Using CC(C)(C)OC(=O)N1CCCC(=O)CC1, COP(=O)(Cc1ccccc1Br)OC to produce CC(C)(C)OC(=O)N1CCCC(=Cc2ccccc2Br)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.