Using CCOC(=O)COc1ccc(NC(=O)OC(C)(C)C)c(C)c1, CNC to produce Cc1cc(OCC(=O)N(C)C)ccc1NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.