1H-螺[茚-1,4-哌啶]-1-羧酸叔丁酯

1-叔丁基氧基羰基-4-氨基哌嗪

tert-butyl 6-bromo-2-oxospiro[1H-indole-3,4'-piperidine]-1'-carboxylate

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

1-N-Boc-4-(3,4-二氯苯基)-4-氰基哌啶