5-氨基-3-甲基-1H-吡唑-1-羧酸叔丁酯

2-甲基-2-丙基3-氨基-5-甲基-1H-吡唑-1-羧酸酯

2-methyl-5-phenyl-1H-pyrazolo[1,5-a]pyrimidin-7-one

2-methyl-5,7-diphenyl-6,7-dihydropyrazolo[1,5-a]pyrimidine

2-methyl-1H-pyrazolo[1,5-a]pyrimidin-5-one