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- . CONUERT D-LYOSE TO A +HAWTHOAN PROSECTIO (MUST Stlow ALL STEPS): OH Ho.2. Each of 10 stereoisomeric sugar derivatives can be prepared via a multiple-step synthesis starting from either glucuronolactone 1D or its enantiomer 1L. (J. Org. Chem. 2012, 77, 7777-7792). 1L A. Draw the structure of 1L. 1D OH HO N OH HO OH sugar derivative B. How many stereoisomers of 1D are possible? C. Now consider the 10 stereoisomeric sugar derivatives. Draw the structures of the eight chiral products (as pairs of enantiomers) and the two achiral products (hint: meso).write the magor produob formed by the to llow ung veaction, Assume that mo1l of You have enough of each reagont/ Reactant to drive bhe veactrion to Completion. protic wek up alowe as neee ssang As sume bhert thore 's Dibal- CH30H, H
- Determine A and B to complete the reaction below: CH,OH CH,OH H+ OH OH H,0 OH OCH OH OH tr-D-glucopyranose a glycoside O A: CH3 ; B. H2O O A CH3CH2OH; B. H2O O A CH3OH; B. H2O О А ОСНЗ В. Н20Wnite out He steps necessany TO make CH2CH2 Clz CH starting with ettyne ond any y oter Chemicab.Shown here is a/anglycosidic linkage. CH₂OH CH₂OH I OH Н OH Н O Alpha Beta OL- O D- О Н I ОН HO OH -О Н Н H OH OH
- H,O ? ÓTs 19.Q/when preparing allk anes firom Oryanilacids we obtain 2HO HO. OH base CI EIO- C-OEt epichlorohydrin OH NaOEt 2,6-dihydroxy- acetophenone *Na O2C. .CO2 Na* NaOH, H2O II OH Cromolyn sodium Cromolyn sodium, developed during the 1960s, has been used to prevent allergic reactions primarily affecting the lungs, as, for example, exercised- induced emphysema. It is thought to block the release of histamine, which prevents the sequence of events leading to swelling, itching, and constriction of bronchial tubes. v Cromolyn sodium is synthesized in the above series of steps. rch 31% 11:24 P 4/20/20-
- 12:08 PM Thu Apr 28 @ 61% HW 13 Home Insert Draw Layout Review View Calibri Light Regu 12 ΒΙυ U A unsaturated b. -C(CH,),CH=CH(CH,),CH3 8ölid С. || -C(CH,)16CH; Saterated 54. Classify each of the following carbohydrates as a monosaccharide, dissaccharide, or polysaccharide: CH,OH H 0- н СН,ОН 0 H а. H ОН Н H OH НО CH,OH OH ОН H H H-C-0H НО—С—Н H-C-OH Н—С—ОН CH,OH HOCH2 CH,OH С. H. Но OCH2CH3 OH H CH,OH CH,OH CH,OH H -0 H H -0 H H H d. H. ОН Н ОН Н ОН Н ОН H OH H ОН 58. Classify each molecule as a lipid, carbohydrate, or amino acid: CH,0C(CH,)12CH, а. l'pid CHOC(CH,),4CH3 CH;0C(CH,),CH=CH(CH,);CH; b.Which substrate in the following reaction will form only the product shown OH L BHy-THF 2. H;O, NaOH Oa. Ob. Od.I. A. Name the following compounds as pyranose/furanose; Pyranoside/Furanoside; alfa/beta; Reducing/ non-reducing sugars CH2OH OH 1. он a. Furanose/furanoside/Pyranose/Pyranoside b. Alfa/beta c. Reducing/ non-reducing CH2OH OCH3 OH но 2. OH a. Furanose/furanoside/Pyranose/Pyranoside b. Alfa/beta c. Reducing/ non-reducing но H OCH3 OH 3. но a. Furanose/furanoside/Pyranose/Pyranoside b. Alfa/beta c. Reducing/ non-reducing CH2OH OH OH но 4. OH a. Furanose/furanoside/Pyranose/Pyranoside b. Alfa/beta c. Reducing/ non-reducing ÇH,OH CH,OH OH 5.