Using NCCCCCc1nccc(NC(N)=NCC(F)(F)F)n1, O=C(O)CNC(=O)OCc1ccccc1 to produce NC(=NCC(F)(F)F)Nc1ccnc(CCCCCNC(=O)CNC(=O)OCc2ccccc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.