[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an alkylamine having isobutyl as the alkyl group. It has been isolated from Sambucus nigra (Elderberry). It has a role as a plant metabolite. It is a conjugate base of a 2-methylpropanaminium."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][N]"}]