1-苄基-3-氧杂-4-哌啶甲酸乙酯

7-苄基-4-氯-2-甲基-5,6,7,8-四氢吡啶并[3,4-d]嘧啶

1-Boc-4-氧-3-哌啶羧酸乙酯

7-苄基-4-氯-5,6,7,8-四氢吡啶并[3,4-D]嘧啶-2-胺

N-Boc-3-氧代哌啶-4-甲酸乙酯