RESUMEN
Objective To study the bibenzyls and phenanthrenes from Arundina graminifolia.Methods The compounds were extracted by 95％ alcohol and isolated by column chromatography on silica gel and Sephadex LH-20.Their structures were identified by spectroscopic analysis (1H NMR and13CNMR).Results Eleven compouds were obtained and identified as batatasin Ⅲ (1),arundinanin (2),2,8-dihydroxy-4,7-dimethoxy-9,10-dihydrophenanthrene (3),shancidin (4),arundinan (5),isoshancidin (6),erianthridin (7),lusianthridin (8),eulophiol (9),flavanthrin (10),orchinol (11).Conclusion Compounds 3,7,9 were isolated from this plant for the first time.
RESUMEN
Objective To study the chemical constituents from the flowers of Arundina graminifolia and to find its bioactive compounds.Methods The compounds were extracted by 95％ alcohol and isolated by column chromatography on silica gel and Sephadex LH-20.The structures were identified by spectroscopic analysis (1H NMR,13CNMR and EIMS).Results Eight compounds were obtained and identified as (1) 7-hydroxy-2,4-dimethoxy-9,10-dihydrophenanthrene;(2)coelonin;(3)4,7-dihydroxy-2-methoxy-9,10-dihydro-phenanthrene;(4)ephemeranthoquinone;(5)densiflorol B;(6)4-(3-hydroxyphenyl)-2-butanone;(7) stigmasterol,(8) β-sitosterol.Conclusion Among them,compound 6 is discovered for the first time from the plant.
RESUMEN
Objective: For the purpose of finding new bioactive agents from ethnic medicines, the chemical study on Dai Medicine Arundina graminifolia was carried out. Methods: The chemical constituents in the whole plant of A. graminifolia were isolated by silica gel, MCI-GEL resin, Sephadex LH-20 column chromatography, and high performance liquid chromatography (HPLC) method. Their structures were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. The inhibitory activities of compound 1 against tobaco mosaic virus (TMV) replication were tested using the half-leaf method. Results: Four phenylpropanoids, 6-(3-hydroxypropanoyl)-5-hydroxymethyl-isobenzofuran-1(3H)-one (1), coumaric acid (2), ω-hydroxypropioguaiacone (3), and 3-methoxy-4-hydroxy-propyl alcohol (4) were isolated from the whole plant of A. graminifolia. Conclusion: Compound 1 is isolated from the whole plant of A. graminifolia for the first time. Compound 1 is a new compound named Arundina phenylpropanoid. It is tested for its anti-TMV activities. The results show that compound 1 exhibits the potential anti-TMV activities with the inhibitory rate of 22.6%.