[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a tunaxanthin that consists of epsilon,epsilon-carotene bearing hydroxy substituents at positions 3 and 3' (the 3S,3'S,6S,6'S-diastereomer)."}, {"from": "gpt", "value": "[C][C][=C][C@@H1][Branch2][Branch1][P][C][C][Branch2][Branch1][Branch2][C@H1][Ring1][=Branch1][/C][=C][/C][=Branch2][Ring2][=C][=C][/C][=C][/C][=Branch2][Ring2][=Branch1][=C][/C][=C][/C][=C][Branch2][Ring1][=N][/C][=C][/C][=C][Branch2][Ring1][Branch1][/C][=C][/C@@H1][C][Branch1][O][C][C@H1][Branch1][=Branch1][C][=C][Ring1][=Branch1][C][O][Branch1][C][C][C][\\C][\\C][/C][/C][Branch1][C][C][C][O]"}]