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.
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