Using BrCCOCCBr, CCCC(C)COc1ccc([C@H](CN)NC(=O)[C@@H](C)c2ccccc2)cc1 to produce CCCC(C)COc1ccc([C@H](CN2CCOCC2)NC(=O)[C@@H](C)c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.