Using CCN(C(=O)OC(C)(C)C)C(C)(C)CO, CC(=O)OI1(OC(C)=O)(OC(C)=O)OC(=O)c2ccccc21 to produce CCC(C)(C=O)N(C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.