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Natural Product Research
Formerly Natural Product Letters
Volume 33, 2019 - Issue 8
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Short Communication

Heptyl vicianoside and methyl caramboside from sour star fruit

, &
Pages 1233-1236 | Received 11 Dec 2017, Accepted 13 Apr 2018, Published online: 23 Apr 2018
 

Abstract

Two new alkyl glycosides, heptyl vicianoside (1) and methyl 2-O-β-d-fucopyranosyl-α-l-arabinofuranoside (methyl caramboside, 4), were isolated from the sour fruit of Averrhoa carambola L. (Oxalidaceae), along with octyl vicianoside (2), cis-3-hexenyl rutinoside (3), and methyl α-d-fructofuranoside (5). Their structures were determined by spectroscopic and chemical methods. Compounds 2, 3, and 5 were obtained from the genus Averrhoa for the first time. All the compounds were evaluated for in vitro α-glucosidase, pancreatic lipase, and acetylcholinesterase inhibitory activities, but none of them were potent.

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