5.51 Locate the stereogenic centers in each Newman projection and label each center as R or S. a. b. H HO HO H CH 3 Br CH-CH₂ CH₂CH3 CHO H OH CH₂CH₂Br
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- Locate the stereogenic centers in each Newman projection and label each center as R or S. 5.51 CH3 а. H. Br но CH=CH2 CH2CH3 CHO b. Но HO, CH2CH,BrDrawn are four isomeric dimethylcyclopropanes. A B C D a. How are the compounds in each pair related (enantiomers, diastereomers, constitutional isomers): A and B; A and C; B and C; C and D? b. Label each compound as chiral or achiral. c. Which compounds, alone, would be optically active? d. Which compounds have a plane of symmetry? e. f. g. How do the boiling points of the compounds in each pair compare: A and B; B and C; C and D? Which of the compounds are meso compounds? Would an equal mixture of compounds C and D be optically active? What about an equal mixture of B and C?1) МСРВА 2) H,0 A. B. D. он он C +D OH OH + enentiomer + enentiomer + enentiomer + enentiomer
- Saquinavir (trade name Invirase) belongs to a class of drugs called protease inhibitors, which are used to treat HIV (human immunodeficiency virus). OH CONH2 O saquinavir Trade name: Invirase NH a. Locate all stereogenic centers in saquinavir, and label each stereogenic center as R or S. b. Draw the enantiomer of saquinavir. c. Draw a diastereomer of saquinavir. d. Draw a constitutional isomer that contains at least one different functional group.Draw the enantiomer of each compound. Problem 5.8 a. но. HO, H2N H HO L-dopa (drug to treat Parkinson's disease) b. N. HO cetirizine (antihistamine) CI H2N. С. HO, pregabalin (drug used to treat chronic pain)Problem 5.22 Draw all the possible stereoisomers for each compound, and label pairs of enantiomers hen and diastereomers. Ust a. OH fevidas OH b. CIto snelg e vil OH
- 10.51 Draw all stereoisomers formed in each reaction. a. Br₂ b. Cl₂ ن H₂O NBS d. DMSO, H₂O H₂O H2SO4Bongkrekic acid is a toxic compound producted by Pseudomonas cocovenenans, and isolated from a mold that grows on bongkrek, a fermented Indonesian coconut dish. In bongkrekic acid, abel each double bond as E or Z and each tetrahedral stereogenic center as R or S. Labels: E ZR СООН bongkrekic acid COOH H3C H3CO СООНLabel the stereogenic centers in each molecule. OH Но a. b. dobutamine (heart stimulant used in stress tests to measure cardiac fitness)
- Label each stereogenic center as R or S (parts g and h please)a. Draw Newman projections of the two conformers of cis-1,3-dimethylcyclohexane. b. Which of the conformers predominates at equilibrium? c. Draw Newman projections of the two conformers of the trans isomer. d. Which of the conformers predominates at equilibrium?5.45 Locate the tetrahedral stereogenic center(s) in each compound. A molecule may have one or more stereogenic centers. а. он он он b. OH OH ÓH с. d. OH е. но HO HO он но f.