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A kind of highly active pt complex and its preparation method and application

A complex and high-activity technology, which is applied in the fields of pharmaceutical formulations, organic active ingredients, platinum-based organic compounds, etc., can solve the problems of restricting clinical use and discounting of therapeutic efficacy, and achieves overcoming cisplatin resistance. The preparation method is simple and easy The effect of good performance and great application prospects

Active Publication Date: 2021-10-29
江苏南创化学与生命健康研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the therapeutic efficacy of cisplatins is greatly compromised by inherent and acquired resistance mechanisms, greatly limiting their wider clinical use

Method used

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  • A kind of highly active pt complex and its preparation method and application
  • A kind of highly active pt complex and its preparation method and application
  • A kind of highly active pt complex and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] Preparation of compound a2:

[0025] Add 3.00 g of cisplatin (10.00 mmol) into 180 mL of hydrogen peroxide (30%-35%) solution, avoid light, heat up to 75°C for 7 h, cool down to room temperature, refrigerate overnight, filter, The filter cake was washed with a small amount of cold water, the solid was collected, and evaporated to dryness under reduced pressure to obtain 2.90 g of compound a2 as a yellow solid with a yield of 87%.

Embodiment 1

[0027] A kind of highly active Pt (IV) complex, its preparation method comprises the steps:

[0028]

[0029] Add 0.42 g compound a2 (1.26 mmol) and 0.80 g compound b (3.80 mmol) to 10 ml DMF solution, then add 1.22 g TBTU (3.80 mmol) and 0.38 g (3.80 mmol) triethylamine, and react at 25°C for 72 h, after the reaction, the solvent was evaporated under reduced pressure, 20 mL of methanol was added, solids were precipitated, filtered, and the filter cake was rinsed with methanol, evaporated to dryness under reduced pressure to obtain a brown solid, complex 1; 1 H NMR, 13 C NMR and MS characterize the brown solid product obtained, and the obtained data are as follows:

[0030] 1 H-NMR (400 MHz, DMSO-d6): δ (ppm) 7.85 (d, J = 1.7 Hz, 2H), 7.78 (d, J = 8.4 Hz, 2H), 7.39 (dd, J = 8.3, 1.8 Hz , 2H), 6.79 (br, 6H), 2.48 (s, 6H).

[0031] 13 C-NMR (400 MHz, DMSO-d6): δ (ppm) 166.86, 153.61, 142.53, 132.10, 128.38, 124.13, 122.98, 122.73, 112.48, 10.00

[0032] ESI-MS(negative ...

Embodiment 2

[0034] A kind of highly active Pt (IV) complex, its preparation method comprises the steps:

[0035]

[0036] Add 0.10 g compound a2 (0.30 mmol) and 0.19 g compound c (0.90 mmol) to 10 ml DMF solution, then add 0.29 g TBTU (0.90 mmol) and 0.09 g (0.90 mmol) triethylamine, and react at 25°C for 72 h, after the reaction, the solvent was evaporated under reduced pressure, 20 mL of methanol was added, solids were precipitated, filtered, and the filter cake was rinsed with methanol, evaporated to dryness under reduced pressure to obtain a brown solid, complex 1; 1 H NMR, 13 C NMR and MS characterize the brown solid product obtained, and the obtained data are as follows:

[0037] 1 H-NMR (400 MHz, DMSO-d6): δ (ppm) δ (ppm) 7.63 (s, 2H), 7.49 (d, J =8.7 Hz, 2H), 7.43 (d, J = 8.9 Hz, 2H) , 6.79 (br, 6H), 2.60 (s, 6H).

[0038] 13 C-NMR (400 MHz, DMSO-d6): δ (ppm) 161.56, 153.72, 141.35, 133.20, 128.72, 127.37, 124.60, 120.58, 112.93, 9.53

[0039] ESI-MS (positive mode, m / z) ...

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Abstract

The invention discloses a highly active Pt(IV) complex, which belongs to the technical field of anticancer chemical drugs; the structure of the complex is shown in general formula (1) or general formula (2): general formula (1) Formula (2) The present invention introduces 6-chloro-3-methylbenzofuran-2-carboxylic acid or 5-chloro-3-methylbenzofuran-2-carboxylic acid into the platinum (IV) complex, which can significantly enhance The platinum(IV) complex is cytotoxic to cancer cells, while still having a strong antitumor effect on cancer cells resistant to cisplatin.

Description

technical field [0001] The invention relates to the technical field of anticancer chemical drugs, in particular to a highly active Pt(IV) complex and its preparation method and application. Background technique [0002] Cisplatin (CDDP) is one of the most effective anti-cancer chemotherapy drugs used to treat various malignant tumors. It mainly kills cancer cells by destroying nuclear DNA. Unfortunately, the therapeutic efficacy of cisplatins is greatly compromised by inherent and acquired resistance mechanisms, greatly limiting their wider clinical use. These problems have also prompted people to continue to seek new platinum-based anticancer drugs to make up for the shortcomings of traditional platinum-based drugs. Contents of the invention [0003] Aiming at the above-mentioned problems in the prior art, the present invention provides a highly active Pt(IV) complex and its preparation method and application. The complexes have high activity on both non-drug-resistant ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/00A61P35/00A61K31/555
CPCC07F15/0093A61P35/00
Inventor 周文斌颜莉郭子建王晓勇
Owner 江苏南创化学与生命健康研究院有限公司
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