Synthesis and Biological Evaluation of Aminonaphthols Incorporated Indole Derivatives

Table 2

RSA of the test compounds (4a–4r) and standards using DPPH scavenging method.

Compounds	Concentration
	25 g/mL (%)	50 g/mL (%)	75 g/mL (%)	100 g/mL (%)	IC50 (g/mL)
4a	68.81	70.73	70.41	70.41	<25
4b	72.05	72.66	71.70	75.88	<25
4c	42.12	40.19	42.44	44.05	<25
4d	50.16	57.23	58.84	61.09	<25
4e	78.77	84.56	86.17	85.53	<25
4f	71.06	72.99	68.48	71.06	<25
4g	69.13	69.45	72.34	68.16	<25
4h	67.84	71.70	74.27	77.49	<25
4i	68.16	69.13	70.09	69.13	<25
4j	65.91	68.16	71.70	70.09	<25
4k	81.02	80.38	79.09	77.81	<25
4l	65.91	71.06	69.13	69.77	<25
4m	44.37	37.29	44.05	44.69	<25
4n	85.20	77.81	78.45	78.13	<25
4o	70.09	75.24	74.59	74.59	<25
4p	70.09	72.99	73.63	73.64	<25
4q	78.45	81.67	83.27	78.77	<25
4r	78.45	81.67	83.27	78.77	<25
BHA	94.21	93.56	93.89	94.53	<25
TBHQ	93.24	91.96	94.21	94.85	<25
AA	91.63	92.92	93.24	93.89	<25