Using CC(=O)c1c(C)nc2c(NCc3c(C)cccc3C)cccn12, CO to produce Cc1cccc(CNc2cccn3c(C(C)O)c(C)nc23)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.