宁夏野生植物老瓜头生物碱的化学成份研究

目的：对老瓜头植物的生物碱组份进行分离，并逐一分离成单一成分进行化学结构测定。方法：运用化学分离方法分离生物碱组份，并进一步通过液相色谱将生物碱分离成单体，并使用IR、MS、UV、H'NMR等对其化学结构进行鉴定。结果：从老瓜头植物中分离得到了4个生物碱单体，确定了其中2个生物碱的化学结构，另外2个生物碱确定了其骨架结构，并用四圆X光衍射仪对其中1个生物碱单晶进行分析，证实了这一生物碱的化学分子空间结构。结论：为综合开发老瓜头这一植物资源提供了理论依据。

Study on Alkaloids of Cynanchum Komarrivii AI Iljiniski Widely Grown in Ningxia

Objective: To separate and ascertain chemically the structures of alkaloids extracted from Cynanchum Komarrivii AI Iljiniski(CKAI) widely grown in Ningxia. Methods: Single ingredient of total alkaloids was separated by liquid chromatography and chemical structure of individual alkaloid was determined using IR spectrum, UV spectrum, H-NMR,MS and CA(X-RAY) D4 techniques. Results: After being separated and assayed, four alkaloids were obtained, two of them were ascertained in terms of skeleton structure'two others ascertained in terms of chemical structural formula and one out of the twos was defined at spatial configuration level.Conclusion: This study has offered the elementary basis for further comprehensive exploitage and utilization of CKAI.