4-(2-硝基苄基氨基)哌啶-1-羧酸叔丁酯

4-(2-氧代-2,3-二氢-1H-苯并[d]咪唑-1-基)哌啶-1-羧酸叔丁酯

tert-butyl 4-(4-aminophenyl)-3,6-dihydro-2H-pyridine-1-carboxylate

4-氰基-5,6-二氢吡啶-1(2H)-羧酸叔丁酯

tert-butyl 4-oxo-3,5,6,8-tetrahydropyrido[2,3]thieno[2,4-d]pyrimidine-7-carboxylate