[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][/C][=Branch1][#Branch2][=C][\\C][N][C][C][C][C][Ring1][Branch1][/C][=C][C][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][/C][=C][/C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a member of the class of pyridines that is (pyridin-2-yl)acrylic acid substituted at position 6 by a [(1E)-1-(4-methylphenyl)-3-(pyrrolidin-1-yl)prop-1-en-1-yl group. It is a non-sedating antihistamine used for treatment of hayfever, urticaria, and rhinitis. It has a role as a H1-receptor antagonist. It is an alpha,beta-unsaturated monocarboxylic acid, a member of pyridines, a N-alkylpyrrolidine and an olefinic compound."}]