(a)
Interpretation:
The lactone group in each structure that merits the classification as macrolides is to be stated.
Concept introduction:
Erythromycin A is an antibiotic drug used in the treatment of many bacterial infections especially which causes infections on the skin and respiratory tract. Azithromycin is another antibiotic drug useful in the treatment of bacterial infections like ear infections, pneumonia and intestinal infections.
(b)
Interpretation:
The
Concept introduction:
Erythromycin A is an antibiotic drug used in the treatment of many bacterial infections especially which causes infections on the skin and respiratory tract. Azithromycin is another antibiotic drug useful in the treatment of bacterial infections like ear infections, pneumonia and intestinal infections.
(c)
Interpretation:
The
Concept introduction:
Erythromycin A is an antibiotic drug used in the treatment of many bacterial infections especially which causes infections on the skin and respiratory tract. Azithromycin is another antibiotic drug useful in the treatment of bacterial infections like ear infections, pneumonia and intestinal infections.
(d)
Interpretation:
The
Concept introduction:
Erythromycin A is an antibiotic drug used in the treatment of many bacterial infections especially which causes infections on the skin and respiratory tract. Azithromycin is another antibiotic drug useful in the treatment of bacterial infections like ear infections, pneumonia and intestinal infections.
(e)
Interpretation:
The reason as to why an amine is considered as a good choice to be the “chemical opposite of a ketone” is to be stated.
Concept introduction:
Erythromycin A is an antibiotic drug used in the treatment of many bacterial infections especially which causes infections on the skin and respiratory tract. Azithromycin is another antibiotic drug useful in the treatment of bacterial infections like ear infections, pneumonia and intestinal infections.
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Organic Chemistry (9th Edition)
- H NH₂ ཡིནྣཾ ༥ ཨ ཨནྡྷ༥ ༠ ཨི་ཝཱ, ཙ ཨ་ར༩ H NH3+ the acidity of the amine ion drives the reaction to shift toward the conjugate base of the carboxylic acid product. the resulting carboxylic acid ion is a weaker base than an acetate ion. O aldehydes are more reactive toward nucleophiles than ketones. Onucleophilic attack occurs preferentially at the less hindered carbon of the formyl group.arrow_forwardExplain why carboxylic acids do not undergo nucleophilic acyl substitution reactions with amines.arrow_forwardA synthetic organic molecule, G, which contains both aldehyde and ether functional groups, is subjected to a series of reactions in a multi-step synthesis pathway. In the first step, G undergoes a Wittig reaction, leading to the formation of an alkene, H. Subsequently, H is treated with an ozone (O3) reagent followed by a reducing agent in an ozonolysis reaction, resulting in the formation of two different products, I and J. Considering the functional groups present in G and the nature of the reactions involved, what are the most probable structures or functional groups present in products I and J? A. I contains a carboxylic acid group, and J contains an aldehyde group. B. I contains a ketone group, and J contains an alcohol group. C. I and J both contain aldehyde groups. D. I contains an ester group, and J contains a ketone group. Don't use chat gpt.arrow_forward
- The odor of ripe bananas and many other fruits is due to the presence of esters. For example: Banana oil (isopentyl acetate) (a) Write the name (common or IUPAC) of the ester responsible for the fragrance of the following: pineapple, orange, apple, peach, & lavender (b) Choose one fragrant from (a) and name the alcohol and the carboxylic acid needed to synthesize this ester. (c) Show the detailed mechanism of the Fischer Esterification reaction that will be involved in the synthesis of the fragrant you have chosen in part (a).arrow_forwardHydration of aldehydes and ketones can be catalyzed by acid or base. Bases catalyze hydration by: protonating the carbonyl oxygen making the carbonyl group more electrophilic employing hydroxide ion, which is a better nucleophile than water making the carbonyl group less electrophilic shifting the equilibrium position of the reaction to favor productsarrow_forwardIn biochemical reactions, decarboxylation of carboxylic acids typically takes place for-keto carboxylic acids. Justify a rational why nature opted for-keto carboxylic acid decarboxylation. Among the following types of biochemical reactions, ester hydrolysis, rearrangement reactions, water elimination reactions, and anhydride hydrolyses, which one is the most favorable one. Rank the above reactions types in the order of being the most to least favorable reactionarrow_forward
- Carboxylic acid is treated with an alcohol and an acid catalyst, an ester is formed and this reaction is called the Fischer esterification. From the reaction, propose the mechanism of ester esterification and ester hydrolysis and their relationshiparrow_forwardCH3 Ph3P-CHCH3 H3C H3C Aldehydes and ketones are converted into alkenes by means of a direct nucleophilic addition called the Wittig reaction. In the reaction, a triphenylphosphorine ylide, also called a phosphorane, adds to an aldehyde/ketone to give a four-membered cyclic intermediate called an oxaphosphetane. The oxaphosphetane is not isolated but instead spontaneously decomposes to release triphenylphosphine oxide and an alkene. Ph3P-CHCH3 H3C The ylide is formed by reaction of triphenylphosphine, a good nucleophile, with a primary alkyl halide in an S 2 reaction, followed by deprotonation of the carbon with a strong base, such as butyllithium. The carbonyl carbon and the carbon originally bonded to the halogen become the two carbons with the double bond in the product alkene :0: CH3 Com The real value of the Wittig reaction lies in its ability to yield an alkene of predictable structure, as the C-C bond is precisely where the C=O bond was in the reactant and no isomers (other than…arrow_forwardProstaglandins are a class of eicosanoids, fatty acid derivatives involved in a variety of important phenomena, including fever, inflammation, and pain. The first step in prostaglandin synthesis involves the conversion of the 20-carbon fatty acid arachidonic acid to PGG2 by the enzyme prostaglandin endoperoxide synthase, or cyclooxy: Ibuprofen is one of several inhibitors of cyclooxogenase used therapeutically. Arachidonic acid 20₂ 0.5 1.0 1.5 2.5 3.5 cyclooxrygenase PGG₂ JOH محمد The following kinetic data were obtained for the enzyme cyclooxygenase in the absence of any inhibitor (1), and in the presence of ibuprofen (2) at a concentration of 48 [arachidonic acid] (uM) (1) v(uM/min) (2) v(uM/min) 23.5 32.2 36.9 41.8 44.0 16.67 25.25 30.49 37.04 38.91 Ibuprofen A. Plot the data in standard Michaelis-Menten form as well as in double-reciprocal form. B. Determine Vmax and Km for the enzyme. C. Based on this limited data set, what type of inhibition does ibuprofen likely exhibit?…arrow_forward
- Explain this statement: Although 2-methoxyacetic acid (CH3OCH2COOH)is a stronger acid than acetic acid (CH3COOH), p-methoxybenzoic acid(CH3OC6H4COOH) is a weaker acid than benzoic acid (C6H5COOH).arrow_forwardExplain this statement: Although 2-methoxyacetic acid (CH3OCH2COOH) is a stronger acid than acetic acid (CH3COOH), p-methoxybenzoic acid (CH3OC6H4COOH) is a weaker acid than benzoic acid (C6H5COOH).arrow_forwardWhich of the following statements is correct? A) The haloform reaction proceeds under very difficult conditions and the yield is very low. B) The haloform reaction is used only for the identification of compounds containing secondary alcohol groups. C) Methyl ketones or alcohols are oxidized with halogens in acidic solutions to give carboxylic acids and the appropriate haloform product. D) Enolate anions react rapidly with halogens to give alpha-halocarbonyl compounds.arrow_forward
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