Characterization and Potential Antidiabetic Activity of Proanthocyanidins from the Barks of Acacia mangium and Larix gmelinii

Figure 2

Chemical structure of (a) (epi)catechin, (b) (epi)fisetinidol, (c) (epi)robinetinidol, and (d) (epi)gallocatechin.

(a)

(b)

(c)

(d)