Using CC(C)(C)OC(=O)N1CCOC(c2ccc(Nc3ccc(Cl)cn3)cc2)C1 to produce Clc1ccc(Nc2ccc(C3CNCCO3)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.