A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-（1 → 3）-β-D-xylopyra- nosyl-（1→4）-α-L-rhamnopyranosyl-（1 → 2）-α-L-arabinopyra-nosyl ester, was isolated fro...A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-（1 → 3）-β-D-xylopyra- nosyl-（1→4）-α-L-rhamnopyranosyl-（1 → 2）-α-L-arabinopyra-nosyl ester, was isolated from the roots of Platycodon grandiflorum, together with three known saponins, including platycodin D, deapio platycoside E and platycoside E. The structure of the new compound, named 16-oxo-platycodin D, was elucidated on the basis of spectroscopic data.展开更多
文摘A new triterpenoid saponin, 3-O-β-D-glucopyranosyl 16-oxo-platycodigenin 28-O-β-D-apiofuranosyl-（1 → 3）-β-D-xylopyra- nosyl-（1→4）-α-L-rhamnopyranosyl-（1 → 2）-α-L-arabinopyra-nosyl ester, was isolated from the roots of Platycodon grandiflorum, together with three known saponins, including platycodin D, deapio platycoside E and platycoside E. The structure of the new compound, named 16-oxo-platycodin D, was elucidated on the basis of spectroscopic data.
文摘目的:建立桔梗地上部分桔梗皂苷 D 的测定方法。方法:采用反相高效液相色谱法,以 Hypersil ODS2色谱柱(150 mm×4.6 mm,5μxm),乙腈-水为流动相,梯度洗脱,流速1.0 mL·min^(-1),检测波长210 nm,柱温20℃,以外标法检测。结果:桔梗皂苷 D 进样量在0.8～6.4μg范围内呈良好线性关系,平均回收率(n=5)为97.8%。结论:本方法准确可靠,可作为桔梗地上部分桔梗皂苷 D 的质量控制依据。
