Using O=C(O)CCCCC(=O)O, CO[C@@]12CC[C@@]3(C[C@@H]1[C@](C)(O)C(C)(C)C)[C@H]1Cc4ccc(O)c5c4[C@@]3(CCN1CC1CC1)[C@H]2O5 to produce CO[C@]12CC[C@@]3(C[C@@H]1[C@](C)(O)C(C)(C)C)[C@H]1Cc4ccc(OC(=O)CCCCC(=O)O)c5c4[C@@]3(CCN1CC1CC1)[C@H]2O5, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.