Using CC=Cc1cnc(C2=NC(C)(C(C)C)C(=O)N2)c(C(=O)OC)c1 to produce CC=Cc1cnc(C2=NC(C)(C(C)C)C(=O)N2)c(C(=O)O)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.