New phenolics from the flowers of punica granatum and their in vitro α-glucosidase inhibitory activities

Authors

Tao Yuan, University of Rhode Island
Chunpeng Wan, University of Rhode Island
Hang Ma, University of Rhode Island
Navindra P. Seeram, University of Rhode Island

Document Type

Article

Date of Original Version

10-9-2013

Abstract

Two new phenolics, a 3-substituted coumarin, 7,8-dihydroxy-3- carboxymethylcoumarin-5-carboxylic acid (1), and a hydrolyzable tannin, namely punicatannin C (2), together with 10 known phenolics, were isolated from the flowers of pomegranate (Punica granatum). Their structures were determined on the basis of extensive spectroscopic analyses including HRESIMS, 1D and 2D NMR data. All the isolates were evaluated for in vitro α-glucosidase inhibitory activities. © Georg Thieme Verlag KG Stuttgart. New York.

Publication Title, e.g., Journal

Planta Medica

Volume

79

Issue

17

Citation/Publisher Attribution

Yuan, Tao, Chunpeng Wan, Hang Ma, and Navindra P. Seeram. "New phenolics from the flowers of punica granatum and their in vitro α-glucosidase inhibitory activities." Planta Medica 79, 17 (2013): 1674-1679. doi: 10.1055/s-0033-1350925.