[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a peptide cation that is the conjugate acid of L-Phe-Gly-L-Leu-L-Met-NH2, arising from the protonation of the N-terminal amino group. Major species at pH 7.3. It is a conjugate acid of a L-Phe-Gly-L-Leu-L-Met-NH2."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C][Branch2][Ring1][C][C][=Branch1][C][=O][N][C][Branch1][Branch1][C][C][S][C][C][=Branch1][C][=O][N][N][C][=Branch1][C][=O][C][N][C][=Branch1][C][=O][C][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][NH3+1]"}]