[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an organic cation obtained via selective monoprotonation of the piperazine ring of GR 127935. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of a GR 127935."}, {"from": "gpt", "value": "[C][C][=C][Branch2][Ring1][Ring1][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=N][O][C][=Branch1][Ring2][=N][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=C][C][=Branch1][#Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][N][C][C][NH1+1][Branch1][Branch1][C][C][Ring1][=Branch1][C]"}]