Using CCSc1nc(-c2ccc(Cl)cc2Cl)cc2nc(CCl)cn12, C1COCCN1 to produce CCSc1nc(-c2ccc(Cl)cc2Cl)cc2nc(CN3CCOCC3)cn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.