[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an N-acylsphinganine-1-phosphoethanolamine zwitterion in which the N-acyl group is specified as hexadecanoyl. It is functionally related to a N-hexadecanoylsphinganine. It is a tautomer of a N-hexadecanoylsphinganine-1-phosphoethanolamine."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch2][Ring2][Branch1][C@H1][Branch1][=C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C][NH3+1][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O]"}]