1-(5-chloro-1,3-benzothiazol-2-yl)-3-phenylthiourea

2-phenyl-3-sulfanylidene-6,7,8,8a-tetrahydro-5H-imidazo[1,5-a]pyridin-1-one

N,N'-diphenylhydrazinecarbothioamide

1-hydroxy-1,3-diphenylthiourea

2-(methylaminomethylidene)-3-oxo-N-phenylbutanethioamide