New dihydrophenanthrene and phenyldihydroisocoumarin constituents of Trema orientalis.
In the course of the chemical investigation of extracts of the trunk bark and root bark of Trema orientalis, three new compounds were isolated, namely, (9S*,10S*)-3-[7-(3,10-dihydroxy-9-hydroxymethyl-2,5-dimethoxy)-9,10-dihydrophenanthrenyl]propenal (1), (9S*,10S*)-3-[7-(5-O-beta-glucopyranosyl-10-hydroxy-9-hydroxymethyl-2,6-dimethoxy)-9,10-dihydrophenanthrenyl]propenal (2), and (3R*,3aR*,4R*,5S*)-6-O-alpha-arabinopyranosyl-8-hydroxy-3-(4-hydroxyphenyl)-4-(4-hydroxyphenyl)-5-(3,5-dihydroxyphenyl)-3,3a-dihydrocyclopenta[1,2,3-de]isobenzopyran-1-one (3, orientoside A). The structures of 1-3 were determined by spectral methods.
Dijoux-Franca
M G
MG
Laboratoire de Pharmacognosie, DPM UMR 5063 CNRS-UJF, Faculté de Pharmacie, Université de Grenoble I, Domaine de La Merci, 38706 La Tronche Cedex, France. Marie-Genevieve.Dijoux@ujf-grenoble.fr
Noungoué Tchamo
D
D
Cherel
B
B
Cussac
M
M
Tsamo
E
E
Mariotte
A M
AM
D002163:Cameroon; D003374:Coumarins / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010616:Phenanthrenes / Q000737:chemistry*; D019441:Plant Epidermis / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
C433630:3-(7-(3,10-dihydroxy-9-hydroxymethyl-2,5-dimethoxy)-9,10-dihydrophenanthrenyl)propenal; D003374:Coumarins; D010616:Phenanthrenes