Using CC(=O)c1cn(CC(=O)Nc2sc3c(c2C(N)=O)CCCC3)nc1C(F)(F)F, NCCO to produce CC(NCCO)c1cn(CC(=O)Nc2sc3c(c2C(N)=O)CCCC3)nc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.