Using CCN=C=NCCCN(C)C, COc1cc(-c2ccnc(C(=O)O)c2)cc(OC)c1OC to produce COC(=O)c1cc(-c2cc(OC)c(OC)c(OC)c2)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.