Figure 11 | Scientific Reports

Figure 11

From: The Amazon rain forest plant Uncaria tomentosa (cat’s claw) and its specific proanthocyanidin constituents are potent inhibitors and reducers of both brain plaques and tangles

Figure 11

Purification and identity of the major components in PTI-777. (a) Structure of fraction f as chlorogenic acid (b) Structure of fraction j as epicatechin. (c) Structure of fraction h2 as epicatechin-4β-8-epicatechin (known as proanthocyanidin B2). (d) Structure of fraction h1 as catechin-4α-8-epicatechin (known as proanthocyanidin B4). (e) Structure of fraction k2 as epicatechin-4β-8-epicatechin-4β-8-epicatechin (known as proanthocyanidin C1). (f) Structure of fraction k1 as epiafzelechin-4β-8-epicatechin. See Supplement Results and Figures for structural elucidation and identification studies.

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