Biological activity of coumarin-indole derivatives 56–60.

Compd.	Activity	Ref.
56	Anti-Leishmania activity: IC50 = 95.5 μg mL−1	85
	DPPH: IC50 = 12.4 μM
57	Anti-Leishmania activity: IC50 = 95 μg mL−1	85
	DPPH: IC50 = 13.49 μM
Sodium stibogluconate	Anti-Leishmania activity: IC50 = 490 μg mL−1	85
Sodium ascorbate	DPPH: IC50 = 12.8 μM	85
58	α-Glucosidase: IC50 = 85 μM	86
Acarbose	α-Glucosidase: IC50 = 750 μM	86
59	HMG-CoA reductase: inhibition rate = 56%	87
60	Acetylcholinesterase: IC50 = 0.16 μM	88
61	HepG2 cells: IC50 = 4.63 μM	89
	SMMC-7721 cells: IC50 = 3.11 μM