4,6-dimethoxy-3-methylisothiazolo[5,4-b]pyridine InChI=1/C6H6N4O/c7-6-9-4-3(1-2-8-4)5(11)10-6/h1-2H,(H4,7,8,9,10,11 isothiazolo[5,4-b]pyridine, 4,6-dimethoxy-3-methyl-