ethyl 2-(1,2,3,4-tetrahydronaphthalen-1-yl)acetate

ethyl N-(4-phenyldiazenylphenyl)carbamate

ethyl 2-[[(2-ethoxy-2-oxoethoxy)amino]methyl]benzoate

ethyl N-pyridin-3-ylcarbamate

ethyl 5-amino-2-hydroxybenzoate