Using CCOC(=O)c1nc(Nc2ccc(-n3cnc(C)c3)c(OC)c2)nc2c1COCC2 to produce COc1cc(Nc2nc3c(c(C(C)(C)O)n2)COCC3)ccc1-n1cnc(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.