1258649-74-9

2-{5-methyl-7-oxo-4H,7H-pyrazolo[1,5-a]pyrimidin-6-yl}acetic acid 2-{5-methyl-7-oxo-4H，7H-pyrazole[1,5-a]pyrimidine-6-yl]acetic acid Pyrazolo[1,5-a]pyrimidine-6-acetic acid, 4,7-dihydro-5-methyl-7-oxo- 2-(5-methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidin-6-yl)acetic acid