Using CCCCN=C=O, COc1ccc(C2CC(=O)NN2C)cc1OC1CCCC1 to produce CCCCNC(=O)N1C(=O)CC(c2ccc(OC)c(OC3CCCC3)c2)N1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.