A kind of preparation method of romidepsin

A technology of romidepsin and compounds, which is applied in the field of preparation of romidepsin, can solve the problems affecting the production efficiency of romidepsin, not being simple enough, cumbersome steps, etc., and achieve low cost, reduced synthesis steps, and simple operation Effect

Inactive Publication Date: 2016-08-03
HYBIO PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has cumbersome steps and is not easy enough. More importantly, its total liquid phase yield is only about 18%. These problems have always been the main factors affecting the production efficiency of romidepsin.

Method used

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  • A kind of preparation method of romidepsin
  • A kind of preparation method of romidepsin
  • A kind of preparation method of romidepsin

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preparation example Construction

[0050] The invention discloses a preparation method of romidepsin, and those skilled in the art can refer to the content of this article and appropriately improve the process parameters to realize it. In particular, it should be pointed out that all similar replacements and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The method of the present invention has been described through preferred embodiments, and the relevant personnel can obviously make changes or appropriate changes and combinations to the compounds and preparation methods described herein without departing from the content, spirit and scope of the present invention to achieve and Apply the technology of the present invention.

[0051] In the specific embodiment of the present invention, all amino acids coupled with protecting groups can be obtained commercially. The protected amino acids in the present invention are purchased from Yujie...

Embodiment 1

[0055] Embodiment 1: the preparation of formula 1 compound

[0056] Weigh 2g of CTCResin with a substitution degree of 0.5mmol / g (synthesis scale: 1mmol), add it to a solid-phase reaction column, wash twice with DMF, and swell the resin with DMF for 30 minutes, then weigh 1.26g of 3-hydroxy-7-(tri Benzyl)mercapto-4-heptenoic acid was dissolved in DMF, activated by adding 0.6mL DIPEA in an ice-water bath, then added to the above-mentioned reaction column equipped with resin, and reacted for 2 hours. The reaction was completed, and the compound of formula 1 was obtained by washing with DMF 6 times.

Embodiment 2

[0057] Embodiment 2: the preparation of formula 2 compound

[0058] Dissolve 1.01gFmoc-Val-OH, 0.38gHOBt, and 0.03gDMAP in a mixed solution of DMF and NMP with a volume ratio of 1:1, add 0.3mLDIC to activate it under an ice-water bath, and then add it to the solid-phase reaction column in Example 1 and Formula 1 Compound reaction, reaction at room temperature for 2 hours (the end point of the reaction is determined by the ninhydrin method, if the resin is colorless and transparent, the reaction is complete, and the resin develops color, indicating that the reaction is incomplete, and another coupling reaction is required for 1 hour). The Fmoc protecting group was then removed with DBLK and washed 6 times with DMF.

[0059] Then repeat the above steps of adding coupling agent and DMAP, adding amino acid and removing Fmoc protecting group, and complete Fmoc-L-Thr-OH, Fmoc-D-Cys(Trt)-OH, Fmoc-D-Val-OH one by one Coupling of the polypeptide chain extension to obtain the compound ...

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Abstract

Disclosed is a method for preparing Romidepsin. The present invention relates to the pharmaceutical synthesis. The present invention is based on a method of solid phase synthesis. First, coupling is performed between resin and carboxyl groups on 3-hydroxy-7-mercapto-4-heptenoic acid; then,coupling is performed in sequence between four pieces of amino acid on Romidepsin; then, hydroxyl groups are removed, and disulfide bonds and amido bonds are obtained by means of cyclization, so as to form Romidepsin. The purity the finally finished product is greater than 99%, the total yield is higher than 30%, and method features simple preparation, a short synthesis cycle and low cost, and helps to produce Romidepsin in a large scale.

Description

technical field [0001] The invention relates to the field of pharmaceutical synthesis, in particular to a preparation method of romidepsin. Background technique [0002] Romidepsin, the English name is Romidepsin, its chemical name is (1S,4S,7Z,10S,16E,21R)-7-ethylidene-4,21-diisopropyl-2-oxa-12, 13-dithio-5,8,20,23-tetraazabicyclo[8,7,6]triacos-16-ene-3,6,9,19,22-pentone, the molecular formula is C 24 h 36 N 4 o 6 S 2 , is a bicyclic tetrapeptide with a stable hydrophobic structure, and the unique disulfide bond in its structure is the key group for its activity. In 2009, romidepsin was approved by the US Food and Drug Administration (FDA) for the treatment of cutaneous T-cell lymphoma (CTCL). Its chemical structure is as follows: [0003] [0004] Romidepsin [0005] Romidepsin is an inhibitor of histone deacetylases (HDACs), which enters the cytoplasm through the tumor cell membrane, and the disulfide bond in the cell is reduced to a sulfhydryl group by glutath...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07K5/10C07K1/20C07K1/06C07K1/04
CPCC07K5/0808
Inventor 肖庆潘俊锋马亚平袁建成
Owner HYBIO PHARMA
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