Bortezomib Good Manufacturer supply High Quality 179324-69-7
- Molecular Formula:C19H25BN4O4
- Molecular Weight:384.243
- Appearance/Colour:yellow solid
- Melting Point:122-124 °C
- Refractive Index:1.564
- PKA:9.66±0.43(Predicted)
- PSA：124.44000
- Density:1.214 g/cm3
- LogP:1.56230
Bortezomib (179324-69-7) Usage
Bortezomib, a potent ubiquitin proteasome (26S) inhibitor (Ki=0.6 nM), was launched in the US as a treatment for multiple myeloma. This proteasome is required for the proteolytic degradation of the majority of cellular proteins and is present in all cells. It is required for the control of inflammatory processes, cell cycle regulation and gene expression and is a novel target in cancer treatment. Bortezomib is a N-acyl-pseudodipeptidyl boronic acid and formulated as a mannitol ester. Aldehyde containing peptides are also proteasome inhibitors, but lack chiral stability (racemization) and selectivity against other proteases including cysteine proteases. Replacement of the aldehyde moiety by a boronic acid avoids these shortcomings and provides some measure of selective proteasome inhibition relative to many other serine proteases. It is prepared by coupling the pinanediol ester of leucine boronic acid with N-tert-Bocphenylalanine utilizing O-(1H-benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate (TBTU) as the coupling agent. The tert-Boc protecting group is then cleaved from the dipeptide and pyrazinecarboxylic acid is coupled to form the terminal amide. Hydrolysis of the boronate ester is accomplished via a two-phase transesterification procedure using isobutyl boronic acid and aqueous extraction. In a study of patients who had received at least two prior therapies and demonstrated disease progression on their most recent therapy, about twenty eight percent showed a response to bortezomib. The response lasted a median time of one year. Another trial in 54 patients with relapsed multiple myeloma showed similar responses. It is dosed intravenously at an exposure of 1.3 mg/m2/dose twice weekly for two weeks followed by a 10-day drug-holiday. At therapeutic doses, the plasma drug levels were reported to drop to near detection limits within minutes of intravenous dosing. Based upon an ex vivo proteasome activity assay using blood cells, the pharmacodynamic half-life ranged from 9 to 15 h in patients with advanced malignancies.
How to get the best price on Bortezomib?
Zibo Hangyu Biotechnology Development Co., Ltd is a quality supplier and manufacturer of Bortezomib . You can buy high quality, low price Bortezomib 179324-69-7 here.
Zibo Hangyu Biotechnology Development Co., Ltd. is a comprehensive chemical enterprise focusing on fine chemical products and pharmaceutical intermediates, integrating research and development, production and sales. The company is equipped with advanced equipment quality inspection and research center. At the same time, the company has excellent talents with rich experience in process development and quality control. To provide customers with total solutions from raw material processing to chemical synthesis systems. The company has established a standardized and perfect quality standard system to provide stable and high quality production and service.
Milestones
- 2012yearThe company was founded, began to engage in the production and supply of chemical raw materials
- 2014yearExpand the scale of production, pharmaceutical raw materials production workshop was established
- 2016yearCooperated with domestic and foreign chemical platforms to promote self-produced and high-end pharmaceutical intermediates
- 2019yearIn recent years to participate in the international pharmaceutical raw materials exhibitions
- 2023yearBusiness continues to expand, Production and Sales teams continue to grow
- 2026yearPlans to set up foreign branches
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