Using Cc1nc(C)c(B2OC(C)(C)C(C)(C)O2)s1, CC(C)(C)OC(=O)N1CCOc2c(Br)cccc2C1 to produce Cc1nc(C)c(-c2cccc3c2OCCN(C(=O)OC(C)(C)C)C3)s1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.