Using O=C1CC(CCBr)c2ccccc2N1, c1ccc2c(C3CCNCC3)c[nH]c2c1 to produce O=C1CC(CCN2CCC(c3c[nH]c4ccccc34)CC2)c2ccccc2N1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.