A novel 3,4-seco-oleanane-type triterpenoid named 3,4-seco-olean-13(18)-ene-12,19-dione-3-oic acid (1), bearing an unusual enedione moiety, was isolated from the aerial parts of Hypericum ascyron, together with a known feiedelane-type triterpenoid friedelin (2). The structure of 1 with absolute configuration was elucidated on the basis of spectroscopic methods and a single-crystal X-ray diffraction analysis. (C) 2015 Elsevier B.V. All rights reserved.
基金：
National Natural Science Foundation of China [31370372, 81202423, 31200258]; New Century Excellent Talents in University, State Education Ministry of China [NCET-2008-0224]; Natural Science Foundation of Hubei Province of China [2012FFB02333]
第一作者单位：[1]Huazhong Univ Sci & Technol, Tongji Med Coll, Sch Pharm, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Peoples R China
通讯作者：
推荐引用方式(GB/T 7714)：
Chen Chunmei,Wei Guangzheng,Zhu Hucheng,et al.A new 3,4-seco-oleanane-type triterpenoid with an unusual enedione moiety from Hypericum ascyron[J].FITOTERAPIA.2015,103:227-230.doi:10.1016/j.fitote.2015.04.009.
APA：
Chen, Chunmei,Wei, Guangzheng,Zhu, Hucheng,Guo, Yi,Li, Xiao-Nian...&Zhang, Yonghui.(2015).A new 3,4-seco-oleanane-type triterpenoid with an unusual enedione moiety from Hypericum ascyron.FITOTERAPIA,103,
MLA：
Chen, Chunmei,et al."A new 3,4-seco-oleanane-type triterpenoid with an unusual enedione moiety from Hypericum ascyron".FITOTERAPIA 103.(2015):227-230
