Using Fc1ccc(C2CCNCC2)cc1, O=C1NC(=O)c2c(CCCBr)cccc21 to produce O=C1NC(=O)c2c(CCCN3CCC(c4ccc(F)cc4)CC3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.