Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russian Federation.
J Nat Prod. 2010 Apr 23;73(4):788-91. doi: 10.1021/np1000285.
Four new sesquiterpenoid arenarone derivatives, 18-aminoarenarone (1), 19-aminoarenarone (2), 18-methylaminoarenarone (3), and 19-methylaminoarenarone (4), and the new dimeric popolohuanone F (5), a derivative of 19-aminoarenarone (2) and arenarol (6), have been isolated from the Australian marine sponge Dysidea sp. together with the known compounds arenarol (6) and popolohuanone A (7). The structures of the new compounds 1-5 were established from extensive NMR spectroscopic data. Popolohuanones A (7) and F (5) and arenarol (6) showed DPPH radical scavenging activity with IC(50) values of 35, 35, and 19 microM, respectively.
从澳大利亚海绵 Dysidea sp. 中分离得到了四个新的倍半萜 arenarone 衍生物:18-氨基arenarone(1)、19-氨基arenarone(2)、18-甲基氨基arenarone(3)和 19-甲基氨基arenarone(4),以及新的二聚体 popolohuanone F(5),它是 19-氨基arenarone(2)和 arenarol(6)的衍生物。此外,还从该海绵中分离得到了已知化合物 arenarol(6)和 popolohuanone A(7)。通过对 1-5 号新化合物的广泛 NMR 光谱数据分析,确定了它们的结构。Popolohuanones A(7)、F(5)和 arenarol(6)具有 DPPH 自由基清除活性,其 IC50 值分别为 35、35 和 19 μM。