FLAVONOL GLYCOSIDES FROM LYSIMACHIA-CONGESTIFLORA

Two new flavonol glycosides, larycitrin 3-O-alpha-arahinofuranoside an d syringetin 3-O-alpha-rhamno-pyranosyl(1 --> 5)-alpha-arabinofuranosi de, together with syringetin and six known flavonol glycosides, kaempf erol 3-O-alpha-arabinofuranoside, myricetin 3-rhamnoside and 3-O-arabi nofuranoside, syringetin 3-O-a-arabinofuranoside and 3-rhamnoside, and larycitrin 3-rhamnoside were isolated from the whole plant of Lysimac hia congestiflora. All structures were established on the basis of UV, MS and NMR spectral analyses. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.