Using N=C(Nc1cccc(N)c1)N1CCCC1, CC(C)COC(=O)Cl to produce CC(C)COC(=O)Nc1cccc(NC(=N)N2CCCC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.