4-(4-氯苯基)-4-氰基-1-哌啶羧酸叔丁酯

4-氰基-4-邻甲苯哌啶-1-羧酸叔丁酯

tert-butyl 4-cyano-4-(2-cyano-4-fluorophenyl)piperidine-1-carboxylate

4-氰基-4-(4-氟苯基)哌啶-1-羧酸叔丁酯

1’-BOC-1,2-二氢-2-氧代-螺[3H-吲哚-3,4’-哌啶]