Using CCN=C=NCCCN(C)C, CC(C)(C)OC(=O)NCCOc1ccc(CC(=O)O)cc1 to produce CN(C)C(=O)Cc1ccc(OCCNC(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.