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莱菔子为十字花科植物莱菔(Ruphanussativus L.)的种子。是一种常用中药。我院治疗慢性气管炎制剂痰饮丸的组份之一。有关本植物的化学成分,前报报道了从中分得的一个成分β-谷甾醇及一个熔点72—3℃的化合物(结晶Ⅰ)。本报报道晶Ⅰ的结构测定,及另一化合物(晶Ⅲ)的分离提取及结构测定。结晶(Ⅰ)为白色颗粒状结晶,熔点72—3℃,有机酸反应阳性,红外光谱测定,其主要吸收峰与直链有机酸的吸收峰一致。元素分析:分子式C_(18)H_(36)O_(20)理论值(%)
Radish seed is the seed of the crucifer plant, Ruphanus sativus L. Is a commonly used traditional Chinese medicine. One of the components of our hospital for the treatment of chronic bronchitis preparation wolfberry drink pills. Regarding the chemical composition of the plant, it was previously reported that a component of β-sitosterol and a compound having a melting point of 72 to 3° C. (crystallization I) were isolated from the plant. The newspaper reported the structure of crystal I, and the separation and extraction of another compound (crystal III) and the determination of the structure. Crystallization (I) is a white granular crystal with a melting point of 72–3°C. The organic acid reacts positively. The main absorption peak is the same as the absorption peak of the linear organic acid in the infrared spectrum. Elemental Analysis: Molecular Formula C_(18)H_(36)O_(20) Theoretical Value (%)