Using CCNC(=O)Nc1ccc(-c2nc(C(=O)N(C)C)c(C(=O)OCC)s2)cn1 to produce CCNC(=O)Nc1ccc(-c2nc(C(=O)N(C)C)c(C(=O)O)s2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.