N,N-diethyl-4,5-dimethyl-6H-1,3-thiazin-2-amine

N,N-diethyl-6-methyl-6H-1,3-thiazin-2-amine

N,N-diethyl-5,6,7,8-tetrahydro-4H-3,1-benzothiazin-2-amine

3-(3-anilino-1,3-diphenylprop-2-enylidene)-1,1-diethylurea

1,1-diethyl-3-(4-phenyl-4-phenyliminobut-2-en-2-yl)urea