y? 0 0 NH2 HO NH3 OH D) NH2 The 2 simple sugars here are joined via a linkage. OH -OH -OH H OH OH OH OH OH a) ẞ-1,3' b) ẞ-1,6' c) a-1,3' d) α-1,4' e) a-1,6'
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- 7) Which structure below represents a ketone? A) CH3CH2 0– CH,CH3 B) II C- Он C) CH3CH2C H D) -ċ-CH3 E) -NH2How many of the following are D sugars? CH2OH CH2OH O :0 Но HO-H НО 0 0 1 0 2 3 III H- CH₂OH Н- III H -ОН -ОН ОН CH₂OH I НО CH₂OH =0 -ОН -Н CH₂OHThe carbohydrate shown here is classified as a ÇH;OH но. -Ç- H-Ç- H- -HO- ČH2OH
- 3) Draw BOTH an alpha and beta pyranose for the sugar shown below after the ring reacton. H. %3D НО-С—Н HO-C-H НО -С—Н Н-С—ОН ČH2OH 4) Draw BOTH an alpha and beta pyranose for the sugar shown below after the ring reaction: CH2OH C=0 Н-С-ОН H-Ċ-OH Н-С-ОН ČH-OHvailable Hint(s) H. CH,OH HOH,C OH OH но HO/CH,OH OH OH HO Hemiacetals Acetals Neither Pearson 74°F Sunny2. Which of the following molecules is NOT a reducing sugar? ОН ОН НО- A ОН ОН CHO HOH HOH CH₂OH ОН ОН ОН ОН C ОН H CH₂OH О ОН ОН D ОН H Т. Н
- HO 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 4/20/20-9. Classify the following as Hemiacetal, or acetals or none. Label the carbon that is Hemiacetal and acetal H Н Н ОН CH₂OH он он CHO -H -OH -Н HOH CH₂OH OCH3 b ОН CH₂OH ОН ОН он CH₂OH ОН ОН ОН ОН с. ОН f. CH2OH он он OH OHView Available Hint(s) Hemiacetals Н О 0 HO Acetals CH2OH OH HO OH CH2OH OH OH OH 0 + 0- Neither Reset Help
- 2. Draw in the space below the acetal formed in the following reaction. (include all products) CH,-CH,-C-H → acetal: 2 CH3-OH1) Draw the structures of the reaction products: Reaction 1 L Reaction 2 OH OH L OH OH Reaction 3 نی OH OH + ii H* + H3C-OH H* I H* + H3C OHOH conc H3PO4 A A MCPBA CH₂Cl₂ B NaOH H₂O 8. Identify the products A,B and C.