Using COc1c(-c2ccn(C)c(=O)c2)cnn1-c1ccc(C(=O)NCC2CCOCC2)cn1 to produce Cn1ccc(-c2cnn(-c3ccc(C(=O)NCC4CCOCC4)cn3)c2O)cc1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.