2-acetoxy-4,5-diphenylpiridine

2,6-diphenyl-2,3-dihydro-4H-thiopyran-4-one oxime

2,7-diphenyl-5-oxo-2,3,4,5-tetrahydro-1,4-thiazepine 1-oxide

2,6-diphenyl-2,3-dihydro-4H-thiopyran-4-one O-tosyloxime

4-phenylpyridin-3-yl methanesulfonate