Five novel biscembranoids,ximaolides H-L(1-5),along with four known related compounds(6-9) were isolated from the Hainan soft coral Sarcophyton tortuosum.The structures of the new compounds were determined by extensiv...Five novel biscembranoids,ximaolides H-L(1-5),along with four known related compounds(6-9) were isolated from the Hainan soft coral Sarcophyton tortuosum.The structures of the new compounds were determined by extensive spectroscopic analysis,quantum chemical calculations,and/or by comparing their CD spectra with those of the known compounds.Compounds 1 and 2 are the first examples of biscembranoids bearing a 1,35-bridged lactone moiety,4 is the first biscembranoid comprising an uncommon oxetane ring,and 5 represents the first 36-peroxyl biscembranoid.Ximaolides Ⅰ(2),K(4) and F(9) exhibited interesting anti-inflammatory activity by the inhibition of LPS-induced TNF-α protein release in RAW264.7 macrophages.展开更多
基金financially supported by the National Natural Science Foundation of China(NSFC,Nos.81991521,8202290170,42076099)the NSFC/CNRS(Centre National de la Recherche Scientifique)Joint Project(No.81811530284)+3 种基金the National Key Research and Development Program of China(No.2018YFC0310903)the SKLDR/SIMM Project(No.SIMM1903ZZ-04)the Shanghai Rising-Star Program(No.20QA1411100)SA-SIBS Scholarship Program。
文摘Five novel biscembranoids,ximaolides H-L(1-5),along with four known related compounds(6-9) were isolated from the Hainan soft coral Sarcophyton tortuosum.The structures of the new compounds were determined by extensive spectroscopic analysis,quantum chemical calculations,and/or by comparing their CD spectra with those of the known compounds.Compounds 1 and 2 are the first examples of biscembranoids bearing a 1,35-bridged lactone moiety,4 is the first biscembranoid comprising an uncommon oxetane ring,and 5 represents the first 36-peroxyl biscembranoid.Ximaolides Ⅰ(2),K(4) and F(9) exhibited interesting anti-inflammatory activity by the inhibition of LPS-induced TNF-α protein release in RAW264.7 macrophages.
基金supported by the National Science & Technology Major Project (No 2009ZX09301-001)Natural Science Foundation of China (Nos 21072204, 30730108 and 20721003)+3 种基金Science Foundation for the Excellent Youth Scholars of Shanghai (No ssc09001)STCSM International Cooperation Project between SIMM/China and ICB/Italy (No 10540702900)NSFC-TRF International Cooperation Project (No 20911140471)the CAS Key Project (grant KSCX2-YW-R-18)~~
文摘目的:研究扭曲肉芝软珊瑚的化学成分。方法:综合利用各种层析方法分离和纯化化合物, 并利用光谱学和理化性质来鉴定化合物结构。结果:从中分离得到5个化合物, 分别鉴定为 brassicolide (1), emblide (2),methyl tortuoate A (3), methyl tortuoate B (4), (24S)-24-methylcholestane-1,3, 5, 6, 25-pentol 25-monoacetate (5)。结论:化合物1,2和5都是首次从该珊瑚中分离得到。
