Phenolic Compounds from Arundina graminifolia and Their Anti-Tobacco Mosaic Virus Activity

Arundina gramnifolia belongs to Orchidaceae family.It is a terrestrial plant extends from India, Nepal, Thailand, Malaysia, Singapore, South China to Indonesia and across the Pacific Islands.The genus is considered to possess activities of detoxification, antiarthritis and abirritation and is used as antidote and demulcent.1 In recent years, several papers have described phytochemistry investigations of A. gramnifolia, and it was found to be rich in stilbenoids and triterpenes.[2][3][4][5] Motivated by a search for bioactive compounds from this plant, further chemical investigation were carried out.As a result, two new phenolic compounds (1-2), together with four known phenols (3-6), were isolated from this plant.In addition, the anti-tobacco mosaic virus activity of compounds 1-6 were evaluated for the first time.This article deals with the isolation, structural elucidation and biological activities of the isolated compounds.