None: 8-hydroxyquinoline-7-carboxylic acid ( 0.50 g , 2.64 mmol ) 
None: benzylamine ( 0.34 g , 3.17 mmol ) 
None: 1-hydroxybenzotriazole ( 0.45 g , 2.91 mmol ) 
None: 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride ( 0.56 g , 2.91 mmol ) 
None: triethylamine ( 1.6 mL , 11.6 mmol ) 
None: DMF ( 15 mL ) 
None: methanol 
None: C-18 stationary phase 
None: water / acetonitrile / TFA mobile phase 
