上游原料
2-fluoro-4-iodopyridine1-methylpropionic anhydride1-(2-fluoro-4-iodo-3-pyridinyl)-2-methylpropan-1-onehydrazine hydrate4-iodo-3-isopropyl-1H-pyrazolo[3,4-b]pyridine4-iodo-3-isopropyl-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridine4-(1H-imidazol-4-yl)-1-methyl-1H-pyrazole hydrochloride3-isopropyl-1-(4-methoxybenzyl)-4-(4-(1-methyl-1H-pyrazol-4-yl)-1H-imidazol-1-yl)-1H-pyrazolo[3,4-b]pyridine3-isopropyl-4-(4-(1-methyl-1H-pyrazol-4-yl)-1H-imidazol-1-yl)-1H-pyrazolo[3,4-b]pyridine3-ethyl-4-fluorobenzonitrile3-ethyl-4-(3-isopropyl-4-(4-(1-methyl-1H-pyrazol-4-yl)-1H-imidazol-1-yl)-1H-pyrazolo[3,4-b]pyridin-1-yl)benzonitrile