Using N=C(N)N, CN(C)C=C1CN(c2ccnc(C(=O)Nc3cccc(C(F)(F)F)c3)c2)CCC1=O to produce Nc1ncc2c(n1)CCN(c1ccnc(C(=O)Nc3cccc(C(F)(F)F)c3)c1)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.