4. Provide a synthesis for each of the following molecules. Please use the starting materials indicated and any additional reactants/reagents necessary. You may find retrosynthesis to be a helpful tool to design your synthesis, but please present your answer as a forward synthesis, with all reaction conditions/reagents shown and each intermediate product drawn. You will be graded on accuracy, as well as efficiency and creativity. Note that the "hollow" arrow shown in the following problems is a retrosynthesis arrow (going backward). A. Me-o Mo fragments of 3 carbons or fewer Me Me H Et H (racemic) B. OH Br