[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch2][Ring1][N][C@H1][Branch2][Ring1][=Branch1][O][C@H1][Ring1][Branch1][N][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][/C][=C][/Br][C][O][O]"}, {"from": "gpt", "value": "The molecule is used in the treatment of herpes zoster. Although not approved in the U.S. or Canada, it is approved in several European countries."}]