摘要:
Five new chromone C-glycosides have been obtained from the leaves of Baeckea frutescens. They are: 6-beta-C-glucopyranosyl-5,7-dihydroxy-2-isopropylchromone, 8-beta-C-glucopyranosyl-5,7-dihydroxy-2-isopropylchromone, 6-beta-C-glucopyranosyl-5,7-dihydroxy-2-methylchromone, 6-beta-C-(2'-galloylglucopyranosyl)-5,7-djhydroxy-2-isopropylchromone and 8-beta-C-(2'-galloylglucopyranosyl)-5,7-dihydroxy-2-isopropylchromone. (C) 1998 Elsevier Science Ltd. All rights reserved.