Using CCCCCCCCNC(=N)NC(=N)NCc1ccc(Cl)c(Cl)c1, CC(C)=O to produce CCCCCCCCNC1=NC(C)(C)N=C(NCc2ccc(Cl)c(Cl)c2)N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.