4,6-dimethylthiadiazolo[4,5-d]pyrimidine-5,7-dione

1,2-二氢-2-(4-溴苯基)-1,5-二甲基-3H-吡唑-3-酮

ethyl 2,3,3-trimethylbutanoate

ethyl 2,2,3,3-tetramethylbutanoate

1 beta-呋喃核糖基-4-(甲硫基)吡唑并(3,4-d)嘧啶