On the isolation of 2‐hydroxydocosanoic and 2‐hydroxytricosanoic acids from the marine spongeAmphimedon compressa

Abstract
The first α-hydroxy fatty acids from a marine sponge, namely 2-hydroxydocosanoic and 2-hydroxytricosanoic, were identified in the Caribbean spongeAmphimedon compressa. These acids were found to occur in phosphatidylethanolamine and phosphatidylserine and constituted 52% of the total fatty acid mixture of this sponge. The long chain fatty acids 5,9,23-nonacosatrienoic (29∶3) and 5,9,23-tricontatrienoic (30∶3), as well as a new tetratricontatetraenoic (34∶4) acid, were also found inA. compressa.