[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@@H1][Branch1][N][C@H1][Branch1][Ring1][C][O][N][C][=Branch1][C][=O][C][O]"}, {"from": "gpt", "value": "The molecule is a derivative of sphingosine, with potential antineoplastic activity. As a sphingosine derivative, cedefingol appears to inhibit protein kinase C (PKC), a kinase that plays an important role in tumorigenesis."}]