[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a sphingolipid that is the N-dodecanoyl (lauroyl) derivative of L-erythro-sphingosine. It is functionally related to a dodecanoic acid and a L-erythro-sphingosine."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C@@H1][Branch2][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][O][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][O]"}]