An ellagitannin, n-BUTYL GALLATE (cas 1083-41-6), two aryltetralin lignans, and an unprecedented diterpene ester from Pelargonium reniforme

Add time:08/14/2019    Source:sciencedirect.com

The structural diversity of the metabolic pool of Pelargonium reniforme was extended by the characterization of the 1C4-glucose based ellagitannin pelargoniin E, gallic acid n-butyl ester, (−)-4,4′,9′-trihydroxy-3′,5′-dimethoxy-2,7′-cyclolignan 9-O-β-glucopyranoside and reniformin, a diterpene ester comprised of a diterpene acid with an uncommon –(CH2)2– bridging element linked to 2-(4-hydroxyphenyl)ethansulfonic acid. These metabolites were associated with the known (α,β)-3,4-di-O-galloyl-glucopyranoside, 4,6-dihydroxy-2β-glucopyranosyloxyacetophenone, 1-O-galloylglycerol, 6′-O-galloylsalidroside and (+)-isolariciresinol-9′-O-β-glucopyranoside. All structures were established on the basis of spectroscopic methods.

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