Using O=c1cnn(CCCCCl)c(=O)[nH]1, FC(F)(F)c1cccc(N2CCNCC2)c1 to produce O=c1cnn(CCCCN2CCN(c3cccc(C(F)(F)F)c3)CC2)c(=O)[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.