(N-Acetamido)-4 benzyl-1 isonipecotate d' ethyle [French] 4-Piperidinecarboxylic acid, 4-(acetylamino)-1-(phenylmethyl)-, ethyl ester 5-22-13-00537 (Beilstein Handbook Reference) 57611-91-3 BRN 0488507 Ethyl 4-(acetylamino)-1-(phenylmethyl)-4-piperidinecarboxylate