Odookeanynes A and B, Acetylene-Containing Lipopeptides from an Okeania sp. Marine Cyanobacterium.

Odookeanynes A ( 1 ) and B ( 2 ), two acetylene-containing lipopeptides, were isolated from an Okeania sp. marine cyanobacterium collected in Okinawa, Japan. Their structures were elucidated by spectroscopic analysis and Marfey's analysis of acid hydrolysates. Odookeanynes A ( 1 ) and B ( 2 ) dose-dependently promoted the differentiation of mouse 3T3-L1 preadipocytes in the presence of insulin.