(4R)-4-(ethylamino)-2-methyl-1,1-dioxo-3,4-dihydrothieno[3,2-e]thiazine-6-sulfonamide; (R)-4-(Ethylamino)-2-methyl-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine-6-sulfonamide 1,1-dioxide; 2H-Thieno[3,2-e]-1,2-thiazine-6-sulfonamide, 4-(ethylamino)-3,4-dihydro-2-methyl-, 1,1-dioxide, (4R); 2H-Thieno[3,2-e]-1,2-thiazine-6-sulfonamide, 4-(ethylamino)-3,4-dihydro-2-methyl-, 1,1-dioxide, (R)