Marine Prostaglandins

The chapter deals with the prostanoids of marine organisms. The isolation and characterization of (15R)-PGA₂, methyl ester acetate of (15R)-PGA₂; PGE₂; 13-14-cis-PGA₂-15-acetate; 13,14-dihydro-PGA₂; PGF₂; 5-trans PGA₂; PGF₂ -9-O-acetate methyl ester from Caribbean soft coral Plexaura homomalla (Esper); chlorovolones; clavulones; claviridenones and C-20 acetoxy clavulones from stolonifer Clavularia viridis Quoy and Gaimara, a soft coral from Okinawa, Japan; methyl-11-acetoxy, 9,15-(S)-hydroxy-5-cis-12-trans-prostadienoate; methyl-11,18-diacetoxy-9,15-(S)-hydroxy-5-cis,13-trans prostadienoate, and the corresponding acetate and diacetate of free acids from Lobophyton depressum, a soft coral collected in the Gulf of Eilat (The Red Sea); unusual prostanoids, punaglandins from the octocoral Telesto riisei and PGF₂ and PGE₂ from the marine red alga Gracilaria lichermids from West Head, Victoria, Australia have been discussed.