Using CC(C)(C)OC(=O)N1CCC(CCc2cccc(C(=O)NCCBr)c2)CC1 to produce O=C(NCCBr)c1cccc(CCC2CCNCC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.