Table 1. Cytotoxicity Evaluation on Normal Human Fibroblasts (Wi-38).

compd no.	EC100a (nM)
8a	13.8 ± 0.2
8b	1.0 ± 0.1
8c	1.9 ± 0.2
10	17.1 ± 0.1
11	3.0 ± 0.1
12	1.5 ± 0.0
13	5.8 ± 0.277
14a	13.5 ± 0.2
14b	15.0 ± 0.3
14c	1.7 ± 0.1
14d	15.6 ± 0.1
14e	2.9 ± 0.2
DOX	11.5 ± 0.5

^aValues are presented as mean ± SEM.