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Two Novel Triterpenes from the Leaves of Ficus microcarpa
Author(s) -
Kuo YuehHsiung,
Lin HuanYou
Publication year - 2004
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.200490097
Subject(s) - chemistry , terpene , skeleton (computer programming) , stereochemistry , derivative (finance) , botany , computer science , financial economics , economics , programming language , biology
Two novel triterpenes, 29(20→19)abeolupane‐3,20‐dione ( 4 ) and 19,20‐secoursane‐3,19,20‐trione ( 5 ), besides (3 β )‐3‐hydroxy‐29(20→19)abeolupan‐20‐one ( 2 ), lupenone, and α ‐amyrone ( 6 ), were isolated from the leaves of Ficus microcarpa and were characterized by spectroscopic means, including 2D‐NMR techniques and chemical methods. Compound 4 is the second derivative having the 29(20→19)abeolupane skeleton, and 5 is a novel skeleton. A biosynthetic pathway to 5 is proposed ( Scheme ).