2-氨基-6-羟基-8-疏基嘌呤

8-mercapto-2-methylthio-6-purinone

4-amino-6-methyl-2-methylsulfanylpyrimido[4,5-b][1,4]oxazin-7-one

6-甲基-2-甲硫基-4,7(3H,8H)-蝶啶二酮

2-(Methylsulfanyl)-6-(1,2,3-trihydroxypropyl)-4(1H)-pteridinone