[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a phosphatidylethanolamine 34:0 zwitterion in which the acyl groups at positions 1 and 2 are both specified as heptadecanoyl. It is a tautomer of a 1,2-diheptadecanoyl-sn-glycero-3-phosphoethanolamine."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C@H1][Branch1][=C][C][O][P][=Branch1][C][=O][Branch1][C][O-1][O][C][C][NH3+1][O][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C]"}]