Using CN(C)C=O, O=C(Cc1ccc2cc[nH]c2c1)NCC1CCCC1 to produce O=Cc1c[nH]c2cc(CC(=O)NCC3CCCC3)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.