“…In addition, 11 known hydrolyzable tannins, pedunculagin, casuarinin, 1,4,6-tri- O -galloyl-β- d -glucose, 2,4,6-tri- O -galloyl- d -glucose, 1,2,4,6-tetra- O -galloyl-β- d -glucose, guavin C, pterocarinin A, and isorugosins A ( 4 ), B ( 5 ), D ( 6 ), and G ( 7 ) (Figure ), were also identified. Among these known hydrolyzable tannins, 2,4,6-tri- O -galloyl- d -glucose, guavin C, and pterocarinin A were isolated for the first time from this plant source.…”