Abstract
AbstractFrom the roots of Eurycoma longifolia, seven compounds including β‐carboline‐2N‐oxide‐1‐propionic acid (1), 9,10‐dimethoxycanthin‐6‐one (2), β‐carboline‐1‐propionic acid (3), infractine (4), eurylene (5), eurycomanone (6), 14,15‐β‐hydroxyklaineanol (7) were isolated. Their structures were determined by means of spectroscopic methods (UV, IR, HR‐ESIMS, 1D and 2D NMR). Compound (1) has been isolated for the first time from nature and compound (4) has been isolated for the first time from Eurycoma longifolia.
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