Using COc1cccn(-c2c(C)cc(N3C[C@H](CNC(=O)c4ccc(Cl)s4)OC3=O)cc2C)c1=O to produce Cc1cc(N2C[C@H](CNC(=O)c3ccc(Cl)s3)OC2=O)cc(C)c1-n1cccc(O)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.