tert-Butyl 2-(2-bromo-5,7-dioxo-4,5-dihydrothiazolo[5,4-d]pyrimidin-6(7H)-yl)acetate 250mg

tert-Butyl 2-(2-bromo-5,7-dioxo-4,5-dihydrothiazolo[5,4-d]pyrimidin-6(7H)-yl)acetate 250mg