| Literature DB >> 10924171 |
X D Luo1, S H Wu, Y B Ma, D G Wu.
Abstract
Five new tetranortriterpenoids-walsurin (1), isowalsuranolide (2), walsuranolide (3), 11beta-acetoxywalsuranolide (4), and 20, 22-dihydro-22,23-epoxywalsuranolide (5)-and three new natural tetranortriterpenoids-11beta-hydroxydihydrocedrelone (6), 11beta-acetoxydihydrocedrelone (7), and 11beta-hydroxycedrelone (8)-together with a known tetranortriterpenoid, cedrelone (9), were isolated from the bark of Walsura yunnanensis. The structures of 1-8 were determined on the basis of spectral evidence.Entities:
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Year: 2000 PMID： 10924171 DOI： 10.1021/np990607x
Source DB: PubMed Journal: J Nat Prod ISSN： 0163-3864 Impact factor: 4.050