Question: List all four protecting groups on this molecule, and what functional group they are protecting. When subjected to hydrogenation over Pd/C catalyst, which two protecting

  1. List all four protecting groups on this molecule, and what functional group they are protecting. 
  2. When subjected to hydrogenation over Pd/C catalyst, which two protecting groups are removed? 
  3. The next step in this synthesis is an intramolecular amide bond formation between the two unprotected groups. Using this fact combined with your previous answers, explain the concept of an orthogonal protecting group strategy. 
  4. NHBoc H CO2BN -Ph HN -N COOME N H Cbz H ZI

NHBoc H CO2BN -Ph HN -N COOME N H Cbz H ZI

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