Using CCOC(=O)[C@H](CCC(C(=O)OC)C(=O)OC)O[Si](CC)(CC)CC, N=C(N)NC1CCOCC1 to produce CCOC(=O)[C@@H](O)CCc1c(O)nc(NC2CCOCC2)nc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.