A new alkaloid,neodichroine,along with several known alkaloids,a coumarin.a flavanone andvanillin were isolated from leaves of Dichroa febrifuga.Its structure was elucidated by spectral analyses and semi-synthesis fro...A new alkaloid,neodichroine,along with several known alkaloids,a coumarin.a flavanone andvanillin were isolated from leaves of Dichroa febrifuga.Its structure was elucidated by spectral analyses and semi-synthesis from B-dichrone.展开更多
为了解常山(Dichroa febrifuga Lour.)现有产区分布并预测新的产区,本文利用中药材产地适宜性分析地理信息系统TCMGIS(Geographic Information System for Traditional Chinese Medicine)对426个常山样品信息进行了适宜生态因子生长范...为了解常山(Dichroa febrifuga Lour.)现有产区分布并预测新的产区,本文利用中药材产地适宜性分析地理信息系统TCMGIS(Geographic Information System for Traditional Chinese Medicine)对426个常山样品信息进行了适宜生态因子生长范围确认,分析了常山适宜产地空间分布状况。结果显示,常山主要分布于我国温暖湿润的东部季风区,生态相似系数100%区域分布较为集中,总面积达760 640.1 km2,共829个县区,其中广西、云南、广东、湖南分布较多。本研究结果对常山的野生资源保护、人工规范化种植和资源可持续利用具有重要意义。展开更多
文摘A new alkaloid,neodichroine,along with several known alkaloids,a coumarin.a flavanone andvanillin were isolated from leaves of Dichroa febrifuga.Its structure was elucidated by spectral analyses and semi-synthesis from B-dichrone.
文摘为了解常山(Dichroa febrifuga Lour.)现有产区分布并预测新的产区,本文利用中药材产地适宜性分析地理信息系统TCMGIS(Geographic Information System for Traditional Chinese Medicine)对426个常山样品信息进行了适宜生态因子生长范围确认,分析了常山适宜产地空间分布状况。结果显示,常山主要分布于我国温暖湿润的东部季风区,生态相似系数100%区域分布较为集中,总面积达760 640.1 km2,共829个县区,其中广西、云南、广东、湖南分布较多。本研究结果对常山的野生资源保护、人工规范化种植和资源可持续利用具有重要意义。