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Naphthoquinones from the Roots of Onosma argentatum Hub.-Mor. (Boraginaceae)
Onosma argentatum natural naphthoquinones shikonin derivatives Boraginaceae 5,8-O-dimethyl acetyl shikonin
2010/4/20
Onosma argentatum Hub.-Mor. is an endemic species growing in Turkey. In this study, the roots of O. argentatum were extracted with n-hexane-dichloromethane (1:1). The extract was separated on a silica...