Using Cc1ccc([C@@H](C(=O)O)C2CCCC2)cc1, C=C(C)C to produce Cc1ccc([C@@H](C(=O)OC(C)(C)C)C2CCCC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.