Molecules 2012, 17(10), 11598-11606; doi:10.3390/molecules171011598
Article

E- and Z-Isomers of New Phytoecdysteroid Conjugates from French Polynesian Microsorum membranifolium (Polypodiaceae) Fronds

Received: 29 August 2012; in revised form: 21 September 2012 / Accepted: 24 September 2012 / Published: 28 September 2012
(This article belongs to the Section Natural Products)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Phytochemical investigation of the fronds of Microsorum membranifolium resulted in the isolation of a new phytoecdysteroid, E-2-deoxy-20-hydroxyecdysone 3-[4-(1-b-D-glucopyranosyl)]-caffeate (1), together with two known phytoecdysteroids, E-2-deoxy-20-hydroxyecdysone 3-[4-(1-b-D-glucopyranosyl)]-ferulate (2), E-2-deoxyecdysone 3-[4-(1-b-D-glucopyranosyl)]-ferulate (3). Their respective Z-isomers 46 were also observed and identified for the first time. The new structures were elucidated on the basis of extensive spectroscopic data analysis (1D, 2D-NMR and HR-MS techniques).
Keywords: phytoecdysteroids; fronds; Microsorum membranifolium (R. Br.) Ching; Polypodiaceae; French Polynesia
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MDPI and ACS Style

Ho, R.; Girault, J.-P.; Raharivelomanana, P.; Lafont, R. E- and Z-Isomers of New Phytoecdysteroid Conjugates from French Polynesian Microsorum membranifolium (Polypodiaceae) Fronds. Molecules 2012, 17, 11598-11606.

AMA Style

Ho R, Girault J-P, Raharivelomanana P, Lafont R. E- and Z-Isomers of New Phytoecdysteroid Conjugates from French Polynesian Microsorum membranifolium (Polypodiaceae) Fronds. Molecules. 2012; 17(10):11598-11606.

Chicago/Turabian Style

Ho, Raimana; Girault, Jean-Pierre; Raharivelomanana, Phila; Lafont, René. 2012. "E- and Z-Isomers of New Phytoecdysteroid Conjugates from French Polynesian Microsorum membranifolium (Polypodiaceae) Fronds." Molecules 17, no. 10: 11598-11606.

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