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- Assign an R or S confi guration to the chiral center in each molecule. H. HO. Н ОН CНО (a) (b) (c) H►CVIII. Assign R, S configurations to each chirality center in the molecule below. Br CH3 X OH CH3 I I (How are these molecules related? OH CH3 CH3 and ZOH A. conformational isomers В. enantiomers C. diastereomers D. constitutional isomers OB O A OD5. Consider the following pairs of structures. Identify the relationship between them (enantiomers, diastereomers, or identical compounds. он HO o CH,OH H,C H но CH,OH сон H HO. HO CH, HO,C CH COH HO,C, CO,H CO,H н онн он н онн он HOH,C сно OHC CH,OH Br CH,CH, H,CH,C CI CH OH4. Classify each pair of compounds as either enantiomers, diastereomers, identical, constitutional isomers, or not isomers. x HO OH NH OH H. H HN HO Me H HO n-Pr Me -OHPart D. Do the two structures A and B of each pair drawn below represent the same molecule, constitutional isomers, or stereoisomers? If A and B are stereoisomers, further classify them as enantiomers or diastereomers. H3C Structure A H3C HO H3C H3C Br T H H3C H HO H3CC H C Br HC H H H H CH₂Br CH₂CH3 H CH₂CH3 CH₂OH OH H HO G G H HO H HO G CH3 CH3 CH3 Br Hallo H H3C H Structure B H3C CH3 Br WING H Br HOCH₂ CH3 CH3 HO H CH₂OH H CH₂CH3 H CH₂CH3 H H H H H H Gim CH3 H OH "H ·GII. CH3 HO. OH OH CH3 CH3 OH Relationship of A and B1. Locate/Label the chirality center of the given molecules. a. OH H2N C H CH3 CH3 SH b. OH HO CH2NHC(CH3)3 HOCH2- Assign R or S configuration to each chiral centre H. CH2 HO \CH(CH3)2 H. CH2OH H3C 'NH2 H. H CH3 CH3 H. CH3 НО С. `CH2CH3 CH3 HDetermine and label the configuration of each chiral carbon in the molecule shown below. HN B O FI OH The molecule shown below is the synthetic drug Latuda (Lurasidone) that is prescribed for antipsychotic for the treatment of schizophrenia in adults and adolescents (13-17 years). Examine the molecule carefully and answer the following questions. H 'N (S) H INH (R) (S) (R) IH H (S) O (S) a) Identify and label the functional groups in the molecule. b) Confirm the configuration of each stereogenic (R/S) center the molecule. c) Label the hybridization of all the nitrogen atoms in the molecule d) Circle of the most basic atom in the molecule and estimate the pKa of the conjugate acid of the base.5. Consider the following pairs of structures. Identify the relationship between them (enantiomers, diastereomers, or identical compounds. HOH2C H OH H OH HO H Br H3C Н H H₂CH₂C CI Br H CHO CH3 I CH3 OH OHC Н H OH H OH Bell!! H3C, HO H Н.С H CH₂CH3 CH3 CI HỌ,H CH₂OH Br1. How are each of the structures A-F related to structure X? They could be E (enantiomers), D C (conformers), or I (identical). (diastereomers), CH3 CI -Br HOH₂C- -OH CI X НО, H3C H₂C D CI Br CH₂OH CI HO STEREOISOMERS Br A CH2OH CI Br CI HOH₂COH CI CI Cl CH3 OH E -CH3 -CH₂OH B Br Br НО. Br CH3 HOH₂C CI C CI CH3 HO CH₂OH F1. How are each of the structures A-F related to structure X? They could be E (enantiomers), D (diastereomers), C (conformers), or I (identical). CH3 CH3 НО. CI- Br CH2OH CI CH3 CI CI Br HOH2C ОН HO Br 'CI HOH,C" OH Br CI HOH2Ċ CI X А. В C CI CI HO CI CI Br CH3 CI Br -CH3 H3C CH2OH ОН Br CI- ČH2OH HO "CH,OH D F ESEE MORE QUESTIONS
