Using CCCN(C1CC(C)(C)Oc2ccc(O)cc21)S(=O)(=O)CC, COCCBr to produce CCCN(C1CC(C)(C)Oc2ccc(OCCOC)cc21)S(=O)(=O)CC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.