Phytol and glycerol derivatives from the marine green alga Codium iyengarii of the Karachi coast (Arabian Sea)

The ethyl acetate soluble part of a methanolic extract of the marine green alga Codium iyengarii, collected from the Karachi coast of the Arabian Sea, afforded four new derivatives of glycerol named: codioside A,B,C,D (1-4), a new derivative of traps-phytol named codio-ester (5) and traps-phytol (6) . The structures of 1-5 were elucidated with the aid of acid hydrolysis, me thylation, GC-MS, and spectroscopy. The structure of 1 was confirmed throug h the HMBC NMR technique and the structures of compounds 2-4 were based on the assignments made for 1.