title: Hippuristerones E-I, new polyoxygenated steroids from the gorgonian coral Isis hippuris.
abstract: Five novel (22R,23S,24S)-steroids, hippuristerones E-I (1-5), have been isolated from the gorgonian coral Isis hippuris. The structures of steroids 1-5 were deduced by extensive 1D and 2D NMR studies ((1)H, (13)C, (1)H-(1)H COSY, HMQC, HMBC, and NOESY experiments). The structure of 1 was further supported by molecular mechanics calculations.
authors.affiliation: Department of Marine Resources, National Sun Yat-Sen University, Kaohsiung 804, Taiwan, Republic of China. sheu@mail.nsysu.edu.tw
authors.forename: Jyh-Horng
authors.initials: JH
authors.lastname: Sheu
authors.forename: Long-Fei
authors.initials: LF
authors.lastname: Huang
authors.forename: Shin-Pin
authors.initials: SP
authors.lastname: Chen
authors.forename: Yi-Lea
authors.initials: YL
authors.lastname: Yang
authors.forename: Ping-Jyun
authors.initials: PJ
authors.lastname: Sung
authors.forename: Guey-Horng
authors.initials: GH
authors.lastname: Wang
authors.forename: Jui-Hsin
authors.initials: JH
authors.lastname: Su
authors.forename: Chih-Hua
authors.initials: CH
authors.lastname: Chao
authors.forename: Wan-Ping
authors.initials: WP
authors.lastname: Hu
authors.forename: Jeh-Jeng
authors.initials: JJ
authors.lastname: Wang
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010100:Oxygen / Q000737:chemistry; D013256:Steroids / Q000737:chemistry* / Q000302:isolation & purification*; D013624:Taiwan
chemical_list: D013256:Steroids; D010100:Oxygen