4-diethoxyphosphoryl-1,2-dihydropyrazol-3-one

ethyl 2-(3,4-dihydronaphthalen-2-yl)acetate

ethyl 2-diethoxyphosphoryl-3-methyl-5-oxohexanoate

ethyl 6-iodohex-2-enoate

6-methyl-2-phenylpyridazin-3-one