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目的研究三宝木(Trigonostemon chinensis Merr.)枝条的化学成分。方法采用多种柱色谱技术进行分离纯化,通过理化性质和波谱数据分析鉴定化合物的结构,采用滤纸片琼脂扩散法测定化合物抗菌活性。结果从三宝木枝条乙醇提取物的乙酸乙酯萃取物中分离得到了12个已知化合物,经波谱分析鉴定为松脂醇(1)、(+)-de-4″-O-methylmagnolin(2)、丁香脂素(3)、nitidanin(4)、臭矢菜素A(5)、6-deoxyjacareubin(6)、巴西红厚壳素(7)、豆甾-4,22-二烯-3-酮(8)、3β-羟基豆甾-5-烯-7-酮(9)、豆甾-4-烯-3-酮(10)、正十八酸(11)、β-谷甾醇(12)。结论 12个化合物均为首次从该植物中分离得到,其中,化合物2、4、5、8、9、10是首次从该属植物中分离得到。初步抗菌活性结果表明化合物7对金黄色葡萄球菌、烟草青枯菌具有抑制活性。
Objective To study the chemical constituents of Trigonostemon chinensis Merr. Methods The compounds were separated and purified by a variety of column chromatography. The structures of the compounds were identified by physicochemical properties and spectral data analysis. The antibacterial activity of the compounds was determined by filter paper agar diffusion method. Results Twelve known compounds were isolated from the ethyl acetate extract of ethanol extract of Sambo wood and identified as pinacol (1), (+) - de-4 "-O-methylmagnolin (2) , Melatonin (3), nitidanin (4), melanin A (5), 6-deoxyjacareubin (6) (8), 3β-hydroxystilbene-5-en-7-one (9), stigmaster- ) .CONCLUSION All 12 compounds were isolated from this plant for the first time, of which compounds 2, 4, 5, 8, 9 and 10 were isolated from this genus for the first time.The results of preliminary antibacterial activity show that compound 7 Staphylococcus aureus, R. solanacearum has inhibitory activity.