Using CC(C)OB(OC(C)C)OC(C)C, CC(C)(C)OC(=O)n1ccc2cc(C3(C)OCCO3)ccc21 to produce CC(=O)c1ccc2c(c1)cc(C)n2C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.