[{"from": "human", "value": "Please give me some details about this molecule. [C][=N][C][=C][Branch1][=N][N][Ring1][Branch1][C][O][C][Branch1][Ring1][C][O][C][O][N][=C][Branch1][=Branch1][N][C][Ring1][=C][=O][N]"}, {"from": "gpt", "value": "The molecule is an oxopurine that is guanine substituted by a [(1,3-dihydroxypropan-2-yl)oxy]methyl group at position 9. Ganciclovir is an antiviral drug used to treat or prevent AIDS-related cytomegalovirus infections. It has a role as an antiviral drug and an antiinfective agent. It is an oxopurine and a member of 2-aminopurines. It is functionally related to a guanine."}]