目的研究抗癌药物黄药子Dioscorea bulbifera的芪类化学成分。方法采用硅胶柱色谱、ODS、Sephadex LH-20柱色谱以及HPLC制备方法进行分离纯化,通过理化性质及波谱数据分析鉴定了化合物的结构。结果从黄药子95%乙醇提取物的醋酸乙酯萃取部位中分离得到14个芪类化合物,分别鉴定为2,7-二羟基-3,4-二甲氧基-9,10-二氢菲(1)、2,5-二羟基-4-甲氧基-9,10-二氢菲(2)、latifolin(3)、2’,3-二羟基-4,5-二甲氧基联苄(4)、4-甲氧基菲-2,3,7-三醇(5)、3,7-二羟基-2,4-二甲氧基菲(6)、2’,3-二羟基.5.甲氧基联苄(7)、3,4’,5-三羟基-3’-甲氧基联苄(8)、7-羟基-2,3,4-三甲氧基菲(9)、3,3’-二羟基-5-甲氧基联苄(10)、2,7-二羟基-4-甲氧基-9,10-二氢菲(11)、2,7-二羟基-3,4-二甲氧基菲(11)、2,7-二羟基-2,4-二甲氧基-9,10-二氢菲(13)、4,7-二羟基-2-甲氧基-9,10-二氢菲(14)。结论化合物1~3、5~7、9、12、14均为首次从该植物中分离得到。
Objective To study the stilbenoids from the rhizomes ofDioscorea bulbifera. Methods The compounds were isolated and purified by chromatography on silica gel, ODS, Sephadex LH-20 columns and HPLC methods. Their structures were determined by means of physicochemical properties and spectral data analyses. Results Fourteen stilbenoids were isolated from the EtOAC partitioned fraction of 95% EtOH extract in D. bulbifera. They were identified as 2, 7-dihyoxy-3, 4-dimethoxy-9, 10- dihydrophenanthrene (1), 2, 5-dihydroxy-4-methoxy-9, 10-dihydroxyphenanthrene (2), latifolin (3), 2',3-dihydroxy-4, 5- dimethoxy-bibenzyl (4), 4-methoxyphenanthrene-2, 3, 7-triol (5), 3, 7-dihydroxy-2, 4-dimethoxyphenanthrene (6), 2', 3-dihydroxy- 5-methoxybibenzyl (7), 3, 4', 5-trihydroxy-3'-methoxybibenzyl (8), 7-hydroxy-2, 3, 4-trimethoxyphenanthrene (9), 3', 3'-dihydroxy- 5-methoxybibenzyl (10), 2, 7-dihydroxy-4-methoxy-9, 10-dihydroxyphenanthrene (11), 2, 7-dihydroxy-3, 4-dimethoxyphenanthrene (12), 2, 7-dihydoxy-2, 4-dimethoxy-9, 10-dihydrophenanthrene (13), and 4, 7-dihydroxy-2-methoxy-9, 10-dihydrophenanthrene (14). Conclusion Compounds 1--3, 5--7, 9, 12, and 14 are isolated from the rhizomes ofD. bulbifera for the first time.