Related Experiment Video
Updated: May 13, 2025
10:46
Gene Digital Circuits Based on CRISPR-Cas Systems and Anti-CRISPR Proteins
Published on: October 18, 2022
1.6K
DNA-Compatible N-Formylation of Amines by Using TMSCF2Br.
Huilin Liao1, Xianfu Fang1,2, Huihong Wang1,2
1Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, Innovative Drug Research Center, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China.
The Journal of Organic Chemistry
|April 15, 2025
Summary
Researchers developed a new N-formylation reagent, TMSCF2Br, for DNA-encoded libraries (DELs). This method enhances drug discovery by protecting amino groups and enabling library diversification.
Area of Science:
- Medicinal Chemistry
- Organic Synthesis
- Drug Discovery
Background:
- DNA-encoded libraries (DELs) are crucial for drug discovery.
- Amino groups are prevalent in DELs, requiring protection.
- N-formylation is an effective amino-protecting strategy and can enhance compound activity.
Purpose of the Study:
- To introduce a novel N-formylation reagent for DEL synthesis.
- To demonstrate its utility in DEL-compatible synthesis and functional group transformation (FGT).
- To showcase orthogonal amino protection strategies.
Main Methods:
- Utilized trimethyl(bromodifluoromethyl)silane (TMSCF2Br) as a novel N-formylation reagent.
- Applied the reagent in DNA-encoded library synthesis.
- Investigated functional group transformations and deprotection strategies.
Main Results:
- TMSCF2Br proved to be a robust N-formylation reagent for DEL synthesis.
- The method enabled library diversification via functional group transformation.
- Efficient removal of formyl groups was achieved, demonstrating orthogonality to Fmoc and Boc.
Conclusions:
- TMSCF2Br is a valuable new reagent for N-formylation in DEL synthesis.
- This approach facilitates library diversification and orthogonal amino protection.
- The findings advance strategies for constructing complex DNA-encoded libraries.
More Related Videos
Related Concept Videos
01:24DNA Isolation
37.3K
DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...
37.3K
02:31Homologous Recombination
49.8K
The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
49.8K
02:05DNA as a Genetic Template
21.4K
Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
21.4K
02:37DNA Damage can Stall the Cell Cycle
9.0K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
9.0K
01:31Proofreading
6.1K
Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore, it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase...
Errors During Replication are Corrected by the DNA Polymerase...
6.1K
02:08Gene Conversion
9.6K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
9.6K