Using O=C1Cc2c(Br)cccc2N1, ClCCN(CCCl)Cc1ccccc1 to produce O=C1Nc2cccc(Br)c2C12CCN(Cc1ccccc1)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.