Using c1c[nH]cn1, COc1ccc2c(Cc3c(Cl)cncc3Cl)nnc(Cl)c2c1 to produce COc1ccc2c(Cc3c(Cl)cncc3Cl)nnc(-n3ccnc3)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.