[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an antiviral prescription medicine approved by the U.S. Food and Drug Administration (FDA) for the treatment of herpes simplex virus (HSV) and varicella zoster virus (VZV) infections."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][O][C][C][Branch2][Ring1][Ring1][C][C][N][C][=N][C][=C][N][=C][Branch1][#Branch1][N][=C][Ring1][=Branch1][Ring1][=Branch2][N][C][O][C][=Branch1][C][=O][C]"}]