5,6-diamino-3-(4-chlorobenzyl)-1-propylpyrimidine-2,4(1H,3H)-dione 、
3,5-二甲基-1,2-环戊二酮 在
二氯甲烷 、
碳酸氢钠 作用下,
以
glacial acetic acid methyl alcohol 为溶剂,
反应 0.67h,
以26 mg (0.065 mmol, 32%) of the title compound was isolated as a mixture of isomers的产率得到3-(4-chlorobenzyl)-6,8-dimethyl-1-propyl-7,8-dihydro-1H-cyclopenta[g]pteridine-2,4(3H,6H)-dione