(1,3-dimethyl-2,4,6-trioxo-hexahydro-pyrimidin-5-yl)-urea

草酸

5,5'-dibromo-1,3,1',3'-tetramethyl-[5,5']bipyrimidinylhexaone

丙酮

5,6-二氨基-1,3-二甲基尿苷水合物