Using O=[O+][O-], C=CCC(CCCCB1OC(C)(C)C(C)(C)O1)(NC(=O)OC(C)(C)C)C(=O)OCC to produce CCOC(=O)C(CC=O)(CCCCB1OC(C)(C)C(C)(C)O1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.