Study on Chemical Components of Swertia nervosa / 中国药房

ABSTRACT

OBJECTIVE:To study the chemical components of Swertia nervosa. METHODS:Silica gel column chromatogra-phy was used for purification and analysis of compounds’structure based on physicochemical properties and spectral data. RE-SULTS:Five compounds were isolated and identified in petroleum ether portion of S. nervosa,involving 1-hydroxy-3,7,8-trime-thoxyxanthone (1),1,8-dihydroxy-3,7-dimethoxyxanthone (2),1,8-dihydroxy-3,5-dimethoxyxanthone(3),1-hydroxy-3,5-dime-thoxyxanthone(4)and β-sitosterol(5). CONCLUSIONS:Compound 1,3 and 4 are isolated from S. nervosa for the first time,and the study has laid a foundation for the quality evaluation of S. nervosa.