3-(diethylamino)-4-methyl-1,1-dioxo-4H-1λ⁶,2-benzothiazepin-5-one

N,N-diethyl-5-hydrazinyl-4-methyl-1,1-dioxo-1λ⁶,2-benzothiazepin-3-amine

3-phenyl-1,2-benzothiazole 1,1-dioxide