Using CCOP(=O)(CS(=O)(=O)OCC)OCC, CC1(C)OC2C(C=O)OC(n3cnc4c(Cl)ncnc43)C2O1 to produce CCOS(=O)(=O)C=C[C@H]1O[C@@H](n2cnc3c(Cl)ncnc32)[C@@H]2OC(C)(C)O[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.