Using CCOC(=O)C1(c2ccc(Cn3c(CC)nc4c(C)cc(C)nc43)s2)CC=CC1 to produce CCc1nc2c(C)cc(C)nc2n1Cc1ccc(C2(C(=O)O)CC=CC2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.