Using O=C1CN(C(=O)OCc2ccccc2)CCN1, O=C(CBr)C12CC3CC(CC(C3)C1)C2 to produce O=C1CNCCN1CC(=O)C12CC3CC(CC(C3)C1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.