Using Nc1nc(Cl)nc(Cl)n1, COc1cc2c(cc1OC)CNCC2 to produce COc1cc2c(cc1OC)CN(c1nc(N)nc(Cl)n1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.