Fang FH, Li WH, Han ZZ, Huang WJ, Li DX, Zhao S, Tang MH, Yuan CS. Terpenoids from Euphorbia pekinensis.
J Asian Nat Prod Res 2015;
17:1213-1219. [PMID:
26654567 DOI:
10.1080/10286020.2015.1118466]
[Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 11/06/2015] [Indexed: 06/05/2023]
Abstract
Euphorpekone A (1) and euphorpekone B (2), two new diterpenoids, 3β-hydroxy-25-methyloxylanosta-8,23-diene, a new triterpenoid (3), together with a known triterpenoid, 3β,25-dihydroxylanosta-8,23-diene (4), were isolated from Euphorbia pekinensis Rupr. Their structures were elucidated on the basis of UV, IR, 1D ((1)H, (13)C, NOE) and 2D ((1)H-(1)H COSY, HSQC, HMBC) NMR, HR-ESI-MS, X-ray diffraction analysis, and CD method.
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