[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 13S-HOTrE arising from deprotonation of the carboxylic acid function; major species at pH 7.3. It is a long-chain fatty acid anion and a hydroxy polyunsaturated fatty acid anion. It is a conjugate base of a 13(S)-HOTrE."}, {"from": "gpt", "value": "[C][C][/C][=C][\\C][C@@H1][Branch1][P][/C][=C][/C][=C][\\C][C][C][C][C][C][C][C][=Branch1][C][=O][O-1][O]"}]