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- A tripeptide undergoes complete hydrolysis and the resulting mixture contains only phenylalanine and glycine. Draw all possible sequences for the original tripeptide.By using only amide/Peptide bond forming rxn and a lKylation rxns. Provide all the reaction steps with the reagent needed and conditions with out showing the mechanism for each step to form the product. Note: Use protecting groups like (Boc, Fmoc, and others) H2NNH2+According to the paper, F486 is a phenylalanine residue (i.e., an amino acid that is part of a chain that forms a protein) on SARS-CoV-2. It has an important interaction with ACE2 (best seen in Fig. 1(C) and Fig. 2(A)). Looking at this phenylalanine and the green residues surrounding it, which statement best describes the interaction that could be occurring? a) It forms a hydrogen bond with Y83. b) It forms a dipole-dipole interaction with M82. c) It forms London dispersion forces with surrounding residues. d) It encounters repulsions from surrounding residues.
- Brucine is a poisonous alkaloid obtained from Strychnos nux vomica, a tree that grows in India, Sri Lanka, and northern Australia. Write out a resolution scheme, which shows how a racemic mixture of phenylalanine can be resolved using brucine.Show the reaction mechanism for the conversion of phenylalanine to tyrosineDraw the mechanism for the reaction that removes an Fmoc group from an amino acid under these conditions: