Triterpenes of Poria cocos

Four lanostane triterpenes and four novel 3,4- seco-lanostane triterpenes were isolated from the surface layer of Poria cocos. 3β-Hydroxylanosta-7,9(11),24-trien-21-oic acid, trametenolic acid, dehydroeburicoic acid and eburicoic acid were isolated by HPLC after treatment with N-chloromethylphthalim...

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Veröffentlicht in:	Phytochemistry (Oxford) 1993, Vol.32 (5), p.1239-1244
Hauptverfasser:	Tai, Takaaki, Akahori, Akira, Shingu, Tetsuro
Format:	Artikel
Sprache:	eng
Schlagworte:	3β-hydroxylanosta-7,9,24-trien-21-oic acid Basidiomycetes Biological and medical sciences Chemical constitution dehydroeburicoic acid eburicoic acid Fundamental and applied biological sciences. Psychology N-chloromethylphthalimide, poricoic acid C, D Plant physiology and development Poria cocos poricoic acid DM, AM trametenolic acid
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Beschreibung
Zusammenfassung:	Four lanostane triterpenes and four novel 3,4- seco-lanostane triterpenes were isolated from the surface layer of Poria cocos. 3β-Hydroxylanosta-7,9(11),24-trien-21-oic acid, trametenolic acid, dehydroeburicoic acid and eburicoic acid were isolated by HPLC after treatment with N-chloromethylphthalimide. Four novel 3,4- seco-lanostanes: poricoic acid C, D, DM and AM were isolated by HPLC methods. Their structures are, respectively, 3,4- seco-lanosta-4(28),7,9(11),24(31)-tetraen-3,21-dioic acid and 16α,25-dihydroxy-3,4- seco-lanosta-4(28),7,9(11),24(31)-tetraen-3,21-dioic acid, 16α,25-dihydroxy-3,4- seco-lanosta-4(28),7,9(11),24(31)-tetraen-3,21-dioic acid 3-methyl ester and 16α-hydroxy-3,4- seco-lanosta-4(28),7,9(11),24(31)-tetraen-3,21-dioic acid 3-methyl ester, from spectroscopic evidence.
ISSN:	0031-9422 1873-3700
DOI:	10.1016/S0031-9422(00)95099-4