Using CC(C)c1nn2c(Cl)ccc2c(-c2ccc(F)cc2)c1C=O, NCCO to produce CC(C)c1nn2c(Cl)ccc2c(-c2ccc(F)cc2)c1CNCCO, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.