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Related Concept Videos

Carboxylic Acid Derivatives: Overview01:15

Carboxylic Acid Derivatives: Overview

3.6K
Carboxylic acid derivatives are formed by replacing the hydroxyl group of carboxylic acids with a different functional group. The most common carboxylic acid derivatives are:
3.6K
Acidity and Basicity of Carboxylic Acid Derivatives01:25

Acidity and Basicity of Carboxylic Acid Derivatives

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Carboxylic acids are the strongest among organic acids, as they readily lose the hydroxyl proton to form a resonance-stabilized carboxylate ion. In comparison, the acid derivatives lack acidic hydrogens directly attached to a functional group. In these compounds, the acidic nature arises from their ability to lose α hydrogens, making them weakly acidic.
The relative acidic strength of the derivatives can be explained based on the extent of resonance stabilization of the conjugate base. The...
3.4K
Relative Reactivity of Carboxylic Acid Derivatives01:13

Relative Reactivity of Carboxylic Acid Derivatives

2.7K
Carboxylic acid derivatives such as acid halides, anhydrides, esters, and amides undergo nucleophilic acyl substitution reactions with varying degrees of reactivity.
A key factor in assessing the reactivity of the acid derivatives is the basicity of the substituent or the leaving group. The lower the basicity of the leaving group, the higher the reactivity of the derivative. The basicity of the leaving group follows this order:
Halide ions < Acyloxy ions < Alkoxy ions < Amine ions
2.7K
Bioequivalence: Overview01:16

Bioequivalence: Overview

1.0K
Pharmaceutical equivalents, by definition, are drug products with the same active ingredient in the same quantities, encapsulated in identical dosage forms, and intended for the same administration routes. These pharmaceutical equivalents are deemed bioequivalent if the bioavailability of the active entity in the drug preparations is similar. Moreover, pharmaceutical equivalents demonstrating bioequivalence are also regarded as therapeutically equivalent. This means that when used as directed,...
1.0K
Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides01:16

Nomenclature of Carboxylic Acid Derivatives: Acid Halides, Esters, and Acid Anhydrides

4.3K
Naming Acid Halides
The IUPAC and common names of acid halides are derived from the corresponding carboxylic acids, by changing “ic acid” to “yl halide.” For example, as shown below, the IUPAC name ethanoyl chloride is derived from ethanoic acid, and the common name, acetyl chloride, is obtained from acetic acid.
4.3K
Nucleophilic Acyl Substitution of Carboxylic Acid Derivatives01:15

Nucleophilic Acyl Substitution of Carboxylic Acid Derivatives

3.2K
Nucleophilic acyl substitution is an important class of substitution reactions involving a nucleophile and an acyl compound, such as carboxylic acids and their derivatives. In these reactions, the leaving group attached to the acyl group is substituted by a nucleophile. The general mechanism proceeds via two steps.
3.2K

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Related Experiment Video

Updated: Jul 7, 2025

Using Capillary Electrophoresis to Quantify Organic Acids from Plant Tissue: A Test Case Examining Coffea arabica Seeds
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seco-1-Azacubane-2-carboxylic Acid: Derivative Scope and Comparative Biological Evaluation.

Dehui Kong1, Tyler Fahrenhorst-Jones1, Andy Kuo2

  • 1School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia.

The Journal of Organic Chemistry
|December 22, 2023
PubMed
Summary

Researchers incorporated a unique amino acid, seco-1-azacubane-2-carboxylic acid, into drug molecules. The modified endomorphin-2 showed higher delta opioid receptor activity, while others lost function but remained non-toxic.

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Area of Science:

  • Medicinal Chemistry
  • Biochemistry
  • Pharmacology

Background:

  • Sterically constrained amino acids offer unique structural properties for drug design.
  • Incorporating novel building blocks can modulate the pharmacological profiles of existing therapeutics.

Purpose of the Study:

  • To investigate the impact of introducing seco-1-azacubane-2-carboxylic acid into bioactive molecules.
  • To evaluate the biological activity and cytotoxicity of these novel derivatives.

Main Methods:

  • Synthesis of derivatives by incorporating seco-1-azacubane-2-carboxylic acid into enalaprilat, perindoprilat, endomorphin-2, and isoniazid.
  • Biological testing of synthesized compounds, including assessment of activity at the delta opioid receptor.
  • Cytotoxicity evaluation using human normal cell lines.

Main Results:

  • The endomorphin-2 derivative exhibited enhanced activity at the delta opioid receptor.
  • Derivatives of enalaprilat, perindoprilat, and isoniazid showed reduced biological activity.
  • Human normal cell line testing indicated limited cytotoxic effects for the modified compounds.

Conclusions:

  • Seco-1-azacubane-2-carboxylic acid can selectively modulate the activity of bioactive molecules.
  • The endomorphin-2 derivative represents a potential lead for delta opioid receptor-targeted therapies.
  • The observed limited cytotoxicity suggests a favorable safety profile for further investigation.