Lenalidomide (CAS 191732-72-6): A Comprehensive Product Introduction
Lenalidomide, with the CAS number 191732-72-6, is a remarkable pharmaceutical compound that has gained significant attention in the medical and research fields. This article aims to provide a detailed introduction to Lenalidomide, including its properties, uses, applications in various domains, and preparation methods.
Properties of Lenalidomide
Lenalidomide is a thalidomide analogue with enhanced potency and reduced toxicity compared to its parent compound. Chemically, it is 3-(4-amino-1-oxo-1,3-dihydro-2H-isoindol-2-yl)piperidine-2,6-dione. It has a molecular formula of C₁₃H₁₃N₃O₃ and a molecular weight of 259.26 g/mol. The compound exists as a white to off – white powder, and it is sparingly soluble in water but soluble in organic solvents such as dimethyl sulfoxide (DMSO) and methanol.
Lenalidomide has a relatively stable chemical structure under normal storage conditions. It has a melting point range that can vary depending on the purity of the sample, typically around 269 – 271 °C. The compound has a pKa value that influences its ionization state in different pH environments, which is important for its biological activity and pharmacokinetics.
Uses of Lenalidomide
Medical Uses
One of the primary uses of Lenalidomide is in the treatment of certain types of cancers and blood disorders. It is approved by the U.S. Food and Drug Administration (FDA) for the treatment of multiple myeloma, a cancer of the plasma cells in the bone marrow. Lenalidomide works by modulating the immune system, inhibiting the growth of cancer cells, and promoting apoptosis (programmed cell death) of these cells. It also has anti – angiogenesis properties, which means it can prevent the formation of new blood vessels that tumors need to grow and spread.
In addition to multiple myeloma, Lenalidomide is also used in the treatment of myelodysplastic syndromes (MDS), a group of disorders in which the bone marrow does not produce enough healthy blood cells. Specifically, it is indicated for patients with a subtype of MDS called del(5q) MDS, which is characterized by a deletion in chromosome 5. By restoring normal blood cell production, Lenalidomide can improve the quality of life and survival rates of MDS patients.
Research Uses
Lenalidomide is also widely used in scientific research. In immunology research, it serves as a valuable tool to study the mechanisms of immune regulation. Scientists can use Lenalidomide to investigate how the immune system responds to different stimuli and how it can be modulated to treat diseases. In cancer research, it is used to develop new treatment strategies and to understand the molecular pathways involved in cancer cell growth and survival.
Applications in Various Domains
Pharmaceutical Industry
In the pharmaceutical industry, Lenalidomide is a key ingredient in the formulation of anti – cancer drugs. Pharmaceutical companies invest heavily in the production and development of Lenalidomide – based medications. These drugs are carefully formulated to ensure optimal bioavailability and efficacy. The manufacturing process involves strict quality control measures to meet regulatory standards. For example, the purity of Lenalidomide in pharmaceutical products must be extremely high, typically above 99%.
Biomedical Research
Biomedical researchers use Lenalidomide in a wide range of studies. In pre – clinical trials, it is used to test the effectiveness of new treatment combinations. By combining Lenalidomide with other drugs, researchers hope to find more effective and less toxic treatment options for cancer and other diseases. In cell culture experiments, Lenalidomide is used to study the effects of the compound on cell growth, differentiation, and gene expression.
Clinical Practice
In clinical practice, Lenalidomide is prescribed by oncologists and hematologists. Doctors carefully monitor patients taking Lenalidomide to assess its effectiveness and manage any potential side effects. The dosage of Lenalidomide is individualized based on the patient’s condition, age, and overall health. Regular blood tests are conducted to monitor the patient’s blood cell counts and other parameters.
Preparation Methods of Lenalidomide
Chemical Synthesis
The preparation of Lenalidomide typically involves a multi – step chemical synthesis process. One of the common synthetic routes starts with the reaction of 4 – nitro – phthalic anhydride with piperidine – 2,6 – dione in the presence of a suitable base. This reaction forms an intermediate compound. The nitro group in the intermediate is then reduced to an amino group using a reducing agent such as iron powder in an acidic medium. The final step involves purification of the product through recrystallization or chromatography to obtain high – purity Lenalidomide.
Another synthetic approach may involve the use of different starting materials and reaction conditions. For example, some synthesis methods may use protected amino acids or other derivatives as starting materials to introduce the required functional groups in a more controlled manner. The choice of synthesis method depends on factors such as the availability of starting materials, cost, and the desired purity of the final product.
Quality Control in Preparation
During the preparation of Lenalidomide, strict quality control measures are essential. High – performance liquid chromatography (HPLC) is commonly used to analyze the purity of the product. Other analytical techniques such as nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry are also used to confirm the chemical structure of Lenalidomide. Impurities in the product can affect its safety and efficacy, so it is crucial to keep the impurity levels within acceptable limits.
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