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A new asarone-derived racemate (1) was isolated from the rhizome of Acorus tatarinowii. The structure of 1 was established by comprehensive spectroscopic analyses, and it was successfully resolved by chiral… Click to show full abstract
A new asarone-derived racemate (1) was isolated from the rhizome of Acorus tatarinowii. The structure of 1 was established by comprehensive spectroscopic analyses, and it was successfully resolved by chiral HPLC, demonstrating that it is racemic. The absolute configurations of 1a [(-)-acortatarone A] and 1b [(+)-acortatarone A] were determined using quantum chemical calculations. Compounds 1a and 1b were the first cases of asarone derivatives with the 5,7-dialkyl-6-aryl-8-oxabicyclo[3.2.1]oct-3-en-2-one core. The α-glucosidase inhibitory and acetylcholinesterase (AChE) inhibitory activities of 1 were evaluated, and it exhibited α-glucosidase inhibitory activity with potency close to that of the positive control (acarbose).
Journal Title: Fitoterapia
Year Published: 2017
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