[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][C][=C][Branch1][=N][C][=Branch1][C][=O][N][Branch1][Branch1][C][Ring1][#Branch1][=O][C][N][Branch1][Branch1][C][=N][Ring1][O][C][C][O][C][C][O][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is an oxopurine that is a derivative of xanthine, methylated at N-1 and N-3 and carrying a 1,3-dioxolan-2-ylmethyl group at N-7, used in the treatment of asthma. It has a role as a bronchodilator agent, an antitussive and an anti-asthmatic drug. It is functionally related to a 7H-xanthine."}]