1-苄基-3-哌啶酮

N-苄基-3-氧代哌啶-4-羧酸乙酯盐酸盐

2,4-二氯-5,6-二氢吡啶并[3,4-d]嘧啶-7-甲酸叔丁酯

N-Boc-3-氧代哌啶-4-甲酸乙酯

7-苄基-5,6,7,8-四氢吡啶并[3,4-D]嘧啶-2,4(1H,3H)-二酮