Using CC(=N)N, COc1ccc(N2CCN(NC(=O)NN)CC2)cc1 to produce COc1ccc(N2CCN(n3c(C)n[nH]c3=O)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.