目的:研究板蓝根的化学成分。方法:采用大孔树脂、硅胶柱层析、Sephadex LH-20和反相C18等柱色谱法进行分离和纯化,通过MS、NMR、COSY及HMBC等波谱数据确定化合物的结构。结果:从板蓝根水部位中分离纯化得到6个化合物,分别鉴定为:2-吡咯烷酮-N-亚甲基-β-D-阿拉伯糖苷(1)、2-氨基-4-喹啉羧酸(2)、水杨酸(3)、尿苷(4)、2,4(1H,3H)-喹唑二酮(5)、3-噻吩甲酸(6)。结论:其中,化合物1为新化合物,化合物1、2、6为首次从该植物中分离得到。
Objective:To study the chemical constituents of Isatis indigotica. Methods:The chemical constituents were isolated and purified by maeroporous resin, silica gel, Sephadex LH-20 and RP-Cls, and identified by MS, NMR, COSY and HMBC. Results:Six compounds were isolated from Isatis indigotica, which identified as 2-yrrolidone-N-methylene-β-D-arabinoside (1) , 2-amine-4-quinolinecar- boxylie acid( 2 ), salicylic acid ( 3 ), uridine ( 4 ), 2,4 ( 1 H, 3H ) -quinazolinedione ( 5 ) and 3-thiophenecarboxylic acid ( 6 ). Conclusion : Compound 1 is a new compound,and compound 1,2 and 6 are obtained from this plant for the first time.