Using CCCBr, CCOC(=O)[C@@H]1CC2(CC[C@H]1N)OCCO2 to produce CCCN[C@@H]1CCC2(C[C@H]1C(=O)OCC)OCCO2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.