2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester
Malotilate
CAS: 59937-28-9
Molecular Formula: C12H16O4S2
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Names and Identifiers
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Physico-chemical Properties
| Molecular Formula | C12H16O4S2 |
| Molar Mass | 288.38 |
| Density | 1.3727 (rough estimate) |
| Melting Point | 60.5° |
| Boling Point | 400.61°C (rough estimate) |
| Flash Point | 138.7°C |
| Solubility | soluble in Methanol,Ether,Benzene |
| Vapor Presure | 0.000296mmHg at 25°C |
| Appearance | powder to crystal |
| Color | White to Light yellow |
| Merck | 14,5712 |
| Storage Condition | 2-8°C |
| Refractive Index | 1.4950 (estimate) |
| Physical and Chemical Properties | Light yellow crystal, melting point of about 60.5 deg C. Soluble in benzene, cyclohexane, hexane or ether. Acute toxicity LD50 mice, rats (mg/kg):11400,>6000 oral. |
| Use | Hepatitis adjuvant medication for improvement of liver function in Compensated Cirrhosis |
| In vitro study | In multilayer cultures, Malotilate increased collagenase activity in a concentration-dependent manner in the concentration range of 0.1 to 100 μm without affecting monolayer cells. In injured multilayer cultures, Malotilate increased the secretion of MMP-1 and MMP-3, and also did not affect monolayer cells. Malotilate significantly reduced the invasion of RLE monolayers into C- SST-2 cells. Malotilate can inhibit the increased permeability of RLE monolayers by serum starvation. Malotilate inhibits tumor metastasis by enhancing the intercellular contact of endothelial cells, thereby preventing tumor cells from invading the vascular endothelium. |
| In vivo study | Malotilate inhibits lung metastasis and lung metastasis in rats. In rat liver, Malotilate prevents the increase in serum markers of type III and Type IV collagen synthesis, as well as the accumulation of collagen, laminin and fibronectin. In rat liver, the combination of Malotilate and carbon tetrachloride significantly reduced hydroxyproline accumulation, liver prolyl 4-hydroxylase and liver and serum galactosylhydroxylylsyl glucosyltransferase activities. Malotilate also prevents morphological changes in the liver of rats, such as focal necrosis, fatty infiltration and inflammation. Malotilate also returned almost completely standard liver function tests to normal. In rat liver microsomes, Malotilate decreased CYP2E1 levels and increased CYP2B1 levels, whereas CYP1A expression was not altered. |
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Risk and Safety
| RTECS | OO0970000 |
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Nature
Open Data Verified Data
light yellow crystal, melting point about 60.5 °c. Soluble in benzene, cyclohexane, hexane or ether.
Last Update：2024-01-02 23:10:35
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Preparation Method
Open Data Verified Data
1,3-= thiocyclo-2-thione -4, 5-= carboxylic acid dissolved in nitromethane, heating, then slowly Dropwise add methyl iodide, and continue reflux, after completion of the reaction, 2-methylthio -1,3-= thiolocene iodide was obtained by treatment. Sodium hydride was suspended in Tetrahydrofuran, and diisopropyl malonate was slowly added dropwise under cooling in an ice bath. The reaction was carried out for a certain period of time. The reaction solution was placed in a large amount of ice water, and the formed crystals were collected by filtration, dried, and recrystallized from n-hexane to obtain malotate. Alternatively, the diisopropyl malonate and the carbon sulfide are reacted in dimethyl sulfoxide in the presence of potassium hydroxide, and the resulting product is reacted with 1,1, 1-chloroethane under the action of potassium hydroxide to give malotti ester.
Last Update：2022-01-01 09:23:34
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Preparation solution concentration reference
| 1mg | 5mg | 10mg | |
|---|---|---|---|
| 1 mM | 3.468 ml | 17.338 ml | 34.676 ml |
| 5 mM | 0.694 ml | 3.468 ml | 6.935 ml |
| 10 mM | 0.347 ml | 1.734 ml | 3.468 ml |
| 5 mM | 0.069 ml | 0.347 ml | 0.694 ml |
Last Update：2024-01-02 23:10:35
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Use
Open Data Verified Data
Japan Pesticide Co., Ltd., launched in 1985. Maloester can promote the synthesis of liver cell protein, and has protective effect on animal liver injury caused by carbon tetrachloride, ethyl methionine and galactosamine, which can reduce the necrosis of liver cells and improve the function of liver cells. It is suitable for patients with chronic hepatitis, compensated cirrhosis, advanced schistosomiasis and other chronic liver diseases with hypoalbuminemia. Liver protein metabolism improving drugs. Can activate liver function, inhibit the progress of liver fibrosis.
Last Update：2022-01-01 09:23:35
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Safety
Open Data Verified Data
LD50 mouse, rat (mg/kg):11400, >6000 by mouth.
Last Update：2022-01-01 09:23:35
2-(1,3-Dithiol-2-ylidene)propanedioic acid diisopropyl ester - Reference Information
| biological activity | Malotilate (NKK105) is a liver protein metabolism improving agent. |
| Usage | liver protein metabolism improving drug. Can activate liver function, inhibit the progress of liver fibrosis. It is suitable for the treatment of chronic hepatitis, compensated cirrhosis and advanced schistosomiasis-induced cirrhosis with hypoproteinemia. hepatitis adjuvant medication for the improvement of liver function in compensated cirrhosis. |
| production method | Method 1:44.4g(0.2 mo1)1, 3-dithiole-2-thione -4, 5-dicarboxylic acid was dissolved in 240ml of nitromethane and heated to 80 °c. Then 100ml of methyl iodide was slowly added dropwise, and reflux was continued for 6h after addition. After completion of the reaction, the crystals formed were collected by filtration, washed with 48.4 of diethyl ether, and air-dried to give G of 2-methylthio. 1, 3-dithiocyclo iodide, melting point 114~116 ℃ (decomposition), yield 87.0%. 1.1g(0.03 mol) of 69% sodium hydride was suspended in 30ml of tetrahydrofuran and 5.6g(0.03 mol) of diisopropyl malonate was slowly added dropwise under ice-cooling. When there was no evolution of hydrogen, 8.2g(0.03 mol) of the iodide obtained above was added and refluxed for 1H. The reaction solution was poured into a large amount of ice water, and the formed crystals were collected by filtration, dried, and recrystallized with n-hexane to obtain 6.7g of white crystals of malotinib Ester, melting point 59~60 ℃, the yield was 77.5%. Method 2: diisopropyl malonate and carbon disulfide are reacted in dimethyl sulfoxide in the presence of potassium hydroxide. The resulting product is reacted with 1,1, 1-trichloroethane in the presence of potassium hydroxide to give malotti ester. |
Last Update：2024-04-09 15:16:51
Supplier List
Spot supply
Product Name: Malotilate Visit Supplier Webpage Request for quotationCAS: 59937-28-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
Spot supply
Product Name: Malotilate Visit Supplier Webpage Request for quotationCAS: 59937-28-9
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
View History