Hyrtiosenolides A and B, Two New Sesquiterpene γ-Methoxybutenolides and a New Sterol from a Red Sea Sponge Hyrtios Species

Hyrtiosenolides A and B, Two New Sesquiterpene γ-Methoxybutenolides and a New Sterol from a Red Sea Sponge <i>Hyrtios</i> Species Salmahyrtisol A, a Novel Cytotoxic Sesterterpene from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>recta</i> Hyrtioerectines A−C, Cytotoxic Alkaloids from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>rectus</i> Hyrtioerectines A−C, Cytotoxic Alkaloids from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>rectus</i> Three New Cytotoxic Sesterterpenes from the Marine Sponge <i>Hyrtios</i> cf. <i>erectus</i> Antimycobacterial Scalarane-Based Sesterterpenes from the Red Sea Sponge <i>Hyrtios </i><i>e</i><i>recta</i> Bioactive Compounds from the Red Sea Marine Sponge Hyrtios Species Hyrtioseragamines A and B, New Alkaloids from the Sponge Hyrtios Species Antineoplastic Agents. 386. Isolation of Sesterstatins 1−3 from the Marine Sponge <i>Hyrtios </i><i>e</i><i>recta</i>^1† Three New Scalarane Sesterterpenoids from the Okinawan Sponge <i>Hyrtios</i> <i>erectus</i>