Using O=C(CCN1CCOCC1)c1cccc(-c2ccnc(NC(=O)c3ccccc3)c2)c1 to produce Nc1cc(-c2cccc(C(=O)CCN3CCOCC3)c2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.