Novel eremophilane sesquiterpenoids with immunosuppressive activity isolated from Parasenecio albus

Plants of the genus Parasenecio have long been used in traditional Chinese medicine for invigorating the circulation of blood, relieving rheumatic ache, and for the treatment of injures from falls. Previous phytochemical investigations on Parasenecio species demonstrate that sesquiterpenes, especially the eremophilanes, are their characteristic components. Parasenecio albus (P. albus), mainly distributed in the southwest of China, has been used as a folk medicine for heat-clearing and detoxifying therapy.   

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