Category: thiazolidine

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.7025-19-6,3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,as a common compound, the synthetic route is as follows.,7025-19-6

V-(2-Nitrophenyl)-3-(4-oxo-2-thioxothiazolidin-3-yl)propanamide (34b). To a suspension of 33 (100 mg, 0.48 mmol) in 4 mL of dry dichloromethane, thionyl chloride (40 mu, 0.58 mmol) was added. The reaction was monitored by TLC and after the disappearance of the starting material, 2-nitroaniline (80 mg, 0.58 mmol) was added. The resulting mixture was stirred at room temperature for 2 hours. H20 was added to the reaction mixture, then it was extracted with EtOAC, dried over Na2S04, concentrated under reduced pressure and purified with flash chromatography (hexane/EtOAc:l/l) to give the desired product 34b (130 mg, yield 84%) as a yellow solid.Mp 170-171 C. 1H NMR (400 MHz, CDC -d) delta (ppm) 10.27 (s, 1H), 8.64-8.62 (m, 1 H), 8.15-8.13 (m, 1H), 7.60-7.56 (m, 1H), 7.15-7.11 (m, 1H), 4.45 (t, J = 8, 2H), 3.94 (s, 2H), 2.22 (t, J = 8, 2H). 13C NMR (100 MHz, OMSO-d6) delta (ppm) 206.19, 173.99, 168.83, 136.04, 134.16, 128.02, 125.78, 123.59, 122.38, 40.28, 35.43, 34.87. MS (ESI) m/z: 324.4 [M-H]~. Anal. Calcd for (Ci2HiiN304S2): C, 44.30; H, 3.41; N, 12.91. Found: C, 44.36; H, 3.38; N, 12.90.

7025-19-6 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid 81492, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; CONSIGLIO NAZIONALE DELLE RICERCHE; UNIVERSITA DEGLI STUDI DI SIENA; RADI, Marco; BOTTA, Maurizio; FALCHI, Federico; MAGA, Giovanni; BALDANTI, Fausto; PAOLUCCI, Stefania; WO2011/39735; (2011); A2;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.185137-29-5,(S)-4-Phenylthiazolidine-2-thione,as a common compound, the synthetic route is as follows.,185137-29-5

General procedure: To thiazolidine-2-thiones (1.0 equiv.) in THF (5.5 mL/mmol), 60% NaH dispersion in mineral oil (1.2 equiv.)was slowly added at 0 C. The reaction mixture was stirred for 15 min at 0 C before acetyl chloride (1.2 equiv.)was added dropwise. The reaction mixture was stirred for 30 min at 0 C, upon which it was warmed to roomtemperature and allowed to stir for another 2 h. The reaction was quenched with saturated NH4Cl (3 mL/mmol)and the layers were separated. The aq. layer was extracted with EtOAc (2 x 4 mL/mmol) and the combinedorganic layers were dried (Na2SO4),filtered, and concentrated in vacuo. The crude product was purified bycolumn chromatography on silica (hexanes/EtOAc 8:2) to afford the title compounds as yellow oils.

As the paragraph descriping shows that 185137-29-5 is playing an increasingly important role.

Reference£º
Article; Tungen, J¡ãrn E.; Aursnes, Marius; Hansen, Trond Vidar; Tetrahedron Letters; vol. 56; 14; (2015); p. 1843 – 1846;,
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2682-49-7, Thiazolidin-2-one is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,2682-49-7

EXAMPLE 5 Preparation of 3-(2-nitrophenylmethyl)-2-thiazolidinone A mixture containing 3.09 g (0.03 mol) of 2-thiazolidinone, 11.2 g of potassium carbonate, 1.8 g of potassium hydrogen carbonate, 0.5 ml of water, 30 ml of methyl isobutyl ketone and 6.5 g (0.03 mol) of nitrobenzyl bromide is refluxed for 6 hours, then cooled down and thoroughly mixed with 50 ml of water. The mixture is filtered and the clear filtrate is separated. The organic phase is washed with 10 ml of water, dried and evaporated. The oily residue is recrystallized from ethanol to give 2.65 g (37.0%) of the title compound, m.p.: 92-93 C.

The synthetic route of 2682-49-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Richter Gedeon Vegyeszeti Gyar Rt.; US4937252; (1990); A;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1438-16-0,3-Aminorhodanine,as a common compound, the synthetic route is as follows.

To a solution of 3-amino-2-thioxo-thiazolidin-4-one (623 mg, 4.21 mmol, 1.00 equiv.) in 1 ,4- dioxane (20 mL) was added 2-chloro-4-[5-(3,5-dichloro-4-fluoro-phenyl)-5-(trifluoromethyl)-4H- isoxazol-3-yl]benzoyl chloride (from step 1 , 2.00 g, 4.21 mmol, 1 .00 equiv.) and the mixture was stirred at 80C for 5 h. After cooling, water was added and the mixture was extracted with ethyl acetate. Combined organic layers were dried over Na2S04 and concentrated in vacuum. The residue was purified via flash chromatography on silica gel to yield the title compound (1.9 g, 77%). (0401) H-NMR (500 MHz, CDCI3): delta (delta) = 3.72 (d, 1 H), 4.1 1 (d, 1 H), 4.13 (m, 2H), 7.59 (m, 2H), 7.66 (d, 1 H), 7.76 (s, 1 H), 7.91 (d, 1 H), 8.20-8.90 (br. s, 1 H) ppm., 1438-16-0

1438-16-0 3-Aminorhodanine 74033, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; BASF SE; KOERBER, Karsten; HUWYLER, Nikolas; NARINE, Arun; GOCKEL, Birgit; MCLAUGHLIN, Martin John; BRAUN, Franz-Josef; (57 pag.)WO2018/192793; (2018); A1;,
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A common heterocyclic compound, the thiazolidine compound, name is 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,cas is 7025-19-6, mainly used in chemical industry, its synthesis route is as follows.

7025-19-6, General procedure: To a mixture of 5-chloroisatin (182 mg, 1.0 mmol) and N-carboxyethylrhodanine (205 mg, 1.0 mmol) was added DMSO-d6 (3.0 mL). The reaction was followed by proton NMR until the disappearance of the starting material.

As the rapid development of chemical substances, we look forward to future research findings about 7025-19-6

Reference£º
Article; Xue, Fengtian; MacKerell Jr., Alexander D.; Heinzl, Geoffrey; Hom, Kellie; Tetrahedron Letters; vol. 54; 13; (2013); p. 1700 – 1703;,
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.7025-19-6,3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid,as a common compound, the synthetic route is as follows.,7025-19-6

To a mixture of 3-(4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (205 mg, 1.0 mmol), H2N-Gly-OEt hydrochloride (140 mg, 1.0 mmol) and EDC (192 mg, 1.0 mmol) in DMF (5.0 mL) was added triefhylamine (140 muEpsilon, 1.0 mmol). The reaction mixture was stirred at room temperature for 16 h, and then concentrated. The crude product was purified by flash chromatogrphy (EtOAc/Hexanes 1 :2- 1 :1) to give FX-3019 as a white solid (276 mg, 0.95 mmol, 95%): :H NMR (400 MHz, DMSO-de) delta 1.25-1.30 (t, 7 = 6.8 Hz, 3H), 2.64-2.70 (t, 7 = 7.6 Hz, 2H), 4.01 (s, 3H), 4.20-4.25 (dd, 7= 7.2, 14.0 Hz, 2H), 4.25-4.35 (t, 7 = 8.0 Hz, 2H), 6.04 (s, 1H); 13C NMR (100 MHz, DMSO-de) delta 14.1, 32.7, 35.4, 40.6, 41.4, 61.7, 169.4, 169.8, 173.6, 201.0; LC-TOF (M+H+) calcd for C10H15N2O4S2 291, found 291. Chemical Formula: C18H16BrN305S2

7025-19-6 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid 81492, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; MELNICK, Ari; CERCHIETTI, Leandro, Carlos, A.; CARDENAS, Mariano, G.; XUE, Fengtian; MACKERELL, Alexander, D.; WO2014/204859; (2014); A2;,
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1438-16-0, 3-Aminorhodanine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

EXAMPLE 37 3-[(1,3-Benzodithiol-2-ylidene)amino]-2-thioxo-4-thiazolidinone A solution of N-(1,3-benzodithiol-2-ylidene)-N-methylbenzaminium iodide (3.85g), N-aminorhodanine (1.48g) and anhydrous sodium carbonate (530 mg) in 100 ml of anhydrous dimethylformamide is heated at 120 C under a nitrogen atmosphere for 2 hours. The reaction mixture is then poured into 500 ml of ice/water and left stirring at 4 C for 2 hours. The resultant precipitate is collected by filtration and washed several times with cold water. The solid is air dried to yield 2.0g of crude product. This product is recrystallized from dimethylformamide to yield 1.9g of the title compound, melting point 295-300 C. Anal. Calc’d. for C10 H6 N2 OS4: C, 40.25; H, 2.03; N, 9.39; S, 42.98. Found: C, 40.27; H, 2.20; N, 9.30; S, 43.05.

1438-16-0, 1438-16-0 3-Aminorhodanine 74033, athiazolidine compound, is more and more widely used in various fields.

Reference£º
Patent; E. R. Squibb & Sons, Inc.; US4104467; (1978); A;,
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7025-19-6, 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,7025-19-6

General procedure: To a mixture of aldehyde (1.0 mmol), 3-(4-oxo-2-thioxothiazolidin-3-yl)propanoic acid (205 mg,1.0 mmol) or 3-(2-(1H-tetrazol-5-yl)ethyl)-2-thioxothiazolidin-4-one (229 mg, 1.0 mmol) and NaOAc (820 mg, 10.0 mmol) was added acetic acid (5.0 mL). The reaction was allowed to stir at 105 C for 0.5h – 12h, then cooled to room temperature. To the reaction was added water (15mL). The resulting mixture was sonicated to give yellow-orange slurry. After filtration, the solid was washed with water (75 mL) and dried under high vacuum to yield the corresponding product as a red fine powder.

The synthetic route of 7025-19-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Liang, Dongdong; Robinson, Elizabeth; Hom, Kellie; Yu, Wenbo; Nguyen, Nam; Li, Yue; Zong, Qianshou; Wilks, Angela; Xue, Fengtian; Bioorganic and Medicinal Chemistry Letters; vol. 28; 6; (2018); p. 1024 – 1029;,
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5908-62-3, 1,1-Dioxo-isothiazolidine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,5908-62-3

A 50 ml flask was charged under nitrogen with 3-bromo-5-nitro-benzoic acid methyl ester (D11) (1 g, 3.8 mmol, 1 equiv), Cs2CO3 (536 mg, 4.4 mmol, 1.2 equiv) tris (DIBENZYLIDENEACETONE) DIPALLADIUM (0) (5 mg, 0.0055 mmol, 0.0154 equiv), Xantphos (10 mg, 0.014 mmol, 0.04 equiv) and toluene (15 ML). Isothiazolidine 1,1-dioxide (D22a) (536 mg, 4.4 mmol, 1.1 equiv) was then added and the resulting mixture was stirred at 90C for 16 hours then cooled to room temperature and diluted with H20 and AcOEt. The layers were separated, the aqueous phase diluted with a saturated aqueous NAHC03 solution and extracted with AcOEt. The combined organic phases were dried over MGS04 and concentrated in vacuo to give 3- (1, 1-DIOXO-116-ISOTHIAZOLIDIN-2-YL)-5-NITRO-BENZOIC acid methyl ester (D15) (187 mg, 16%) as a yellow solid. [M+H+NH3] + = 318.0, RT = 2. 81 min

The synthetic route of 5908-62-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2004/50619; (2004); A1;,
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7025-19-6,7025-19-6, 3-(4-Oxo-2-thioxothiazolidin-3-yl)propanoic acid is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a mixture of tetrazoloquinoline aldehyde 1a (1 mmol) and rhodanine 2a (1 mmol), 20 mol % [HDBU][HSO4] was added, and the mixture was heated on an oil bath at 80 C for 30 min. During the reaction process, the mixture was solidified and after completion of the reaction (monitored by TLC), the reaction was cooled to room temperature, water was added and stirred for 5 min. The solid obtained was removed by filtration and recrystallized from EtOH-DMF. The filtrate was dried under reduced pressure to recover ionic liquid and reused in subsequent cycles.

As the paragraph descriping shows that 7025-19-6 is playing an increasingly important role.

Reference£º
Article; Subhedar, Dnyaneshwar D.; Shaikh, Mubarak H.; Nawale, Laxman; Yeware, Amar; Sarkar, Dhiman; Khan, Firoz A. Kalam; Sangshetti, Jaiprakash N.; Shingate, Bapurao B.; Bioorganic and Medicinal Chemistry Letters; vol. 26; 9; (2016); p. 2278 – 2283;,
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