Using O=C1c2ccccc2C(=O)N1CCBr, c1ccc2c(N3CCNCC3)cccc2c1 to produce O=C1c2ccccc2C(=O)N1CCN1CCN(c2cccc3ccccc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.