Song F-H, Fan X, Xu X-L, Zhao J-L, Han L-J, Shi J-G
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
J Asian Nat Prod Res. 2005 Dec;7(6):777-81. doi: 10.1080/1028602032000169532.
A novel sesquiterpene-substituted benzoic acid, named dictyvaric acid (1), together with nine known compounds (2-10), have been isolated from the brown alga Dictyopteris divaricata Okam. The structure of 1 was elucidated as 3-[(decahydro-2-hydroxy-2,5,5,8a-tetramethyl-1-naphthalenyl)-methyl]-4-hydroxybenzoic acid by spectroscopic methods, including IR, FABMS, HR-FABMS, 1D and 2D NMR techniques. All compounds were obtained from this species for the first time.
