A typical experimental procedure for 2-azacyclotridecanone (7) is given below: A solution of N-tert-butoxycarbonyl-12-aminododecanoic acid (0.111 g, 0.410 mmol) in CH 2 Cl 2 (10 mL) was stirred with polymer-bound HOBT (0.80 g, 0.54 mmol/g, 1.0 equiv.) at 0 °C for 5 min. DCC