[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a direct-acting sympathomimetic amine chemically related to adrenaline and ephedrine with potent vasoconstrictor property. Phenylephrine is a post-synaptic alpha-adrenergic receptor agonist that causes vasoconstriction, increases systolic/diastolic pressures, reflex bradycardia, and stroke output."}, {"from": "gpt", "value": "[C][N][C][C@@H1][Branch1][N][C][=C][C][=Branch1][=Branch1][=C][C][=C][Ring1][=Branch1][O][O]"}]