Using CC(C)(C)OC(=O)NC1CC(=O)C1, CC(C)(C)[Si](C)(C)c1ncc(C2(O)CCNCC2)s1 to produce CC(C)(C)OC(=O)NC1CC(N2CCC(O)(c3cnc([Si](C)(C)C(C)(C)C)s3)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.