[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a 1-alkyl-sn-glycero-3-phosphoethanolamine in which the alkyl group at C-1 is specified as hexadecyl. It is a tautomer of a 1-hexadecyl-sn-glycero-3-phosphoethanolamine zwitterion."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][C][C@H1][Branch1][=C][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][N][O]"}]