Using COB(OC)OC, CN1CCN(S(=O)(=O)c2ccc3c(ccn3C(=O)OC(C)(C)C)c2)CC1 to produce CN1CCN(S(=O)(=O)c2ccc3c(c2)cc(B(O)O)n3C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.