Using CCOCCOc1ccnc(C=O)c1OCC, NC(=O)c1nc[nH]c1N to produce CCOCCOc1ccnc(CNc2nc[nH]c2C(N)=O)c1OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.