 5.65	5i	10.4 ± 1.29
5d	2.61 ± 1.09	5j	10.0 ± 2.96
5e	5.47 × 10−1 ± 1.49 × 10−3	5k	11.2 ± 2.07
5f	1.02 × 10−2 ± 1.56 × 10−3	5l	11.0 ± 2.02

^aData are mean ± SD, n = 3.