tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-1-hydrazine carboxylate

4-(1,3-dioxacyclopent-2-yl)benzylamine

N-[(4-formylphenyl)methyl]acetamide

N-(4-(1,3-dioxolan-2-yl)benzyl)acetamide

tert-butyl N'-{1-[4-(acetylamino-methyl)phenyl]-meth-(E)-ylidene}-1-hydrazine carboxylate