25774-97-4
6-benzylidenehydrazino-1,3-dimethyluracil
60297-55-4
4,6-dimethylthiadiazolo[4,5-d]pyrimidine-5,7-dione
35221-08-0
1,7-Dihydro-5,7-dimethyl-3-phenyl-4H-pyrazolo[3,4-d]pyrimidin-4,6(5H)-dion
961-45-5
8-苯基茶碱
99261-94-6
6,8-Dimethyl-3-phenyl-1H,8H-pyrimido[4,5-e][1,3,4]thiadiazine-5,7-dione
21544-68-3

参考文献

Ichiba, Misuzu; Senga, Keitaro Journal of Heterocyclic Chemistry, 1985 , vol. 22, p. 381 - 384

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