ABSTRACT
AIM To study the chemical constituents from Securidaca inappendiculata Hassk..METHODS The dichloromethane and ethyl acetate fractions of S.inappendiculata 95％ ethanol extract were isolated and purified by silica,gel column and recrystallization,then the structures of obtained compounds were identified by physicochemical properties and spectral data.RESULTS Ten compounds were isolated and identified as 8-hydroxy-1,3,4-trimethoxyxanthone (1),1,2,7-trimethoxyxanth-one (2),4-hydroxy-3,5-dimethoxybenzaldehyde (3),sesamin (4),2-methoxy-3,4-methylenedioxybenzophenone (5),1,3,7-trihydroxy-4-methoxyxanthone (6),1,3,7-t-rihydroxy-2-methoxyxanthone (7),2-hydroxy-1,7-dimethoxyxanthone (8),3,8-dih-ydroxy-1,4-dimethoxyxanthone (9),oα-spinasterol (10).CONCLUSION Compound 1 is first found in the form of natural product,compounds 2-4 are isolated from genus Securidaca for the first time.
ABSTRACT
The thought mainstream of contemporary medical students is steady and healthy,positive and upward,but there still exists some morality-degradating phenomena,such as indifferent service,weaking responsibility,etc.Therefore,the introduction course of Mao Zedong thought should bring its educational fuction into full use,publicize the revolutionary humanitarianism,and cultivate medical students'noble moral realm to prodce qualified constructor and successor for the socialist hearth care industry.