Question

Please show all working anf explanations

Q2. The structure of Tamiflu, an anti-influenza drug, is shown below (Organic Lett. 2007,25 Circle and name (R/S) each chiral center in Tamiflu CHa NHz Q3·The following structure is the HIV protease inhibitor drug called Saquinavir? Circle each chiral center in Saquinavir and name as R or S O OH Q4. Provide the major organic product in the reaction below. Cl H2o CH3 CH