Using O=C(O)Cc1cnc(-c2ccnc(F)c2)c(F)c1, Nc1ccc(-c2cnccn2)cn1 to produce O=C(Cc1cnc(-c2ccnc(F)c2)c(F)c1)Nc1ccc(-c2cnccn2)cn1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.