2-(6-tert-butyl-8-fluoro-1-oxophthalazin-2(1H)-yl)-6-(5-(5-(1-ethylpiperidin-4-yl)pyridin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)benzyl acetate (HCID 66743251)|Huagongshe