Using CCNC(=O)Nc1cc(-c2nc(-c3ccccc3)cs2)c(-c2cncc(C(=O)OCC)c2)cn1 to produce CCNC(=O)Nc1cc(-c2nc(-c3ccccc3)cs2)c(-c2cncc(C(=O)O)c2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.