N-Benzoyl-N'-(toluol-4-sulfonyl)-hydrazin

2-benzoyl-1-benzyl-4,5-dihydroimidazole

2-methoxy-4-benzoyloxy-6-methyl pyrimidine

N-benzoyl-N'-2,4,6-triisopropylbenzenesulphonylhydrazine

N-benzoyl-N'-mesitylenesulphonylhydrazine