Using CC(C)OB(OC(C)C)OC(C)C, Brc1c(-c2ccccn2)nn2c1CCC2 to produce OB(O)c1c(-c2ccccn2)nn2c1CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.