ers and additional paper if necessary.) 3. Vasopressin, a substance produced by the human body that regulates blood volume and pressure, is a nonapeptide with the following amino acid sequence. Describe the results you would expect when vaso- pressin is tested with the following reagents. Note: The amino acid asparagine, ASN, is struc- turally similar to glutamine. The only difference is that asparagine has one fewer CH, group in its side chain

ers and additional paper if necessary.) 3. Vasopressin, a substance produced by the human body that regulates blood volume and pressure, is a nonapeptide with the following amino acid sequence. Describe the results you would expect when vaso- pressin is tested with the following reagents. Note: The amino acid asparagine, ASN, is struc- turally similar to glutamine. The only difference is that asparagine has one fewer CH, group in its side chain

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter18: Functional Derivatives Of Carboxylic Acids

Section18.8: Interconversion Of Functional Derivatives

Problem AQ

See similar textbooks

Similar questions

tert-Butoxycarbonyl azide was developed as a reagent for peptide synthesis at OWL's home institution, the University of Massachusetts, by Prof. L.A. Carpino. It is prepared by treating tert-butoxycarbonyl chloride with sodium azide. Propose a structure for the initially-formed intermediate in this reaction.
d-Glucuronic acid is found widely in plants and animals. One of its functions is to detoxify poisonous HO-containing compoundsby reacting with them in the liver to form glucuronides. Glucuronides are water soluble and therefore readily excreted. Afteringestion of a poison such as turpentine or phenol, the glucuronides of these compounds are found in the urine. Draw thestructure of the a- and b-glucuronides formed by the reaction of b-d-glucuronic acid and phenol.
(a) For each structure, identify all of the possible hydrogen bond donors (HBDS) and hydrogen bond acceptors (HBAS). Remember, some functional groups may be able to act as HBDS and HBAS. HO MeO Capsaicin Citalopram HO HO HO HO- Prostaglandin D2 Atropine (b) Eukaryotic cell membranes function as a hydrophobic barrier around the cell and prevent the passage of polar or charged molecules. Briefly explain how cell membranes work and use a simple diagram to aid your explanation. Refer specifically to hydrophobic and hydrophilic components in their structure.
(a) Vanillic acid is a phenolic compound found in vanilla and many other plant extracts. It is a flavouring and scent agent that produces a pleasant, creamy odour. Show the biosynthesis route for the formation vannillic acid from phenylalanine (Shikimate pathway). HO. NH2 Phenylalanine Vanillic acid
4(a) Suggest a test you will use to show that a given food substance contains protein.(b)Show how you will use(i)Modified Gabriel’s Synthsis(ii)Streckers’s Synthesis to prepare phenylalanine in the laboratory.
Suggest a test you will use to show that a given food substance contains protein. Show how you will use; A modified Gabriel's synthesis A Streckers' synthesis to prepare phenylalanine in the laboratory.
Compounds with polyfunctional groups must follow priority rule. Which of the following compound is correctly named. Justify your claim and construct its correct structure. Compound A: 3-amino-7-carboxy-4-oxoheptanamide Compound B: 3-amino-7-carbamoyl-4-oxoheptanoic acid Compound C: 3-amino-4-ox0-7-carbamoylheptanoic acid Compound D: 3-amino-4-oxo-7-carboxyheptanamide
Which of these 3 compounds is the least basic: aniline, 2-propylamine and 1-(2-aminophenyl)ethenone.
(1) what reagent is used to convert p-amino phenol to quinone (2) Draw two different kekule's structures for pyrene and under line the more stable
When aspirin is made from acetic acid, the by product is H2O; when acetic anhydride 1Sused, the by-product is acetic acid. When acetyl chloride is used (see above), the by product is HC1. Which route should you use if you were working for Leica, a company that mass produces aspirin on a daily basis? Why?
(a) Isoleucine has been prepared by the following sequence of reactions. Give the structure of compounds A through D isolated as intermediates in this synthesis.(b) An analogous procedure has been used to prepare phenylalanine. What alkyl halide would you choose as the starting material for this synthesis?
Lithium borohydride (LiBH4) is a useful reducing agent, as it is more selective than LIAIH4 but less selective than NaBH4. Specifically, LiBH4 will reduce esters, but it will not reduce amides. This selectivity is frequently employed by synthetic organic chemists. For example, during a synthesis of (-)-croalbinecine, a natural product with cytotoxic properties, compound 1 was converted to compound 3, as shown below (J. Org. Chem. 2000, 65, 9249-9251). Draw the structures of 2 and 3. CO₂Et но- 1 -N Ph 1) Excess LiBH4 2) H₂O OCH 3 2 1) Excess NaH, excess PhCH₂Br, DMF 2) H₂, Lindlar's catalyst 3