title: Chemical Constituents from the Flowers of Wild Gardenia jasminoides J.Ellis.
abstract: Four new iridoids, 2'-O-(E)-coumaroylshanzhiside (1), 6'-O-(E)-coumaroylshanzhiside (2), 8α-butylgardenoside B (3), 6α-methoxygenipin (4), and one new phenylpropanoid glucoside, 5-(3-hydroxypropyl)-2-methoxyphenyl β-d-glucopyranoside (5), together with sixteen known compounds, were isolated from the edible flowers of wild Gardenia jasminoides J.Ellis. Their chemical structures were characterized by extensive spectroscopic techniques, including 1D- and 2D-NMR, HR-ESI-MS, and CD experiments. The absolute configurations of the new isolates' sugar moiety were assigned by HPLC analysis of the acid hydrolysates. Furthermore, the antioxidant activities of those isolates were preliminarily evaluated by DPPH scavenging experiment. And comparison of1H-NMR spectra for the EtOH extract of G. jasminoides J.Ellis, gardenoside B and geniposide revealed that the flowers of this plant have a considerable content of gardenoside B instead of geniposide in the fruits, indicating different activities and applications in people's daily life.
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Hu
authors.initials: H
authors.lastname: Zhang
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Ning
authors.initials: N
authors.lastname: Feng
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Yan-Tong
authors.initials: YT
authors.lastname: Xu
authors.affiliation: Chinese Medicine Research Center, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Tian-Xiang
authors.initials: TX
authors.lastname: Li
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Xiu-Mei
authors.initials: XM
authors.lastname: Gao
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: College of Pharmacy, Sookmyung Women's University, Cheongpa-ro 47-gil 100, Yongsan-gu, Seoul, 04310, Korea.
authors.forename: Yun Seon
authors.initials: YS
authors.lastname: Song
authors.affiliation: State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Xiannongtan Street, Xicheng District, Beijing, 100050, P. R. China.
authors.forename: Ya-Nan
authors.initials: YN
authors.lastname: Wang
authors.affiliation: Tianjin State Key Laboratory of Modern Chinese Medicine, Tianjin Key Laboratory of Chemistry and Analysis of Traditional Chinese Medicine, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, No. 312 Anshan Xidao Road, Nankai District, Tianjin, 300193, P. R. China.
authors.forename: Hong-Hua
authors.initials: HH
authors.lastname: Wu
mesh_terms: D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology; D035264:Flowers / Q000737:chemistry; D005638:Fruit / Q000737:chemistry; D032062:Gardenia / Q000737:chemistry*; D039823:Iridoids / Q000302:isolation & purification; D015394:Molecular Structure; D010936:Plant Extracts / Q000032:analysis* / Q000737:chemistry; D013057:Spectrum Analysis
chemical_list: D000975:Antioxidants; D039823:Iridoids; D010936:Plant Extracts; C007835:geniposide; C056587:gardenoside
keywords: 
  Gardenia jasminoides
  ; Antioxidant; Gardenia flowers; Iridoids; Phenylpropanoid glucoside