Using CCOP(=O)(COCC(CO[Si](C)(C)C(C)(C)C)On1cnc2c(Cl)nc(NC=O)nc21)OCC to produce CCOP(=O)(COCC(CO)On1cnc2c(Cl)nc(NC=O)nc21)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.