686267-34-5
4-(苄基氨基)-2-(甲基硫代)嘧啶-5-羧酸
+
686266-26-2
4-[(2-ethylbutyl)amino]-2-(methylthio)pyrimidine-5-carboxylic acid
→
686267-35-6
1-苄基-7-(甲基硫代)-1H-嘧啶并[4,5-d][1,3]噁嗪-2,4-二酮