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

Molecules

Raimana Ho¹  Jean-Pierre Girault¹  Phila Raharivelomanana¹ 

[1] ¹Laboratoire Biodiversité Terrestre et Marine, Université de la Polynésie Française, B.P. 6570 Faa’a, 98702 FAA’A, Tahiti, French Polynesia

关键词: phytoecdysteroids;    fronds;    Microsorum membranifolium (R. Br.) Ching;    Polypodiaceae;    French Polynesia;   

DOI  :  10.3390/molecules171011598

来源: mdpi

【 摘 要 】

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 4–6 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).

【 授权许可】

CC BY   
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