2,4,4-triphenyl-[1,2]thiazetidin-3-one

2-(2-oxo-1,3-diphenyl-2,3-dihydro-indol-3-ylsulfanyl)-2,2,N-triphenyl-acetamide

2-benzhydrylidene-3,5,7,7-tetraphenyl-[1,4,3,5]oxathiadiazepan-6-one

1,3-di(phenyl)-2-thia-1,3-dazaallene

1,3,3-triphenylazetidine-2,4-dione