Using CCOC(=O)C1CCn2c(c(Sc3ccc(Cl)cc3)c3c(Br)cc(F)cc32)C1=O to produce O=C1CCCn2c1c(Sc1ccc(Cl)cc1)c1c(Br)cc(F)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.