Synthesis of nitroaromatic compounds as potential anticancer agents.
Marcela Silva Lopes, Camila Filizzola de Andrade Sena, Bruno Leonardo Silva
1Department of Pharmaceutical Products, Pharmacy Faculty, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil. renatabo@farmacia.ufmg.br.
Anti-Cancer Agents in Medicinal Chemistry
|November 19, 2014
Summary
Researchers synthesized novel compounds to inhibit cancer cell growth. Five compounds showed high antiproliferative activity, with two demonstrating significant antitumor effects in vivo, suggesting potential as new cancer therapies.
Area of Science:
- Medicinal Chemistry
- Cancer Biology
- Pharmacology
Background:
- Developing novel anticancer agents is crucial for improving patient outcomes.
- Structure-activity relationships of nitrated and non-nitrated compounds are explored for therapeutic potential.
Purpose of the Study:
- To synthesize and evaluate the in vitro and in vivo anticancer activity of novel nitrated and non-nitrated compounds.
- To identify potent compounds with high antiproliferative activity against human cancer cell lines.
- To investigate the mechanism of action and selectivity of the synthesized compounds.
Main Methods:
- Synthesis of 27 nitrated and non-nitrated compounds.
- In vitro evaluation of growth inhibitory activity on three human cancer cell lines.
- Cytotoxicity assessment on Vero cell line for selectivity.
- In vivo studies in mice bearing Ehrlich solid tumors for selected compounds.
Main Results:
- Fourteen compounds inhibited >50% of cancer cell growth; five showed high antiproliferative activity (IC50 < 8.5 μM).
- Active compounds featured a good leaving group (bromide or chloride) at the benzylic position, suggesting alkylating properties.
- Compounds 3 and 24 demonstrated significant in vivo antitumor effects in mice.
Conclusions:
- The synthesized compounds, particularly those with alkylating properties, show promise as anticancer agents.
- Compounds 3 and 24 warrant further investigation as potential therapeutic candidates for cancer treatment.
Related Concept Videos
01:202° Amines to N-Nitrosamines: Reaction with NaNO2
5.9K
Secondary amines react with nitrous acid to form N-nitrosamines, as depicted in Figure 1. Nitrous acid, a weak and unstable acid, is formed in situ from an aqueous solution of sodium nitrite and strong acids, such as hydrochloric acid or sulfuric acid, in cold conditions. In the presence of an acid, the nitrous acid gets protonated. The subsequent loss of water results in the formation of the electrophile known as nitrosonium ion.
5.9K
01:20Electrophilic Aromatic Substitution: Nitration of Benzene
10.0K
The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid.
10.0K
01:26Physical Properties of Amines
4.7K
Amines with low molecular weight are usually gaseous at room temperature, while those with high molecular weight are liquid or solids in nature. Usually, low molecular weight amines have a rotten fish-like smell. Diamines typically have a pungent smell. For instance, cadaverine and putrescine, depicted in Figure 1, are two molecules responsible for decaying tissue.
4.7K
01:14Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
3.1K
Treating arylamines with nitrous acid gives aryldiazonium salts that are effective substrates in nucleophilic aromatic substitution reactions. The diazonio group in these salts can be easily displaced by different nucleophiles, yielding a wide variety of substituted benzenes. The leaving group departs as nitrogen gas, and this easy elimination is the driving force for the substitution reaction.
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
3.1K
01:29Preparation of Amines: Reduction of Oximes and Nitro Compounds
5.0K
Oximes can be reduced to primary amines using catalytic hydrogenation, hydride reduction, or sodium metal reduction. The reduction of aliphatic and aromatic nitro compounds to primary amines takes place by either catalytic hydrogenation or by using active metals like Fe, Zn, and Sn in the presence of an acid.
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
Though catalytic hydrogenation can reduce nitrobenzenes, the reduction is nonselective in the presence of other functional groups. For instance, if nitrobenzene contains an aldehyde group,...
5.0K
01:12Preparation of Nitriles
2.8K
One of the common methods to prepare nitriles is the dehydration of amides. This method requires strong dehydrating agents like phosphorous pentoxide or boiling acetic anhydride for converting amides to nitriles. Another reagent namely, thionyl chloride also accomplishes the dehydration of amides, where amide acts as a nucleophile. The first step of the mechanism involves the nucleophilic attack by the amide on the thionyl chloride to form an intermediate. In the next step, the electron pairs...
2.8K