Using Cc1cc(Nc2nc(C(=O)c3ccc(F)cn3)nc3ccccc23)n[nH]1, OCCO to produce Cc1cc(Nc2nc(C3(c4ccc(F)cn4)OCCO3)nc3ccccc23)n[nH]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.