[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][C][N][C][=C][C][=Branch1][=Branch2][=N][C][=Branch1][Ring2][=N][Ring1][=Branch1][N][N][Branch1][Branch1][C][=N][Ring1][=Branch2][C@@H1][C][C@@H1][Branch1][Branch1][C][=C][Ring1][Branch1][C][O]"}, {"from": "gpt", "value": "The molecule is a 2,6-diaminopurine that is an analogue of abacavir in which the cyclopropylamino group at position 6 of the purine moiety is replaced by an isobutylamino group. One of a series of synthesised abacavir analogues with antiviral activity found to stimulate IFN-gamma secretion in abacavir-responsive clones. It has a role as an antiviral agent. It is functionally related to an abacavir."}]