Stilbenes from the Orchid Phragmipedium sp.
Three species of Phragmipedium (Orchidaceae), P. calurum, P. longifolium, and P. hybrid (var. Sorcerer's Apprentice), were analyzed by high-throughput isolation. A total of 12 new (1-4, 6-10, 12, 14, 16) and five known compounds (5, 11, 13, 15, 17) were isolated from these orchids. Compounds 1-8 are stilbenes substituted with one or two 4-hydroxybenzyl moieties. This type of substitution on stilbenes is unusual and has been reported only twice. The structure elucidation was based on spectroscopic analysis.
Garo
Eliane
E
Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences Inc., 1912 Innerbelt Business Center Drive, Saint Louis, Missouri 63114, USA. egaro@sequoiasciences.com
Hu
Jin-Feng
JF
Goering
Matt
M
Hough
Grayson
G
O'Neil-Johnson
Mark
M
Eldridge
Gary
G
D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D029595:Orchidaceae / Q000737:chemistry* / Q000235:genetics; D013267:Stilbenes / Q000737:chemistry / Q000302:isolation & purification*
D013267:Stilbenes