Table 3. Inhibitory Effects of Part of the Obtained Compounds against ZIKV NS2B/NS3^a.

compounds	screening at 100 μM (%)	screening at 20 μM (%)	IC50 (μM)
2a	98 ± 0.5	51 ± 3.4	19.8 ± 0.5
2b	55 ± 2.3	64 ± 2.5	84.9 ± 9.0
2c	48 ± 2.2	25 ± 2.6	>100
2d	53 ± 1.7	25 ± 2.2	92.5 ± 3.1
2e	99 ± 0.2	72 ± 3.1	13.0 ± 0.4
2f	99 ± 0.4	98 ± 1.1	2.7 ± 0.3
2g	97 ± 1.1	99 ± 0.4	1.9 ± 0.1
2h	99 ± 0.2	96 ± 0.4	4.8 ± 0.5
2i	NT	NT	NT
2j	82 ± 2.7	50 ± 3.8	19.7 ± 2.1
2k	100 ± 0.1	86 ± 0.8	6.1 ± 0.6
2l	NT	NT	NT
2m	NT	NT	NT

^aNT: not tested.