title: Four new phenolic glycosides from Baoyuan decoction.
abstract: Four new phenolic glycosides, including two flavonoid glycosides (1and2) and two lignan glycosides (3and4), were isolated from the traditional Chinese medicine formula, Baoyuan decoction. Their structures were established by detailed analysis of the NMR and HR-ESI-MS spectroscopic data and their absolute configurations were determined by the experimental electronic circular dichroism data as well as chemical methods. Furthermore, the sources of the four new compounds were determined by the UPLC-Qtrap-MS method, which proved that1and2are originated fromGlycyrrhiza uralensis, and3and4are fromCinnamomum cassia.
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Mingbo
authors.initials: M
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Tu
authors.affiliation: State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Jiang
keywords: Baoyuan decoction; Electronic circular    dichroism; Flavonoid glycosides; Lignan glycosides; Traditional Chinese med   icine formula; UPLC–Qtrap-MS