[{"from": "human", "value": "Write a possible SELFIES of given compound. ->  5-(3-Methyl-2-butenyl)-5-isoPrbarbital\n"}, {"from": "gpt", "value": " [O][=C][N][C][=Branch1][C][=O][N][C][=Branch1][C][=O][C][Ring1][Branch2][Branch1][=Branch1][C][Branch1][C][C][C][C][C][=C][Branch1][C][C][C]\n"}]