Using O=C1CCc2ccc(Br)cc21, Cc1nn(C)c(C)c1B1OC(C)(C)C(C)(C)O1 to produce Cc1nn(C)c(C)c1-c1ccc2c(c1)C(=O)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.