New furanoflavanoids, intestinal α-glucosidase inhibitory and free-radical (DPPH) scavenging, activity from antihyperglycemic root extract of Derris indica (Lam.)
2009; Elsevier BV; Volume: 17; Issue: 14 Linguagem: Inglês
10.1016/j.bmc.2009.05.051
ISSN1464-3391
AutoresR. Ranga Rao, Ashok Kumar Tiwari, P. Prabhakar Reddy, K. Suresh Babu, Amtul Z. Ali, Madhusudana Kuncha, J. Madhusudana Rao,
Tópico(s)Phytochemistry and Biological Activities
ResumoA bioassay-guided fractionation and chemical examination of antihyperglycemic root extract of Derris indica resulted in isolation and characterization of two new furanoflavanoids (1, 2) along with thirteen known compounds (3–15). Their structures were determined on the basis of extensive spectroscopic (IR, MS, 1D and 2D NMR) data analysis and by comparison with the literature data. All the compounds were tested in vitro for intestinal α-glucosidase inhibitory and DPPH radical activity. New compounds (1, 2) displayed moderate intestinal α-glucosidase inhibitory as well as free radical scavenging activity. Other compounds also displayed varying degrees of moderate intestinal α-glucosidase inhibitory activity. Pongamol (6) displayed potent intestinal α-glucosidase inhibition.
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