title: Two phthalide dimers from the radix of Angelica sinensis.
abstract: The phytochemical investigation of extracts from the radix of Angelica sinensis yielded a new phthalide dimer, 3,3'Z-6.7',7.6'-diligustilide, along with a known dimer, levistolide A. Their structures were established on the basis of spectral data, particularly using 1D-NMR and several 2D shift-correlated NMR pulse sequences (¹H-¹H COSY, HSQC, HMBC and NOESY).
authors.affiliation: College of Pharmaceutical Science, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, P.R. China.
authors.forename: Xing-Nuo
authors.initials: XN
authors.lastname: Li
authors.forename: Yuan-Yi
authors.initials: YY
authors.lastname: Chen
authors.forename: Dong-Ping
authors.initials: DP
authors.lastname: Cheng
authors.forename: Sheng-Qiang
authors.initials: SQ
authors.lastname: Tong
authors.forename: Hai-Bin
authors.initials: HB
authors.lastname: Qu
authors.forename: Ji-Zhong
authors.initials: JZ
authors.lastname: Yan
mesh_terms: D029971:Angelica sinensis / Q000737:chemistry*; D001572:Benzofurans / Q000737:chemistry*; D019281:Dimerization; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D001572:Benzofurans; C523615:levistolide A; C082022:phthalide