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

tert-butyl 2-{4-[(acetylamino)methyl]benzyl}-2-{[cyclopentyl(methyl)amino]carbonyl}-1-hydrazinecarboxylate

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

N-[(4-formylphenyl)methyl]acetamide

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