Department of Pharmacognosy and the National Center for Natural Products Research (NCNPR), School of Pharmacy, The University of Mississippi, University, Mississippi 38677, USA.
J Nat Prod. 2010 Mar 26;73(3):383-7. doi: 10.1021/np900281r.
Bioassay- and LC-MS-guided fractionation of a methanol extract from a new deep-water Alaskan sponge species of the genus Latrunculia resulted in the isolation of two new brominated pyrroloiminoquinones, dihydrodiscorhabdin B and discorhabdin Y (2), along with six known pyrroloiminoquinone alkaloids, discorhabdins A (3), C (4), E (5), and L (6), dihydrodiscorhabdin C (7), and the benzene derivative 8. Compounds 3, 4, and 7 exhibited anti-HCV activity, antimalarial activity, and selective antimicrobial activity. Although compounds 3 and 7 displayed potent and selective in vitro antiprotozoal activity, Plasmodium berghei-infected mice did not respond to these metabolites due to their toxicity in vivo.
从一种新的阿拉斯加深海海绵属拉特朗库利阿(Latrunculia)物种的甲醇提取物中进行生物测定和 LC-MS 引导的分段,分离得到两种新的溴化吡咯并 iminoquinone,二氢 discorhabdin B 和 discorhabdin Y(2),以及六种已知的吡咯并 iminoquinone 生物碱,discorhabdins A(3)、C(4)、E(5)和 L(6),二氢 discorhabdin C(7)和苯衍生物 8。化合物 3、4 和 7 表现出抗 HCV 活性、抗疟原虫活性和选择性抗菌活性。尽管化合物 3 和 7 表现出强大和选择性的体外抗原生动物活性,但感染疟原虫伯氏疟原虫(Plasmodium berghei)的小鼠对这些代谢物没有反应,因为它们在体内的毒性。