Using C[Si](C)(C)CCOCn1c(C=O)nc2ccccc21, NC1CCCc2cccnc21 to produce C[Si](C)(C)CCOCn1c(CNC2CCCc3cccnc32)nc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.