Using C[Si](C)(C)C(COC(=O)[O-])N1C(=O)CCC1=O, CCOC(=O)CNCCNC(=O)OC(C)(C)C to produce CCOC(=O)CN(CCNC(=O)OC(C)(C)C)C(=O)OCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.