Using CC(C)(C)OC(=O)N1CCC2=NN(CC(F)(F)F)C(=O)C2(Cc2ccccn2)C1 to produce O=C1N(CC(F)(F)F)N=C2CCNCC12Cc1ccccn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.