Using COCCn1nnc2c(Nc3c(C)cc(C)cc3C)nc(C)nc21, CCI to produce CCN(c1c(C)cc(C)cc1C)c1nc(C)nc2c1nnn2CCOC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.