Using CS(=O)(=O)NCCN1CCOCC1, Clc1nc(N2CCOCC2)c2sc(CBr)cc2n1 to produce CS(=O)(=O)N(CCN1CCOCC1)Cc1cc2nc(Cl)nc(N3CCOCC3)c2s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.