Using COCCNc1ccc(C#N)c(Oc2ccc(B3OC(C)(C)C(C)(C)O3)c(C=O)c2)n1 to produce COCCNc1ccc(C#N)c(Oc2ccc3c(c2)COB3O)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.