Using COCCO[C@H]1[C@H](OC(=O)C(C)(C)C)c2ccn3c(Br)c(C)nc3c2N(C(C)=O)[C@@H]1c1ccccc1 to produce COCCO[C@H]1[C@H](O)c2ccn3c(Br)c(C)nc3c2N[C@@H]1c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.