Using c1ccc(CN2CCC3=C(CNC3)C2)cc1, O=C(O)c1cn(C2CC2)c2c(F)c(F)c(F)cc2c1=O to produce O=C(O)c1cn(C2CC2)c2c(F)c(N3CC4=C(CNCC4)C3)c(F)cc2c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.