Concept explainers
(a)
Interpretation: The stereogenic center in the given compound is to be located and its enantiomers are to be drawn.
Concept introduction: Enantiomers of a compound are the stereoisomers which are non-super imposable mirror images. A carbon atom bonded to four different groups is known as a chiral carbon. A compound which has a chiral carbon can be resolved into enantiomers. Chiral carbon centers are also called as asymmetric or stereogenic centers.
(b)
Interpretation: The stereogenic center in the given compound is to be located and its enantiomers are to be drawn.
Concept introduction: Enantiomers of a compound are the stereoisomers which are non-super imposable mirror images. A carbon atom bonded to four different groups is known as a chiral carbon. A compound which has a chiral carbon can be resolved into enantiomers. Chiral carbon centers are also called as asymmetric or stereogenic centers.
(c)
Interpretation: The stereogenic center in the given compound is to be located and its enantiomers are to be drawn.
Concept introduction: Enantiomers of a compound are the stereoisomers which are non-super imposable mirror images. A carbon atom bonded to four different groups is known as a chiral carbon. A compound which has a chiral carbon can be resolved into enantiomers. Chiral carbon centers are also called as asymmetric or stereogenic centers.
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ORGANIC CHEMISTRY
- Saquinavir (trade name Invirase) is a protease inhibitor, used to treat HIV (human immunodeficiency virus). 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.arrow_forwardLabel the stereogenic centers in each compound.arrow_forwarda.Locate the stereogenic centers in the ball-and-stick model of ezetimibe (trade name Zetia), a cholesterol-lowering drug. b. Label each stereogenic center as R or S.arrow_forward
- Locate the stereogenic center in each compound and draw both enantiomers.arrow_forward5.47 Draw both enantiomers for each biologically active compound. а. NH2 amphetamine (a powerful central nervous stimulant) b. ketoprofen (analgesic and anti-inflammatory agent)arrow_forwardcaptopril 5.70 Trabectedin, shown in a ball-and-stick model on the cover of this text, is an anticancer drug sold under the trade name Yondelis. at is a. Locate the stereogenic centers in trabectedin. b.What is the maximum number of stereoisomers possible for trabectedin? c. Draw the enantiomer. d. Draw a diastereomer. e. If the specific rotation of trabectedin is +41.5, what is the [a] of a solution that contains 75% trabectedin and 25% of its enantiomer? f. What is the ee of a solution with [a] = +10.5? %3Darrow_forward
- Problem 5.2 Classify each pair of compounds as constitutional isomers or stereoisomers. a. and and он 020st geabe AA go Aon e 2o3 С. and d. and b.arrow_forwardCaptopril is a drug used to treat high blood pressure and congestive heart failure. a.Designate each stereogenic center as R or S. b.Draw the enantiomer of captopril. c.What product is formed when captopril is treated with one equivalent of NaH? d.What product is formed when captopril is treated with two equivalents of NaH?arrow_forwardProblem 5.16 Label each stereogenic center as R or S. Br b. ge, HO н он ca C. t d. OHe o lobonot b d or HOP "OH f. HO Harrow_forward
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