Using COc1ccc(CNCC(OC)OC)cc1OC, CO/N=C/c1ccc2c(c1Cn1ccnc1)OCO2 to produce COc1cc2cnc3c(c2cc1OC)Cc1c-3cc2c(c1Cn1ccnc1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.