The isolation and identification of a new lignanoside from Selaginella tamariscina (Beauv.) Spring

AimTo study the chemical constituents of Selaginella tamariscina (Beauv.) Spring. MethodsThe compounds were isolated and purified by macroporous adsorption resin, Sephadex LH-20 and silica gel column chromatography and identified on the basis of their physicochemical and spectral data. ResultsFour compounds were obtained from the n-BuOH fraction of 70% acetone extracts. Their structures were elucidated as (7S,8r)-7,8-dihydro-7-(4- hydroxy-3,5- dimethoxyphenyl)-8-hydroxy-methyl-［1′-(7′-hydroxyethyl) -5′ methoxyl］benzofuran-4-O-β-D-glucopyranoside (tamariscinoside C, I), D-mannitol (II), tyrosine (III), shikimic acid (IV). ConclusionCompound I is a new compound, compounds II and III were obtained from the genius for the first time, compound IV was yielded from the plant for the first time.