2,4-dimethyl-1-(propan-2-yl)-1,4,2-diazaphospholidine-3,5-dione

2-methyl-1,4-diphenyl-1,4,2-diazaphospholidine-3,5-dione

N,N'-(2-methyl-1,4-diphenyl-1,4,2-diazaphospholidine-3,5-diyliden)dianiline

1,3,5-triphenyl-1,3,5-triazinane-2,4,6-trione

2-(Phenylimino)-1,3,5-triphenylhexahydro-s-triazine-4,6-dione