[{"from": "human", "value": "Could you provide a description of this molecule? [C][N][S][=Branch1][C][=O][=Branch1][C][=O][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][C][=C][Ring1][#Branch1][C][C][C][N][Branch1][Branch1][C][C][Ring1][=Branch1][C].[Cl]"}, {"from": "gpt", "value": "The molecule is the hydrochloride salt form of naratriptan, a sulfonamide with selective serotonin (5-HT) 1 receptor agonistic activity and anti-migraine property. Naratriptan hydrochloride binds selectively and with high affinity to the 5-HT1D and 5-HT1B receptor subtypes. Activation of these 5-HT1D/B receptors located on intracranial blood vessels leads to vasoconstriction and provides relief of migraine headaches. Naratriptan hydrochloride may also exerts its effect by stimulation of 5-HT1D/1B receptors on sensory nerve endings in the trigeminal system thereby decreasing the release of pro-inflammatory neuropeptides."}]