Using CCOC(=O)O[C@@H]1CCC(=O)N[C@H](C(=O)OC)CSCc2c(O[Si](C)(C)C(C)(C)C)cc(OC)c(C)c2C(=O)OC1 to produce COC(=O)[C@@H]1CSCc2c(O)cc(OC)c(C)c2C(=O)OC[C@H](O)CCC(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.