[{"from": "human", "value": "Describe this molecule. [C][N][C][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][Branch1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a carboxylic ester obtained by formal condensation of the carboxy group of diphenylacetic acid and the hydroxy group of 4-hydroxy-N-methylpiperidine. It has a role as a muscarinic antagonist. It is a carboxylic ester, a member of piperidines and a tertiary amino compound."}]