Using CCCc1c(OCCCOc2ccc(C(N)=O)c(OC)c2CCC)cccc1OCC(=O)OCC to produce CCCc1c(OCCCOc2ccc(C(N)=O)c(OC)c2CCC)cccc1OCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.