Using CCOC(=O)C1Cc2cc(C)c(C(=O)c3ccc(SC)n3C)n2C1 to produce CSc1ccc(C(=O)c2c(C)cc3n2CCC3C(=O)O)n1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.