carbon monoxide

4-硫尿嘧啶

3-phenyl-6,8a-dihydro-5H-[1,2,4]oxadiazolo[4,5-c]pyrimidin-5-one

腺嘌呤

1-(2-脱氧-2-氟-beta-D-阿拉伯呋喃基)尿嘧啶