Using CCOC(=O)c1cn2ncnc(Oc3ccc(NC(=O)CC(=O)Nc4ccc(F)cc4)cc3F)c2c1C to produce Cc1c(CO)cn2ncnc(Oc3ccc(NC(=O)CC(=O)Nc4ccc(F)cc4)cc3F)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.