Using C=C(C)C(=O)OCCNC(=O)COc1ccc2c(c1)C(C)(C)c1[nH]c3cc(C#N)ccc3c1C2=O to produce CC1(C)c2cc(OCC(=O)NCCO)ccc2C(=O)c2c1[nH]c1cc(C#N)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.