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Twenty natural stilbenoids (1−20), including seven new stilbenoids (2, 4–7, 19, 20) and thirteen known stilbenoids (1, 3, 8–18), were isolated from the stem barks of Acanthopanax leucorrhizus, and six modified stilbenoid derivatives (1a, 2a, 4a, 4b, 7a and 17a) were obtained via methylation, demethylation and isopentenylation of the corresponding isolates (1, 2, 4, 7 and 17). These stilbenoids were...
A new cis‐stilbenoid, 1,9‐dihydroxy‐10‐methoxy‐6H‐dibenzo[b,f]oxocin‐6‐one (2) was isolated from the AcOEt extract of the stem barks of Acanthopanax leucorrhizus, along with three known stilbenoids, 9‐hydroxy‐10‐methoxy‐6H‐dibenzo[b,f]oxocin‐6‐one (1), 5‐O‐methyl‐(E)‐resveratrol 3‐O‐β‐d‐glucopyranoside (3), and (E)‐resveratrol 3‐O‐β‐d‐xylopyranoside (4). Two derivatives (2a and 2b) were synthesized...
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