TANNINS AND RELATED-COMPOUNDS .123. CHROMONE, ACETOPHENONE AND PHENYLPROPANOID GLYCOSIDES AND THEIR GALLOYL AND OR HEXAHYDROXYDIPHENOYL ESTERS FROM THE LEAVES OF SYZYGIUM-AROMATICUM MERR ET PERRY

From the dried leaves of Syzygium aromaticum MERR. et PERRY (Myrtaceae ), eleven new compounds, i.e., eugenol 4-O-beta-D-(6'-O-galloyl)glucop yranoside (17), 2-methyl-5,7-dihydroxychromone 8-C-beta-D-glucopyranos ide (18) and its 6'-O-gallate (19), 2,4,6-trihydroxyacetophenone 3-C-b eta-D-glucopyranoside (20) and its 2'-O- (21), 6'-O- (22), 2',3'-di-O- (23), 2',6'-di-O- (24), 2',3',6'-tri-O- (25), 2',3',4',6'-tetra-O-gal late (26) and ',3'-di-O-galloyl-4',6'-O-(S)-hexahydroxydiphenoyl ester (27) were isolated, together with sixteen known tannins and related c ompounds. The structures of these compounds were established on the ba sis of spectroscopic and chemical evidence.