Three new acetylated benzyl-beta-resorcylate glycosides from Cassia obtusifolia

Three new acetylated benzyl-beta-resorcylate glycosides (1–3) were isolated from seeds of Cassia obtusifolia. Their structures were determined on the basis of the spectroscopic methods and physicochemical properties as 2-benzyl-4,6-dihydroxy benzoic acid-6-O-[2,6-O-diacetyl]-d-glucopyranoside (1), 2-benzyl-4,6-dihydroxy benzoic acid-6-O-[3,6-O-diacetyl]-d-glucopyranoside (2) and 2-benzyl-4, 6-dihydroxy benzoic acid-6-O-[4,6-O-diacetyl]-d-glucopyranoside (3), respectively.

Graphical abstractThree new acetylated benzyl-beta-resorcylate glycosides (1–3) were isolated from seeds of Cassia obtusifoliaFigure optionsDownload full-size imageDownload high-quality image (142 K)Download as PowerPoint slideFig. Structure and selected HMBC correlations (H→C) for compounds 1–3 and 1a