Using CCCc1ncc(CBr)c(N)n1, COc1ccccc1N1CCNCC1 to produce CCCc1ncc(CN2CCN(c3ccccc3OC)CC2)c(N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.