1H-pyrido[2,3]furo[2,4-b]pyrimidine-2,4-dione

4,4'-二甲基联苯

2-(4-methylaphenyl)-3-pyridinecarbonitrile

2-(3-甲氧基苯基)吡啶并[3,2:4,5]呋喃并[3,2-d]嘧啶-4(3h)-酮

3-(4-氧代-3,4-二氢吡啶并[3,2:4,5]呋喃并[3,2-d]嘧啶-2-基)苯乙酸酯