Using Cc1cnc2c(C(=O)O)cn(Cc3nccc(OCC(F)(F)F)c3C)c2c1, NCCO to produce Cc1cnc2c(C(=O)NCCO)cn(Cc3nccc(OCC(F)(F)F)c3C)c2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.