New xanthones from Psorospermum febrifugum.
The isolation and structural determination of two new xanthone derivatives, 1,2,4-trimethoxy-3,8-dihydroxyxanthone, 1,2,4-trimethoxy-3-hydroxyxanthone and a known 2-methoxy-3-hydroxyxanthone from Psorospermum febrifugum var. ferrugineum are reported. The structures were elucidated by extensive analysis of 1H and 13C nmr, ms, and chemical correlations.
Habib
A M
AM
Department of Medicinal Chemistry and Pharmacognosy, School of Pharmacy and Pharmacal Sciences, Purdue University, West Lafayette, Indiana 47907.
Reddy
K S
KS
McCloud
T G
TG
Chang
C J
CJ
Cassady
J M
JM
D006586:Hexanes / Q000032:analysis; D010946:Plants, Medicinal / Q000032:analysis*; D013057:Spectrum Analysis; D014966:Xanthenes / Q000302:isolation & purification*; D044004:Xanthones
D006586:Hexanes; D014966:Xanthenes; D044004:Xanthones; C009689:xanthone