[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an organic cation obtained by protonation of the tertiary amino function of sumatriptan. It is an ammonium ion derivative and an organic cation. It is a conjugate base of a sumatriptan."}, {"from": "gpt", "value": "[C][N][S][=Branch1][C][=O][=Branch1][C][=O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][=C][Ring1][#Branch1][C][C][NH1+1][Branch1][C][C][C]"}]