Use cyclopentane and ethyne as the sole source of carbon atoms and synthesis the following compound. Show how the following synthesis could be accomplisbed using a protecting group. Synthesize each of the following compounds. Only alcohols or esters containing no more than four carbon atoms are available as well as any solvents and any inorganic compounds, including oxidizing and reducing agents, that you need. You may use oxirane or bromobenzene if needed. You must show the synthesis of any other required organic compounds. To start, write a retrosynthetic analysis for each and use a Grignard reagent at one step in the synthesis