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[Study on the coumarin glucosides of Angelica dahurica]
Hao Sun1, Xing-Zeng Zhao, Xiao-Dong Jia
1Jiangsu Center for Research & Development of Medicinal Plants, Jiangsu Institute of Botany, CAS Nanjing Botanical Garden Mem. Sun Yat-Sen., Nanjing 210014, China.
Objective:
To study the coumarin glucosides of Angelica dahurica.
Methods:
Fresh roots and rhizomes of Angelica dahurica were extracted with ethanol at room temperature. Repeated column chromatography and preparative HPLC were used to isolate and purify the compounds. Their structures were elucidated on the basis of chemical evidence and spectral analysis.
Results:
Twenty-six coumarin glucosides were isolated from Angelica dahurica, while here we reported 7 of them: sec.-O-beta-D-Galactopyranosyl-(R)-byakangelicin (I);8-O-beta-D-Galactopyranosyl-xanthotoxol (II); 7-O-beta-D-Apiofuranosyl-(1-->6)-beta-D-Glucopyranosyl-peucedanol (III); (R)-peucedanol-7-O-beta-D-Glucopyranoside (IV); sec.-O-beta-D-Glucopyranosyl-(R)-Oxypeucedaninhydrate (V); 7-O-beta-D-Galactopyranosyl-Sco-poletin( VI); Aesculin (VII).
Conclusion:
Compound V is a new compound, Compound VII is isolated from Umbellifera for the first time, compounds III, IV are isolated from Angelica for the first time,while compound I, II and VI are isolated from this plant for the first time.