title: Dichotenone-a and -b: two new enones from the marine brown alga Dictyota dichotoma (Hudson) Lamour.
abstract: Marine brown alga Dictyota dichotoma (Dictyotaceae) collected from Karachi coast of Arabian Sea yielded two new (1 and 2) enones (dolastane-diterpenoids) named: dichotenone-A and -B along with an olide (loliolide, 3) as a new source. Their structures have been characterized with the aid of 2D-NMR spectroscopic techniques.
authors.affiliation: H.E.J. Research Institute of Chemistry, University of Karachi, Karachi-75270, Pakistan.
authors.forename: Muhammad Shaiq
authors.initials: MS
authors.lastname: Ali
authors.forename: Muhammad Kashif
authors.initials: MK
authors.lastname: Pervez
authors.forename: Muhammad
authors.initials: M
authors.lastname: Saleem
authors.forename: Farman
authors.initials: F
authors.lastname: Ahmed
mesh_terms: D004224:Diterpenes / Q000032:analysis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D000459:Phaeophyceae / Q000737:chemistry*
chemical_list: D004224:Diterpenes; C478832:dichotenone-A; C478833:dichotenone-B