白花丹地上部分的化学成分

研究白花丹Plumbago zeylanica L．地上部分的化学成分。应用各种色谱方法分离；用波谱学方法特别是二维核磁共振波谱的方法确定结构。从白花丹地上部分分离鉴定了7个化合物，分别是：1β，3β，11α-trihydroxy-urs-12-ene（1），androsta-1，4-diene-3，17-dione（2），异信浓柿醇酮（3），neoechinulin A（4），harman（5），ergostadiene-3β，5α,6β—triol（6），N-（N-benzoyl-S-phenylalaninyl）-S-phenylalaninol（7）。化合物1为新化合物，化合物2，4-7均为首次从该属植物中分离得到。

Chemical constituents from the aerial parts of Plumbago zeylanica L.

To investigate the chemical constituents from the aerial parts of Plumbago zeylanica L. The chemical constituents were isolated by various column chromatographic methods and the structures were elucidated by various spectroscopic methods, especially 2D- NMR spectra. A new tfiterpenoid, 1β,3β,1 1α-trihydroxy-urs-12-ene （1）, together with six known compounds, androsta-l,4-diene-3,17- dione （2）, isoshinznolone （3）, neoechinulin A （4）, harman （5）, ergostadiene-3β,5α,6β-triol （6） and N-（N＇-benzoyl-S-phenylalaninyl）-S- phenylalaninol （7） were isolated from the aerial parts ofP. zeylanica. Compound 1 was a new compound, and compounds 2, 4-7 were obtained from this genus for the first time.