Isolation and Structures of Hedaols A, B, and C, New Bisnorditerpenes from a Japanese Brown Alga

Isolation and Structures of Hedaols A, B, and C, New Bisnorditerpenes from a Japanese Brown Alga Meroditerpenoids from the Brown Alga <i>Sargassum siliquastrum</i> A spatane diterpene from the brown alga Stoechospermum marginatum Dictyotadimer A, a new dissymmetric bis-diterpene from a brown alga of the genus Dictyota Norsesquiterpenes from the Brown Alga <i>Dictyopteris </i><i>d</i><i>ivaricata</i> A diterpene from the marine brown alga Dictyota bartayresii Cadinane Sesquiterpenes from the Brown Alga <i>Dictyopteris </i><i>d</i><i>ivaricata</i> Chromenes from the Brown Alga <i>Sargassum</i> <i>s</i><i>iliquastrum</i> STRUCTURE OF SARGASSUMLACTAM, A NEW β,γ-UNSATURATED-γ-LACTAM, FROM THE MARINE ALGA <i>SARGASSUM KJELLMANIANUM</i> Cytotoxic and protective DNA damage of three new diterpenoids from the brown alga Dictoyota dichotoma