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Synthesis and production process of anti-cancer medicament bis(4-fluorobenzyl) trithioether and organic trithioether derivative

A technology of lepisol and process flow, which is applied in the field of synthesis and production technology of aromatic ring-substituted organic trisulfide derivatives, and can solve problems such as complex synthetic routes, unstable synthesis formation, difficult separation and purification of trisulfide derivatives, etc. Achieve the effect of improving the separation and purification process

Inactive Publication Date: 2010-07-28
ACEA BIOSCI INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Although some workers have reported some methods for the synthesis of trisulfide derivatives, these synthetic routes usually require multiple steps of synthesis and / or form unstable, toxic intermediates or starting materials
In addition, the synthetic routes of many documents are complicated, and the mixture of products or by-products is formed, which makes it difficult to separate and purify the desired trisulfide derivatives to obtain good yields.

Method used

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  • Synthesis and production process of anti-cancer medicament bis(4-fluorobenzyl) trithioether and organic trithioether derivative
  • Synthesis and production process of anti-cancer medicament bis(4-fluorobenzyl) trithioether and organic trithioether derivative
  • Synthesis and production process of anti-cancer medicament bis(4-fluorobenzyl) trithioether and organic trithioether derivative

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specific Embodiment approach 1

[0158] Specific embodiment 1 Detailed production process flow of fluperazine synthesis

[0159] Starting materials and reagents:

[0160] The starting materials and reagents required for the synthesis of fluloperidol are listed in Table 1.

[0161] Table 1. Starting materials and reagents

[0162]

[0163] Detailed process flow:

[0164] 1) Install a mechanical stirrer and a dropping funnel in a 5L (or 10L) three-neck round-bottom flask (or S212B double-layer glass reactor with variable frequency and constant speed) and feed nitrogen. respectively will go through 3 1500ml of n-hexane and 500ml of dichloromethane dried over molecular sieves were added to the reaction flask, and 643.5ml (4.386mol) of N-trimethylsilimidazole was added under stirring at room temperature. After the solution was evenly stirred, 139.4 ml (2.194 mol) of sulfur dichloride was slowly added dropwise at room temperature under the protection of nitrogen and constant stirring for 1 hour. A large am...

specific Embodiment approach 2

[0172] Specific embodiment 2 Detailed production process flow of fluperazine synthesis

[0173] Starting materials and reagents:

[0174] The starting materials and reagents required for the synthesis of fluloperidol are listed in Table 2.

[0175] Table 2. Starting materials and reagents

[0176]

[0177] Detailed process flow:

[0178] 1) Install a mechanical stirrer and a dropping funnel in a 50L reactor and feed nitrogen into it, and pass through 3 18800ml of n-hexane and 5300ml of dichloromethane dried by molecular sieves were added to the reaction flask, and 4158ml (27.49mol) of N-trimethylsilimidazole was added under stirring at room temperature. After the solution was evenly stirred, 852 ml (13.41 mol) of sulfur dichloride was slowly added dropwise at room temperature under nitrogen protection and constant stirring for one hour. A large amount of white solid formed during the dropwise addition. After the addition was complete, the reaction mixture was stirred ...

specific Embodiment approach 3

[0186] Specific embodiment 3 Detailed production process for the synthesis of fluperazine

[0187] Starting materials and reagents:

[0188] The starting materials and reagents required for the synthesis of fluloperidol are listed in Table 3.

[0189] Table 3. Starting materials and reagents

[0190]

[0191] Process flow:

[0192] 1) Install a mechanical stirrer and a dropping funnel in a 100L reactor and feed nitrogen into it, and pass through 3 36000ml of n-hexane and 11000ml of dichloromethane dried by molecular sieves were added to the reaction flask, and 8880ml (62.52mol) of N-trimethylsilimidazole was added under stirring at room temperature. After the solution was evenly stirred, 1775 ml (27.98 mol) of sulfur dichloride was slowly added dropwise at room temperature under nitrogen protection and constant stirring, and the dropping time was one hour. A large amount of white solid formed during the dropwise addition. After the addition was complete, the reaction ...

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Abstract

The invention relates to a synthesis and production process of an anti-cancer medicament bis(4-fluorobenzyl) trithioether and an organic trithioether derivative. The invention relates to a process flow for synthetizing and producing the anti-cancer medicament bis(4-fluorobenzyl) trithioether and the corresponding trithioether derivative on a large scale. At the same time, the invention also relates to a process flow for separating and purifying the bis(4-fluorobenzyl) trithioether product with high purity and capable of improving stability.

Description

technical field [0001] The invention relates to the synthesis and production process of the anticancer drug fluloperidol, bis(p-fluorobenzyl) trisulfide and related aromatic ring substituted organic trisulfide derivatives. Background technique [0002] Dibenzyl trisulfide (DBTS) is an active polysulfide isolated from the subtropical shrub, Petiveria alliacea, (Phytolaccaceae). This shrub has been reported to have immunomodulatory and antiproliferative activities. See Rosner et al., Biochim. Biophys. Acta (2001), 1540: 166-177; and Mata-Greenwood, et al. Anticancer Res. (2001), 21: 1763-1770 [0003] Further structural optimization of this compound led us to the discovery of a new anticancer drug candidate, fluloperidol, bis(p-fluorobenzyl)trisulfide. See An et al., Bioorg. Med. Chem. Lett. (2006), 16:4826-4829. Therapeutic use of fluloperidol as an anticancer drug has been described. See, PCT / US2005 / 013474 (International Publication WO2005 / 112,933); U.S. Serial No. 11 / 11...

Claims

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Application Information

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IPC IPC(8): C07C319/24C07C323/07A61P35/00
Inventor 安浩云莫小鹏
Owner ACEA BIOSCI INC
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