617-35-6
丙酮酸乙酯
+
54030-57-8
5,6-diamino-2-methylsulfanyl-1H-pyrimidin-4-one
→
~3%
138612-38-1
4-amino-6-methyl-2-methylsulfanylpyrimido[4,5-b][1,4]oxazin-7-one
138612-37-0
6-Methyl-2-methylthio-4,7(3H,8H)-pteridinedione