1,3-二甲基脲

1,3-diethyl-2,4,7-trioxo-1,2,3,4,7,8-hexahydropyrido[2,3-d]pyrimidine-6-carbonitrile

6-cyano-1,3-dimethylpyrido[2,3-d]pyrimidine-2,4,7-(1H,3H,8H)-trione

2,4,7-trioxo-1,3-dipropyl-1,2,3,4,7,8-hexahydropyrido[2,3-d]pyrimidine-6-carbonitrile

6-氨基-1,3-二甲基-2,4-二氧代-1,2,3,4-四氢嘧啶-5-甲醛