研究龍血竭二氯甲烷提取部位中黃烷和高異黃烷類成分。方法 利用硅膠、聚酰胺柱色譜及反復(fù)重結(jié)晶等方法進(jìn)行分離純化，根據(jù)理化性質(zhì)和波譜分析對(duì)分離得到的化合物進(jìn)行結(jié)構(gòu)鑒定。結(jié)果 分離得到6個(gè)化合物，分別鑒定為7-羥基-4′-甲氧基黃烷（1）、4′-羥基-7-甲氧基-8-甲基黃烷（2）、5,4′-二羥基-7-甲氧基-6-甲基黃烷（3）、7,4′-二羥基高異黃烷（4）、6,4′-二羥基-7-甲氧基高異黃烷（5）和10-羥基-11-甲氧基龍血酮（6）。結(jié)論 化合物6為首次從劍葉龍血樹中分離得到，化合物2為首次從龍血竭中分離得到。

Objective To study the flavanes and homoisoflavanes from dichloromethane fraction in Chinese dragon’s blood. Methods The compounds were isolated by chromatography on silica gel, polyamide column and recrystallization and the chemical structures were identified on the basis of physico-chemical constants and spectral analyses. Results Six compounds were obtained and their structures were identified as 7-hydroxy-4′-methoxy flavane (1), 4′-hydroxy-7-methoxy-8-methylflavane (2), 5,4′-dihydroxy-7- methoxy-6-methyl flavane (3), 7,4′-dihydroxy-homoisoflavane(4), 6,4′-dihydroxy-7-methoxyhomoisoflavane (5), and 10-hydroxy- 11-methoxydracaenone (6). Conclusions Compound 6 is isolated from the plant for the first time and compound 2 is isolated from Chinese dragon’s blood for the first time.

國(guó)家自然科學(xué)基金資助項(xiàng)目（81173531）