1-(2,2,4-trimethyl-2H,6H-pyrimido[2,1-b][1,3]thiazin-7-yl)ethanone InChI=1/C7H8BrN5O/c1-2-14-6-3-4(8)12-13-5(3)10-7(9)11-6/h2H2,1H3,(H3,9,10,11,12,13 ethanone, 1-(2,2,4-trimethyl-2H,6H-pyrimido[2,1-b][1,3]thiazin-7-yl)-