[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is a tetracarboxylic acid that is an optically active twelve-membered tetraazamacrocycle having a carboxymethyl group attached to each of the nitrogens and a 4-nitrobenzyl group at the 2-position. It has a role as an epitope. It is an azamacrocycle, a tetracarboxylic acid and a C-nitro compound. It is functionally related to a DOTA."}, {"from": "gpt", "value": "[C][C][N][Branch2][Branch1][=Branch1][C][C][N][Branch2][Ring2][#Branch2][C@H1][Branch2][Ring1][=Branch1][C][N][Branch1][N][C][C][N][Ring1][N][C][C][=Branch1][C][=O][O][C][C][=Branch1][C][=O][O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][C][C][=Branch1][C][=O][O][C][C][=Branch1][C][=O][O]"}]