A new dimeric psoralen-type furanocoumarin, notopterol-（18-O-20＇）-notopol （1）, was isolated from Notopterygium incisum for the first time and its structure was elucidated by spectroscopic methods.
＜正＞High-throughput natural product chemistry methods have been applied to the generation and analysis of large...
Jin-Feng HU Department of Natural Products for Chemical Genetic Research Key Laboratory of Brain Functional Genomics,Ministry of Education East China Normal University,3663 Zhongshan Road N,Shanghai 200062
A new isopimarane-type diterpene （liwariverol, 1） and eight known compounds were isolated and characterized from the EtOAc extract of the whole plant of Potamogeton crispus. The structure of 1 was elucidated to be 17-hydroxy-8c^H-isopimara-9（11）,15- diene by means of spectroscopic methods. Among the isolates, crenulatoside A （2）, an acyclic sesquiterpene glycoside, was found to have anti-oxidative activity with enhancement of the expression of the NAD（P）H：quinone oxidoreductase 1 （NQO1） in human neuroblastoma SH-SY5Y cells at 100 μmol/L after a 24-h incubation.
Miao YeJun Zhi MaJuan XiongShu Ting LiuDong WangChong Gang YuanJi Yan MaJin Feng Hu
