臭牡丹的化学成分研究

Studies on chemical constituents of Clerodendrum bungei

研究臭牡丹Clerodendrum bungei的化学成分。采用硅胶,Sephadex LH-20,MCI,ODS和半制备HPLC等色谱技术,从臭牡丹95%乙醇提取物中分离得到10个化合物,分别鉴定为11,12,16S-trihydroxy-7-oxo-17(15→16),18(4→3)-diabeo-abieta-3,8,11,13-tetraen-18-oic acid(1),12 S*,13R*-dihydroxy-9-oxo-octadeca-10(E)-enoic acid(2),赪桐苷A(3),trichotomoside(4),山橘脂酸(5),4'-O-methylscutellarein(6),neroplomacrol(7),butylitaconic acid(8),hexylitaconic acid(9),对羟基苯甲酸(10)。化合物1和2为新天然产物,化合物7~10为首次从该属植物中分离得到,化合物为3,5,6首次从该植物中分离得到。

Ten compounds were isolated from the 95% aqueous EtOH extract of Clerodendrum bungei by a combination of various chromatographic techniques including column chromatography over silica gel, Sephadex LH-20, MCI, ODS, and semi-preparative HPLC. Their structures were elucidated as 11,12,16S-trihydroxy-7-oxo-17（15→16）,18（4→3）-diabeo-abieta-3,8,11,13-tetraen-18-oic acid （1）, 12S＊,13R＊-dihydroxy-9-oxo-octadeca-10（E）-enoic acid （2）, clerodenoside A （3）, trichotomoside （4）, glycosmisic acid （5）, 4＇-O-methylscutellarein （6）, neroplomacrol （7）, butylitaconic acid （8）, hexylitaconic acid （9）, p-hydroxybenzonic acid （10） by their physicochemical properties and spectroscopic data. Compounds 1 and 2 are new natural products, while compounds 7-10 were obtained from the genus Clerodendrum for the first time, and compounds 3, 5, 6 were isolated from this plant for the first time.