Using CCCCCc1cc(O)c2c(c1)OC(C)(C)C(CCCO)=C2C, COCCl to produce CCCCCc1cc(OCOC)c2c(c1)OC(C)(C)C(CCCO)=C2C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.