5-Methyl-3-(2-pyridyl)-2H,5H-1,3-oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide | 5-Methyl-3-(pyridin-2-yl)-2H,5H-1,3-oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide |
5-Methyl-3-(2-pyridinyl)-2H,5 H-1,3-oxaZino[5,6-c][1,2]benzothiazine-2,4(3H)-dione-6,6-dioxide | 5-Methyl-3-(pyridin-2-yl)benzo[5,6][1,2]thiazino[3,4-e][1,3]oxazine-2,4(3H,5H)-dione 6,6-dioxide |