Heterocyclic Building Blocks-Thiazolidine

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5908-62-3,1,1-Dioxo-isothiazolidine,as a common compound, the synthetic route is as follows.

Example 98 Preparation of Intermediate 100 [0785] [0786] To an oven dried 50 mL round-bottom flask, methyl 2-bromo-5-methylbenzoate (352 mg, 1.54 mmol), sultam (236 mg, 1.95 mmol), cesium carbonate (732 mg, 2.25 mmol), palladium acetate (40.4 mg, 0.18 mmol), and Xanphos (136 mg, 0.235 mmol) were added and flask was placed under argon. The reagents were suspended in 8 mL of anhydrous dioxane and mixture was heated at 100 C. overnight. After cooling to room temperature, the reaction mixture was filtered, washing with ethyl acetate. The combined filtrate was concentrated under reduced pressure and resulting film was purified by silica gel column chromatography (25-100% ethyl Acetate in hexanes) to yield intermediate 100 (322 mg, 78%) as a yellow off-white solid. [0787] 1H-NMR (DMSO, 400 MHz): delta 7.75 (d, 1H), 7.44 (m, 1H), 7.35 (m, 1H), 3.89 (s, 3H), 3.81 (t, 2H), 3.28 (t, 2H), 2.55 (m, 2H), 2.39 (s, 3H). [0788] LCMS m/z [M+H]+ C12H15NO4S requires: 270.07. Found 270.12.

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

Reference£º
Patent; Siegel, Dustin; Sperandio, David; Yang, Hai; Sangi, Michael; Parrish, Jay P.; Hui, Hon Chung; US2013/273037; (2013); A1;,
Thiazolidine – Wikipedia
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With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5908-62-3,1,1-Dioxo-isothiazolidine,as a common compound, the synthetic route is as follows.

General procedure: 5-(l -(3-Bromobenzyl)- 5-methyl-lH-l,2,4-triazol-3-yl)-3-(4-(trifluoromethoxy) phenyl)- 1,2,4-oxadiazole (40 mg, 0.0833 mmol), Cs2C03 (54 mg, 0.167 mmol), XPhos (16 mg, 0.0333 mmol), Pd2(dba)3 (15 mg, 0.0167 mmol), and N’,N’-dimethylethane-l,2-diamine were placed in a microwave reaction vessel and dioxane (1 mL), which had been degassed by bubbling N2 through it for 10 min, was added. The reaction was heated by microwave irradiation at 120 C for 1 h. Purification by prep-HPLC (MeCN/H20 30% -70% MeCN containing 0.1% TFA) afforded N,N-dimethyl-2- ((3-((5-methyl-3-(3-(4-(trifluoromethoxy)phenyl)-l,2,4-oxadiazol-5-yl)-lH-l,2,4- triazol-l-yl)methyl)phenyl)amino)ethanaminium trifluoroacetate as a thin film (1.5 mg, 4%).

5908-62-3 1,1-Dioxo-isothiazolidine 642157, athiazolidine compound, is more and more widely used in various.

Reference£º
Patent; JONES, Philip; DIFRANCESCO, Maria, Emilia; PETROCCHI, Alessia; CARROLL, Christopher, L.; MARSZALEK, Joe; CZAKO, Barbara; JOHNSON, Ryan; THEROFF, Jay; WO2014/31936; (2014); A2;,
Thiazolidine – Wikipedia
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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.

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;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

1438-16-0, 3-Aminorhodanine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: O-phenylenediamines (0.065 mol) was heated with N-aminorhodanine (0.065 mol) in xylene (50 ml) for 5 hours. The obtained residue was filtered and was crystallized from aqueous alcohol (charcoal). The obtained solid was recrystallized in ethanol.

As the paragraph descriping shows that 1438-16-0 is playing an increasingly important role.

Reference£º
Article; El Kihel; Ait Sir; Jebbari; Ahbala; Guesmi; Bauchat; Oriental Journal of Chemistry; vol. 32; 4; (2016); p. 1765 – 1768;,
Thiazolidine – Wikipedia
Thiazolidine – ScienceDirect.com

1438-16-0, 3-Aminorhodanine is a thiazolidine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: General procedure for synthesis of N-substituted-rhodanine derivatives RhAs: To a solution of aldehydes (3a-3h, 1.0 equiv.) in ethanol (10 mL) was added slowly to the solution of 3-amino-2-thioxothiazolidin-4-one (2, 1.0 equiv.) in EtOH. The reaction mixture was stirred at room temperature without a catalyst for between 4 h and 12 h, and was monitored by TLC. After, the mixture product was recrystallized from EtOH. After recrystallization, N-substituted-rhodanine derivatives (RhAs) were obtained as follows.

The synthetic route of 1438-16-0 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Bayindir; Caglayan, Cuneyt; Karaman, Muhammet; Guelcin, ?lhami; Bioorganic Chemistry; vol. 90; (2019);,
Thiazolidine – Wikipedia
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