Two New Triterpenes from the Surface Layer of  Poria cocos | Zendy

Yang ChunHua | Zendy; Zhang ShiFang | Zendy; Liu WenYing | Zendy; Zhang ZunJian | Zendy; Liu JingHan | Zendy

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Two New Triterpenes from the Surface Layer of Poria cocos

Author(s) -

Yang ChunHua,

Zhang ShiFang,

Liu WenYing,

Zhang ZunJian,

Liu JingHan

Publication year - 2009

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.200800360

Subject(s) - chemistry , terpene , stereochemistry , mushroom , food science

Two new triterpenes, poricoic acid AE ( 1 ) and poricoic acid CE ( 2 ), were isolated from the surface layer of the mushroom Poria cocos ( Schw .) Wolf , together with four known triterpenes, 3‐ O ‐acetyldehydroeburicoic acid, 3‐oxolanosta‐7,9(11),24(31)‐trien‐21‐oic acid, dehydrotrametenolic acid, and poricoic acid A. The structures of the two new triterpenes were elucidated as 16 α ‐hydroxy‐3,4‐seco‐lanosta‐4(28),7,9(11),24(31)‐tetraene‐3,21‐dioic acid‐3‐ethyl ester ( 1 ) and 3,4‐secolanosta‐4(28),7,9(11),24(31)‐tetraene‐3,21‐dioic acid‐3‐ethyl ester ( 2 ) mainly on the basis of HR‐ESI‐MS, EI‐MS, and 2D‐NMR analyses.

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