Using COc1ccc2cc([C@H](C)C(=O)O)ccc2c1, OC[C@@H](O)COCc1ccccc1 to produce COc1ccc2cc([C@H](C)C(=O)OC[C@H](O)COCc3ccccc3)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.