Using C[Si](C)(C)CCOCCl, O=Cc1cnc2[nH]ccc2c1NC1CCN(Cc2ccccc2)CC1 to produce C[Si](C)(C)CCOCn1ccc2c(NC3CCN(Cc4ccccc4)CC3)c(C=O)cnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.