STUDIES ON THE CONSTITUENTS OF LYSIMACHIA CONGESTIFLORA

AIM: To investigate the chemical constituents from Lysimachia congestiflora Hemsl.. METHODS: Column chromatography was used to separate the chemical constituents. MS, IR,¹HNMR,¹³CNMR (DEPT) and ¹H ¹H COSY were used to determine the structure of the isolated constituents. RESULTS: Seven compounds were identified by spectral analyses as myricetin (1), myricetrin (2), quercetin (3), tamarixetin (4), stigmasterol (5), cyclamiretin D-3-O-β-D xylopyranosyl-(1→2)-β-D-glucopyranosyl-(1→4)-β-D- glucopyranosyl-(1→2)-α-L-arabinopyranoside (6) and lysimachoside (7). CONCLUSION: Compound 7 is a new one. Compounds 4 and 6 were first isolated from the genus of Lysimachia.