Answer Happy

Kemi is working on a certain drug that is used in the treatment of hypertension. Before doing the actual study, she wants to explore the compound's stereochemistry first. Help Kimi by answering the questions below. Compound A 1. REDRAW the structure of compound A and indicate the absolute configuration (R/S) of all the chiral carbons. 2. How many possible stereoisomers can this compound have? 3. Draw the enantiomer. 4. Draw a diastereomer.
Aside from the aforementioned drug, she is also curious about the properties of compound B, a drug that belongs to the statin class of medication. This compound is used to treat hypercholesterolemia. 5. Identify the configuration (E/Z) of the double bonds in compound B.