7-(2-Amino-2-oxoethyl)-1,3-dimethyl-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid 5g

7-(2-Amino-2-oxoethyl)-1,3-dimethyl-6-oxo-6,7-dihydro-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid 5g