Epitalon(link:https://www.bloomtechz.com/synthetic-chemical/peptide/epitalon-powder-cas-307297-39-8.html) is a peptide molecule, which is considered to have good biological activity and potential medicinal value. Currently, epitalon peptide research is mainly focused on its application as an anti-aging agent.
Epitalon can prolong the length of telomeres at the ends of chromosomes by activating telomerase, thereby positively affecting the proliferation and regeneration of stem cells. Studies have shown that Epitalon can significantly inhibit harmful oxidative stress, reduce DNA damage, and regulate the expression of insulin-like growth factor-1 (IGF-1), and finally achieve the effect of reducing the speed of aging and prolonging lifespan.
In addition, Epitalon also has immunomodulatory and neuroprotective effects. Epitalon can enhance human immunity and promote the body's recognition and clearance of heterogeneous and self-antigens. In addition, Epitalon can also reduce neuronal cell death and neurodegeneration, thereby achieving neuroprotective effects. Epitalon also has anti-cancer effects, and exerts its effects by regulating cell cycle, promoting cell apoptosis, and inhibiting tumor cell proliferation.
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Epitalon is a body enhancer, a polypeptide compound composed of four amino acids alanine (Ala), glutamic acid (Glu), asparagine (Asp) and lysine (Lys). The synthesis methods of Epitalon are mainly divided into chemical synthesis and biosynthesis.
Chemical synthesis method:
Epitalon is a peptide composed of four amino acids with the molecular formula C14H22N4O9. Epitalon can promote the release of human growth hormone, thereby helping to delay aging, improve sleep, and enhance immunity.
1. Reactant preparation:
The reactants for the synthesis of Epitalon include four amino acids, alanine (Ala), glutamic acid (Glu), asparagine (Asp) and lysine (Lys), as well as acylating reagents such as Boc-Lys-OtBu and Asp( OtBu) 2 and so on. The purity of these amino acids and reagents must be higher than 99%, otherwise the quality of the product will be affected.
2. Chemical Synthesis Steps
2.1 Synthesis of alanine-4-hydroxybutyric anhydride (Ala-Hyp):
First, mix alanine (Ala) and 4-hydroxybutyric anhydride (Hyp-OtBu), and carry out acylation reaction with an activator such as DCC, EDC, etc. under anhydrous environment to generate alanine-4-hydroxybutyric anhydride (Ala-Hyp). The final product was white crystals with >95% purity.
2.2 Synthesis of Ala-Hyp-Glu-OtBu:
The synthesized alanine-4-hydroxybutyric anhydride and glutamic acid-butyrate (Glu-OtBu) were mixed in proportion, and then underwent multiple condensation reactions in anhydrous environment to obtain Ala-Hyp-Glu-OtBu. The final product is a white powder with a purity >95%
2.3 Synthesis of Epitalon:
Add Asp(OtBu)2 and Boc-Lys-OtBu into the condensation reaction system in the order designed in advance, and undergo multiple condensation reactions to obtain Epitalon. The process is as follows:
a. Deprotection group reaction:
First, the Asp(OtBu)2 was deprotected, and the protective group of Asp(OtBu)2 was removed using sodium hydroxide (NaOH) and trichloroacetic acid (TCA) to generate Asp structural units and release BuOt at the same time. The reaction time was 1 hour, and the temperature was room temperature. After the reaction, carry out acid-base neutralization, add a large amount of saturated sodium chloride solution, then precipitate with ethanol and dry in vacuum to obtain Asp as a white solid.
b. Condensation reaction:
Add Asp and Ala-Hyp-Glu-OtBu into the condensation reaction system, and then perform multiple condensation reactions to obtain Epitalon. This process needs to be done through different treatments.
The first step: remove the Ala-Hyp protecting group:
First, Ala-Hyp-Glu-OtBu was dissolved in methanol, trichloroacetic acid (TCA) and water were added to remove the Hyp-OtBu protecting group used to protect the amino group to generate Ala-Hyp-Glu-OH. The reaction needs to be carried out at room temperature, and the reaction solution is treated with NaOH after the reaction to neutralize the acidity.
The second step: remove the Glu-OtBu protecting group:
Then, after thorough drying, Ala-Hyp-Glu-OH was mixed with Boc-Lys-OtBu, trichloroacetic acid and water were added again, and the reaction was performed at room temperature. This reaction removes the Glu-OtBu protecting group to generate Ala-Hyp-Glu-Lys(Boc)-OtBu.
The third step: remove the Lys protecting group:
Finally, adding trichloroacetic acid, water and methanol removes the Boc-Lys-OtBu protecting group to generate Epitalon. The reaction needs to be carried out at room temperature, and the reaction solution is treated with NaOH after the reaction to neutralize the acidity.
3. Result analysis:
The Epitalon product is finally obtained, which can be characterized and purified by different analytical methods. For example, parameters such as purity, impurities and weight can be determined using purification methods such as the European Pharmacopoeia (EP) or the United States Pharmacopeia (USP).
4. Summary:
Epitalon is a body booster composed of the four amino acids alanine, glutamic acid, asparagine and lysine. The chemical synthesis method of Epitalon mainly includes solid-phase synthesis method and liquid-phase synthesis method, which need to link various amino acids together through multi-step reactions. This process requires careful control of reaction conditions and purification techniques to ensure high-purity products.
Biosynthetic method:
The biosynthesis method is to use the biocatalysis of microorganisms or synthetic enzymes to prepare Epitalon, including fermentation and enzyme catalysis.
1. Fermentation method: Fermentation method is a biosynthetic method using transgenic microorganism Escherichia coli to express Epitalon. First, put the Epitalon gene sequence into Escherichia coli and mass-culture it for expression. Then, various purification techniques such as ion exchange chromatography and gel chromatography are used to finally obtain pure products. Specific steps are as follows:
1.1 Select the appropriate host bacteria:
In order to synthesize Epitalon, it is necessary to select a suitable host strain for expression. Commonly used host bacteria include Escherichia coli (Escherichia coli), yeast (Saccharomyces cerevisiae) and fungi (Aspergillus oryzae). When selecting host bacteria, it is necessary to consider whether the host bacteria have the ability to efficiently synthesize proteins, whether they can fold and modify proteins correctly, and whether they can produce high-yield target products.
1.2 Design gene sequence and clone:
After the host bacteria are selected, the Epitalon gene sequence (including alanine, glutamic acid, asparagine and lysine base sequences) needs to be inserted into the host bacteria through DNA recombination technology. Typically, the gene sequence is cloned into an expression vector that includes elements such as promoter and terminator sequences and a selectable antibiotic marker.
1.3 Expression and purification:
After the cloning is completed, the expression vector is transformed into the host bacteria, and then cultured. During the cultivation process, the host bacteria will synthesize Epitalon according to the gene sequence in the expression vector. Once the product is produced in sufficient quantity, it can be isolated from the cells by different purification methods and high purity Epitalon is obtained.
2. Enzyme-catalyzed method: The enzyme-catalyzed method is to synthesize Epitalon by linking different amino acids with various enzymes. For example, L-glutamate-5-aminase is used to catalyze the reaction of glutamate and butyrate to synthesize Glu-OtBu. Then, use L-asparaginase to catalyze the condensation reaction of asparagine and Ala-Hyp-Glu-OtBu to obtain Epitalon.
The synthesis methods of Epitalon are mainly divided into chemical synthesis and biosynthesis. Chemical synthesis is currently the most commonly used Epitalon synthesis method. Biosynthesis is to prepare Epitalon through the biocatalysis of microorganisms or synthetic enzymes, including fermentation and enzyme catalysis. Although biosynthetic methods have great potential, further research and optimization are still needed. Epitalon is a potential drug with broad application prospects, which can be used in the fields of anti-aging, immune regulation, neuroprotection and treatment of cancer. At the same time, Epitalon can also be used as a health food and health care product to help consumers resist aging, enhance immunity, and reduce the risk of disease. Although the research on Epitalon is still in its infancy, it is believed that with the in-depth research on its mechanism and function, Epitalon will become an important medicine and health care product.