2-hydroxy-N'-[(Z)-(6-oxocyclohexa-2,4-dien-1-ylidene)methyl]-2,2-diphenylacetohydrazide

diphenylglycolic acid cyclohexylidene hydrazide

benzilic acid α-propylbenzylidenehydrazide

2-(Hydroxydiphenylacetyl)hydrazincarbonsaeure-tert-butylester

二苯乙醇酸甲酯