Isolation and structural identification of chemical constituents from Selaginella tamariscina (Beauv.)Spring

Aim To study the chemical constituents of the water extracts of Selaginella tamariscina (Beauv.) Spring. Methods Various chromatographic techniques were used to separate and purify the constituents. Their physico chemical properties and spectral data were used to elucidate the structures. Results Nine compounds were isolated and identified as (2 R ,3 S ) dihydro 2 (3′,5′ dimethoxy 4′ hydroxyphenyl) 7 methoxy 5 acetyl benzofuran (1), 3 hydroxy phenpropionic acid (2′ methoxy 4′ carboxy phenol) ester (tamariscina ester A, 2), sygringaresinol (3), 1 (4′ hydroxyl 3′ methoxyphenyl)glycerol (4), ferulic acid (5), caffeic acid (6), vanillic acid (7), syringic acid (8), and umbelliferone (9). Conclusion Compound 1 and 2 are new compounds, and the others were isolated from Selaginella for the first time.