8. Two structures of Lipitor (a drug used to lower cholesterol) are shown below. (a) Determine the absolute configuration of each indicated stereocenter. Fill in the correct circle. (b) Determine if the two structures are the same compound or stereoisomers. Fill in the correct circle. (a) OH OH O Carbon a jag att HO,,, Carbon c HO O OH Carbon a: OR OS Carbon b Carbon b: OR OS Carbon c: OR S Carbon d: OR S OH Carbon d (b) The two structures are: O the same compound O stereoisomers

Consider the following structures: H font CH3 H3C Br I H3C Br H3C H Br CH3 || H3C H H H3C CH3 Br V Br CH3 -H CH3 IV Which of these structures have the (S)-configuration at both stereocenters? A) IV only B) I, III, and IV C) II and V D) I and III E) None of them

Please don't provide handwritten solution ....

From the following molecules, select all that apply: CI Br A B C D CI Br CI CI CI Br CI Br .. Br CI Plius.. Br For a compound with molecular formula C2H2Br2Cl2, (1)a stereosiomer that is optically inactive because it does not have an asymmetric center. (2) a stereosiomer that is optically inactive because it is a meso compound. (3) a stereosiomer that is optically active.