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- Designate the following compound as R or S. CH₂CH₂l HO-C-CH3 CH₂OH Select one: O A. There are no stereocenters in molecule. OB. S C. RCompound 1 Br Bri НІ T ... H The correct IUPAC names are: Compound 2 H Br Br I.. H Br The compounds are diastereomers not isomeric enantiomers identical constitutional isomers Compound 1: (2R, 3R)-1,2,3-tribromobutane, Compound 2: (2S, 3R)-1,2,3-tribromobutane Compound 1: (2R, 3S)-1,2,3-tribromobutane, O Compound 1: (2R,3R)-1,2,3-tribromobutane, Compound 2: (2S,3S)-1,2,3-tribromobutane Compound 2: (2R, 3R)-1,2,3-tribromobutane O Compound 1: (2S,3S)-1,2,3-tribromobutane, Compound 2: (2R,3S)-1,2,3-tribromobutaneAre the pairs molecules given below (pair a, b, c) related to each other as constitutional isomers, enantiomers, diastereomers, or identical? a Relationships OH Et Et Но- -H- H. .CH3 a: CI CH3 HO `H b: CI H CI c: a Relationships H H. CI-CH2CH3 H H H3CH2C- CI H3CH2C- H -CI a: b: H- -CI -- ČH2CH3 CI C: a Relationships and a: .CI b: c:
- 8) What is the relationship between the following compounds? H. CI H H, .... and "CI H A) B) C) D) Constitutional isomers Diastereomers Enantiomers IdenticalLabel the stereogenic center(s) in each drug as R or S. L-Dopa is used to treat Parkinson's disease (Chapter 1). Ketamine is an anesthetic. Enalapril belongs to a class of drugs called ACE inhibitors, which are used to lower blood pressure. CH3 NH CI COOH CH,CH,O,C a. Но H NH2 b. OH enalapril Trade name: Vasotec L-dopa ketamineWhat is the relationship between the parent structure on the left and the structure on the right? A: Enantiomers B: Diastereomers C: Constitutional (structural) isomers D: Identical molecules O A B O C III.. OD
- Which of the following pairs of structures represent a pair of enantiomers? a. b. C. d. O a O b Oc C Od H3C... H Br C HC NC H3CH₂C COOH H... C CN CH3 Br HC H₂N CH3 OH COOH CN HC-CH3 Br Br H.C. HOOC OH H... C H₂C CN H3C C H₂N CH₂CH3 COOH HIf a mixture has an ee of 30%, what is the percentage enantiomer) of each enantiomer? (ee = excess Select one: OA. 85%: 15% 70% 30% B. O C. 75%: 25% O D. 65%: 35%b. tor each pair State whetner theyare resonaince, Znantiomer, diastereomers structural isomers or identical materals. () (H3 CH3 (1) CH3 CH3 CH3 NH2 Br (1) NH2 HO HO Br Br
- C. IDENTIFYING STEREOISOMERS: Label each pair of molecules below as enantiomers, diastereomers or identical CO₂H HO HC но-- н H -.Н CH3 OH CH₂OH HO™ H₂OC H₂C Н-- HO Н CH3 OHH CH₂OH HOC-... HOCH₂. H OH H OH HO H CHO COzH ОНС но с HO H COzH Н ОН НО Н CH₂OHstructures. H3C H" НО CH3 CI CH₂CH3 ationship O A. identical O B. enantiomers C. constitutional isomers O D. diastereomers ollowing pair of H3C CH₂CH3 HOCH3 CI HA newly discovered drug has two stereogenic centers having absolute configuration of "R, R." Which of the following molecules represents this drug? OH CI OH CI OH H OH H CI CI CI CI N. N. CI CI O2N HO O2N HO O2N HO O2N но C Select one: a. В b. A C. C O d. D A.