ORGANIC CHEMISTRY(LL)W/ACCESS>CUSTOM<
5th Edition
ISBN: 9781260263107
Author: SMITH
Publisher: MCG CUSTOM
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Textbook Question
Chapter 29, Problem 29.65P
Draw the mechanism for the reaction that removes an Fmoc group from an amino acid under the following conditions:
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Draw the mechanism for the reaction that removes an Fmoc group from an amino acid under the following conditions:
Draw the mechanism for the reaction that removes an Fmoc group from an amino acid under these conditions:
Draw the mechanism for the reaction that removes an Fmoc group froman amino acid under these conditions:
Chapter 29 Solutions
ORGANIC CHEMISTRY(LL)W/ACCESS>CUSTOM<
Ch. 29 - Prob. 29.1PCh. 29 - Problem 29.2
What form exists at the isoelectric...Ch. 29 - Problem 29.3
Explain why the of the group of an...Ch. 29 - Prob. 29.4PCh. 29 - Problem 29.5
What -halo carbonyl compound is...Ch. 29 - Problem 29.6
The enolate derived from diethyl...Ch. 29 - Problem 29.7
What amino acid is formed when is...Ch. 29 - Problem 29.8
What aldehyde is needed to synthesize...Ch. 29 - Problem 29.9
Draw the products of each...Ch. 29 - Prob. 29.10P
Ch. 29 - Prob. 29.11PCh. 29 - Prob. 29.12PCh. 29 - Problem 29.13
What alkene is needed to synthesize...Ch. 29 - Problem 29.14
Draw the structure of each peptide....Ch. 29 - Problem 29.15
Name each peptide using both the...Ch. 29 - Prob. 29.16PCh. 29 - Prob. 29.17PCh. 29 - Problem 29.18
Glutathione, a powerful antioxidant...Ch. 29 - Problem 29.19
Draw the structure of the...Ch. 29 - Problem 29.20
Give the amino acid sequence of an...Ch. 29 - a What products are formed when each peptide is...Ch. 29 - Prob. 29.22PCh. 29 - Devise a synthesis of each peptide from amino acid...Ch. 29 - Devise a synthesis of the following dipeptide from...Ch. 29 - Prob. 29.25PCh. 29 - Consider two molecules of a tetrapeptide composed...Ch. 29 - What types of stabilizing interactions exist...Ch. 29 - Prob. 29.28PCh. 29 - Draw the product formed when the following amino...Ch. 29 - With reference to the following peptide: a...Ch. 29 - Devise a synthesis of the following dipeptide from...Ch. 29 - Prob. 29.32PCh. 29 - Histidine is classified as a basic amino acid...Ch. 29 - Tryptophan is not classified as a basic amino acid...Ch. 29 - What is the structure of each amino acid at its...Ch. 29 - What is the predominant form of each of the...Ch. 29 - 29.37 What is the predominant form of each of the...Ch. 29 - a. Draw the structure of the tripeptide A–A–A, and...Ch. 29 - 29.39 Draw the organic products formed in each...Ch. 29 - 29.40 What alkyl halide is needed to synthesize...Ch. 29 - 29.41 Devise a synthesis of threonine from diethyl...Ch. 29 - 29.42 Devise a synthesis of each amino acid from...Ch. 29 - Prob. 29.43PCh. 29 - Prob. 29.44PCh. 29 - Prob. 29.45PCh. 29 - Prob. 29.46PCh. 29 - Prob. 29.47PCh. 29 - 29.48 Brucine is a poisonous alkaloid obtained...Ch. 29 - Prob. 29.49PCh. 29 - Prob. 29.50PCh. 29 - Draw the structure for each peptide: (a) Phe–Ala;...Ch. 29 - 29.52 For the tetrapeptide Asp–Arg–Val–Tyr:
a....Ch. 29 - Prob. 29.53PCh. 29 - Prob. 29.54PCh. 29 - 29.55 Draw the amino acids and peptide fragments...Ch. 29 - Prob. 29.56PCh. 29 - Prob. 29.57PCh. 29 - Prob. 29.58PCh. 29 - 29.59 An octapeptide contains the following amino...Ch. 29 - 29.60 Draw the organic products formed in each...Ch. 29 - Draw all the steps in the synthesis of each...Ch. 29 - 29.62 Write out the steps for the synthesis of...Ch. 29 - 29.63 Besides the Boc and Fmoc protecting groups...Ch. 29 - 29.64 Another method to form a peptide bond...Ch. 29 - 29.65 Draw the mechanism for the reaction that...Ch. 29 - 29.66 Which of the following amino acids are...Ch. 29 - 29.67 After the peptide chain of collagen has been...Ch. 29 - Prob. 29.68PCh. 29 - Prob. 29.69PCh. 29 - 29.70 The anti-obesity drug orlistat works by...Ch. 29 - Prob. 29.71P
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- Show the mechanism and explain how the Ala-Val-Ile peptide bond is formed.arrow_forwardDraw the amino acids and peptide fragments formed when the decapeptide A–P–F–L–K–W–S–G–R–G is treated with each reagent or enzyme: (a) chymotrypsin; 8 pt helvetica roman (b) trypsin; (c) carboxypeptidase; (d) C6H5N = C = S.arrow_forwardThe reaction of ninhydrin with an -amino acid occurs in several steps (a) The first step is loss of water to give a triketone. Show the mechanism of the reaction andthe structure of the triketonearrow_forward
- Explain why serine proteases do not catalyze hydrolysis if the amino acid at the hydrolysis site is a d-amino acid. Trypsin, for example, cleaves on the C-side of L-Arg and L-Lys, but not on the C-side of D-Arg and D-Lys.arrow_forwardShow the mechanism of the reaction converting phenylalanine to tyrosinearrow_forwardWhich of the following amino acid side chains can aid the departure of a leaving group?arrow_forward
- Explain why an irreversible inhibitor of an enzyme might be more toxic to humans than a reversible inhibitor.arrow_forwardAlthough tryptophan contains a heterocyclic amine, it is considered a neutral aminoacid. Explain why the indole nitrogen of tryptophan is more weakly basic than one ofthe imidazole nitrogens of histidine.arrow_forwardAn oligopeptide, 6 amino acids in length, was subjected to acid hydrolysis and yielded equimolar amounts of the following amino acids (in alphabetical order): Arg Gln Lys Met Thr Tyr Based on the following separate treatments, which amino acid is in position #5 of this sequence? a. Cyanogen bromide treatment had no effect. b. Trypsin treatment yielded a dipeptide, a tripeptide and free arginine. The tripeptide had a net positive charge at pH 7. c. Chymotrypsin treatment yielded a dipeptide and a tetrapeptide. The dipeptide had a net charge of zero at pH 5. d. The phenylthiohydantoin derivative released by one round of Edman degradation was PTH-Thr.arrow_forward
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