Acyclic diterpene and norsesquiterpene from the seed of Aphanamixis polystachya.
Fitoterapia 2020;
142:104518. [PMID:
32092532 DOI:
10.1016/j.fitote.2020.104518]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 11/18/2022]
Abstract
Aphanamoxene A-D (1-4), three new acyclic diterpene derivatives and one new acyclic norsesquiterpene were isolated from the seed of Aphanamixis polystachya. Their structures were elucidated on the basis of extensive spectroscopic methods, including 1D and 2D NMR and HRESIMS. And the absolute configuration of 1 was achieved by Mosher method. These acyclic terpenoids (1-4) showed obvious nitric oxide production inhibitory activity on lipopolysaccharide-Induced RAW264.7 macrophages with IC50 values of 17.6 ± 1.4, 9.8 ± 0.7, 16.6 ± 1.2, and 14.2 ± 0.9 μM, respectively.
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