Using C1COCCN1, Cc1nnc2n1-c1sc(CCC(=O)O)cc1C(c1ccccc1Cl)=NC2C to produce Cc1nnc2n1-c1sc(CCC(=O)N3CCOCC3)cc1C(c1ccccc1Cl)=NC2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.