1027-35-6
1-苄基-4-酮基-3-吡咯烷甲酸乙酯
+
57-13-6
尿素
→
~43%
635698-34-9
6-苄基-6,7-二氢-1H-吡咯并[3,4-d]嘧啶-2,4(3H,5H)-二酮