[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a neuropeptide consisting of 11-amino acids. It preferentially activates neurokinin-1 receptors, exterting excitatory effects on central and peripheral neurons and involved in pain transmission. It has a role as a neurotransmitter, a vasodilator agent and a neurokinin-1 receptor agonist. It is a conjugate base of a substance P(3+)."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C@@H1][Branch2][Ring1][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch1][C][C][S][C][C][=Branch1][C][=O][N][N][C][=Branch1][C][=O][C][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][N][N][C][=Branch1][C][=O][C@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][N][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Branch1][=Branch1][C][C][C][C][N][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@H1][Branch1][#Branch2][C][C][C][N][=C][Branch1][C][N][N][N]"}]