毛红椿枝叶化学成分及其抗肿瘤活性研究

Chemical constituents from the branches and leaves of Toona ciliata var pubescens and their antitumor activities

目的研究毛红椿枝叶化学成分及其抗肿瘤活性。方法采用硅胶、RP-18反相硅胶、Sephadex LH-20及半制备HPLC进行分离纯化,根据理化性质及波谱数据鉴定所得化合物的结构。采用MTT法测定其抗肿瘤活性。结果从中分离得到15个化合物,分别鉴定为toonaolide D(1)、toonaciliatin E(2)、bourjotinolone A(3)、(21 R,23R)-epoxy-21α-ethoxy-24 S,25-dihydroxyapotirucalla-7-en-3-one(4)、(Z)-toonasterone C(5)、(E)-toonasterone C(6)、3-epi-dyscusin C(7)、(Z)-aglawone(3)(8)、(E)-volkendousin(9)、8(14),15-isopimaradiene-2α,3α,19-triol(10)、(-)-loliolide(11)、cyclohexenone(12)、pubinernoid A(13)、山柰酚-3-O-α-L-鼠李糖苷(14),5-羟甲基-2-呋喃甲醛(15)。化合物3、4对K562细胞的IC 50值分别为54.2、47.3μmol/L,对HEL细胞的IC 50值分别为47.3、61.1μmol/L。结论化合物4、7、10、11为首次从楝科植物中分离得到,化合物2、15为首次从该植物中分离得到。化合物3和4具有较弱的抗肿瘤活性。

AIM To study the chemical constituents from the branches and leaves of Toona ciliata Roem.var.pubescens(Franch.)Hand-Mazz.and their antitumor activities.METHODS The compounds were isolated and purified by silica gel,RP-18 reverse phase silica gel and semi-preparative HPLC,the structures of compounds were identified by physicochemical properties and spectral data.The antitumor activities were determined by MTT method.RESULTS Fifteen compounds were isolated and identified as toonaolide D(1),toonaciliatin E(2),bourjotinolone A(3),(21 R,23R)-epoxy-21α-ethoxy-24 S,25-dihydroxyapotirucalla-7-en-3-one(4),(Z)-toonasterone C(5),(E)-toonasterone(6),3-epi-dyscusin C(7),(Z)-aglawone(8),(E)-volkendousin(9),8(14),15-isopimaradiene-2α,3α,19-triol(10),(-)-loliolide(11),cyclohexenone(12),pubinernoid A(13),quercetin-3-O-(4″-methoxy)-α-L-rahmnopyranosyl(14),5-hydroxymethyl-2-furancarboxaldehyde(15).The IC 50 values of compounds 3 and 4 on K562 cells were 54.2 and 47.3μmol/L,respectively,and the IC 50 values on HEL cells were 47.3 and 61.1μmol/L,respectively.CONCLUTION Compounds 4,7,10 and 11 are isolated from Toona genus for the first time,and compounds 2,15 are first isolated from this plant.Compounds 3 and 4 show weak antitumor activities.