Using CC(=O)c1ccc2c(c1)ncn2-c1cccc(COCc2ncnn2C)c1 to produce CC(O)c1ccc2c(c1)ncn2-c1cccc(COCc2ncnn2C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.