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

N-boc-1,2,3,6-四氢吡啶-4-羧酸

tert-butyl 4-chloro-2-(trifluoromethyl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidine-7-carboxylate

1-boc-3-(1-苯基乙基氨基)哌啶-4-羧酸乙酯

7-苄基-4-氯-5,6,7,8-四氢吡啶并[3,4-d]嘧啶