Category: thiazole

78502-71-3,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.78502-71-3,Ethyl 2-(bromomethyl)thiazole-4-carboxylate,as a common compound, the synthetic route is as follows.

Example 7; 2-{(3-phenyl-1H-indazol-1-yl)methyl}thiazole-4-carboxylic acidSodium hydride (added with 40% mineral oil, 9 mg, manufactured by Kanto Chemical Co., Inc.) was added to a solution of 3-phenyl-1H-indazole (40 mg), which had been synthesized according to the literature (T. Edward, C., et al., Tetrahedron, 1991, 47, 9599-9620), in N,N-dimethylformamide (1 mL, manufactured by Kanto Chemical Co., Inc.) under ice cooling, and the mixture was stirred for 5 minutes at the same temperature. Subsequently, ethyl 2-bromomethylthiazole-4-carboxylate (51 mg) synthesized according to the method of the literature (K. Benno, et al., Leibigs. Ann. Chem., 1981, 4, 623-632) was added thereto, and the mixture was stirred overnight at room temperature. Water (1 mL) was added to the reaction solution, and the mixture was extracted with ethyl acetate (3¡Á2 mL), washed with brine (10 mL), and dried (MgSO4). The solvent was then evaporated. The resulting residue was purified by PTLC (hexane:ethyl acetate=2:1), to give 7.2 mg of the title compound. LC-MS: HPLC retention time 4.08 minutes, m/z 336 (M+H), condition A-1.

The synthetic route of 78502-71-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ASAHI KASEI PHARMA CORPORATION; US2010/29733; (2010); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

7210-76-6, Ethyl 2-amino-4-methylthiazole-5-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,7210-76-6

An aqueous solution of 1M-sodium hydroxide (50 ml) was added to an ethanol solution (100 ml) of ethyl 2-amino-4-methylthiazole-5-carboxylate (3.0 g) and the mixture was stirred at room temperature for 26 hours. After distilling off the solvent, acetic acid was added thereto under ice cooling (pH=5). Water was added thereto, the resultant mixture was stirred, and the crystal was collected by filtration. The crystal was washed with water, thereby obtaining 2-amino-4-methyl-thiazole-5-carboxylic acid (2.5 g) as a colorless solid.

7210-76-6 Ethyl 2-amino-4-methylthiazole-5-carboxylate 343747, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; TAISHO PHARMACEUTICAL CO., LTD.; US2012/220767; (2012); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.440100-94-7,2-Bromothiazole-5-carbonitrile,as a common compound, the synthetic route is as follows.

2) 2-Bmothiazole-5-carbonitrile (955 mg, 5.05 mmol) obtained in (1) and diisopropylethylamine (1.80 mL, 10.1 mmol) were dissolved in 1,4-dioxane (20 mL). To the solution was added 1,2-amino-2-methylpropane (1.10 mL, 10.1 mmol) under ice-cooling, and the mixture was allowed to react at room temperature overnight. After the reaction mixture was concentrated, the residue was purified by silica gel column chromatography (chloroform/methanol=10/1) to obtain the title compound (895 mg, 4.57 mmol).yield: 90%<1>H NMR (CDCl3) delta (ppm): 7.64 (1H, s), 3.15 (2H, s), 1.21 (6H, s).APCIMS (m/z): 197 (M + H)<+>

440100-94-7, The synthetic route of 440100-94-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; KYOWA HAKKO KOGYO CO., LTD.; EP1354882; (2003); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

121-66-4, 5-Nitrothiazol-2-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

121-66-4, 5-Nitro-2-aminothiazole (1 eq)And triethylamine (1.2 eq) were dissolved in CH 2 Cl 2,Chloroacetyl chloride (1.2 eq) was added dropwise at 0 C,After the addition was completed, the reaction was continued for 5h,The reaction was checked by TLC, leaving no residue of the starting material and stopping the reaction.To the reaction mixture were added 100 ml of distilled water, the aqueous phase was extracted three times with CH 2 Cl 2 (3 ¡Á 100 ml), the organic phase was washed twice with saturated NaCl (2 ¡Á 100 ml), dried over anhydrous magnesium sulfate and then concentrated by evaporation to obtain a crude product. The crude product was purified by column chromatography on silica gel (methylene chloride: methanol = 150: 1, v: v) to give pure yellow solid in 82% yield.

As the paragraph descriping shows that 121-66-4 is playing an increasingly important role.

Reference£º
Patent; Shandong University; Hu Wei; Li Xun; Wang Chuandong; Li Xing; Wang Yan; Wu Yibo; Lu Di; Wu Hao; Zhang Yunxi; (8 pag.)CN106588813; (2017); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

913836-22-3, Methyl 5-bromothiazole-4-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

913836-22-3, To a stirred solution of methyl 5-bromo-1 ,3-thiazole-4-carboxylate (5.00 g, 22.52 mmol) in THF (80 mL) was added an aq. solution of LiOH.H20 (2.70 g, 1 12.58 mmol) in H20 (20 mL). The reaction mixture was stirred at room temperature for 18 h. DCM (50 mL) and H2O (20 mL) were then added and the reaction mixture acidified to pH~2 with 2 M aqueous HCI, followed by extraction with DCM (3 chi 20 mL). The combined organic extracts were washed with brine (20 mL), dried over MgSCU, filtered and concentrated under reduced pressure to give 5-bromo-1 ,3-thiazole-4-carboxylic acid (3.09 g, 66 % yield) as a yellow solid, which was used without further purification. LC-MS (Method D) 208.3/210.3 [M+H]+; RT 1.36 min

The synthetic route of 913836-22-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; REDX PHARMA PLC; STOKES, Neil; (163 pag.)WO2017/46603; (2017); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.80945-86-4,6-Bromo-2-chlorobenzothiazole,as a common compound, the synthetic route is as follows.,80945-86-4

To a solution of 6-bromo-2-chlorobenzo[d]thiazole (0.8 g, 3.2 mmol) in ethanol (12 mL) was added isopropylamine solution (1 mL) and the mixture was heated for 45 minutes using a Biotage microwave oven at 100C. The reaction mixture was cooled to room temperature. The solvent was removed, the crude product was crystalized from EtOAc and n-heptane mixture to afford the title compound as a solid (0.663 g, 75.8 %). (0500) 1H-NMR (400 MHz, Chloroform-d) d = 7.69 (t, J = 1.3 Hz, 1 H), 7.38 (d, J = 1.3 Hz, 2H), 7.27 (s, 1 H), 5.51 – 5.26 (m, 1 H), 3.92 (h, J = 6.5 Hz, 1 H), 1.33 (d, J = 6.4 Hz, 6H).

As the paragraph descriping shows that 80945-86-4 is playing an increasingly important role.

Reference£º
Patent; AC IMMUNE SA; NAMPALLY, Sreenivasachary; GABELLIERI, Emanuele; MOLETTE, Jerome; (220 pag.)WO2019/134978; (2019); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

121-66-4, 5-Nitrothiazol-2-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 2-amino-5-nitro-1,3-thiazole (0.0015 mol) in dichloromethane, was added triethylamine (1.2 equiv). The reaction mixture was stirred at 5 C for 15 min. After that, a solution of ethyl chlorooxoacetate (0.0018 mol, 1.2 equiv) was added droopingly. The reaction mixture was stirred at room temperature for 6 h. After complete conversion as indicated by TLC, the solvent was removed in vacuo, the residue was neutralized with saturated NaHCO3 solution, and the aqueous layer was extracted with ethyl acetate (3 x 15 mL), washed with water (3 * 20 mL), and dried over anhydrous Na2SO4. The solvent was evaporated in vacuo and the precipitated solids were recrystallized from a mixture of acetonitrile/methanol. Yield: 90%, mp: 252-255 C. 1H NMR (400 MHz, DMSO-d6) delta: 8.67 (1H, s, H-4), 4.32 (2H, q, O-CH2) 1.31 (3H, t, CH3) ppm; 13C NMR (100 MHz, DMSO-d6) delta: 161.7 (C-2), 158.4 (CO-OR), 157.7 (RNH-CO), 143.3 (C-5), 142.7 (C-4), 63.4 (O-CH2), 14.1 (CH3) ppm; MS (FAB+) m/z 246 (M+H+). Anal. Calcd for C7H7N3O5S: C, 34.29; H, 2.88; N, 17.14. Found: C, 34.19; H, 2.83; N, 17.09.

121-66-4, The synthetic route of 121-66-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Nava-Zuazo, Carlos; Chavez-Silva, Fabiola; Moo-Puc, Rosa; Chan-Bacab, Manuel Jesus; Ortega-Morales, Benjamin Otto; Moreno-Diaz, Hermenegilda; Diaz-Coutino, Daniel; Hernandez-Nunez, Emanuel; Navarrete-Vazquez, Gabriel; Bioorganic and Medicinal Chemistry; vol. 22; 5; (2014); p. 1626 – 1633;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

399-74-6, 2-Chloro-6-fluorobenzo[d]thiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Procedure: 50 mg, 0.33 mmol of benzo[c][1,2]oxaborol-1,5(3H)-diol was dissolved in 5 mL of N-methylpyrrolidine, then 75 mg, 0.40 mmol was added. 2-Chloro-6-fluorobenzothiazole and 162.9 mg, 0.5 mmol of cesium carbonate, the mixture was stirred at room temperature overnight, then treated with ammonium chloride, extracted with ethyl acetate, washed with brine, dried and concentrated. Purified by preparative high-performance liquid phase separation to give 5-(6-fluorobenzothiazol-2-oxy)benzo[c][1,2]oxaborol-1(3H)-ol, white solid 15 mg, yield 15%., 399-74-6

The synthetic route of 399-74-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Guangzhou Baiting Pharmaceutical Technology Co., Ltd.; Wu Zhong; Li Jingrong; (16 pag.)CN108997394; (2018); A;,
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Thiazole | chemical compound | Britannica

170235-26-4, Methyl 2-bromothiazole-4-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step 1: 2-Bromo-1,3-thiazole-4-carboxylic Acid A mixture of methyl 2-bromo-1,3-thiazole-4-carboxylate (4.2 g, 18.9 mmol), THF (120 mL) and 1N lithium hydroxide (50 mL) was heated at 70 C. for 1 h. The organic solvent was removed in vacuo. The residual aqueous solution was cooled to 0-5 C. and acidified to pH1 with 1N HCl solution. The tile compound was obtained by filtration, as a white solid. 1H NMR (400 MHz, DMSO-d6) delta ppm 8.43 (s, 1H) 13.30 (s, 1H)., 170235-26-4

As the paragraph descriping shows that 170235-26-4 is playing an increasingly important role.

Reference£º
Patent; Smithkline Beecham Corporation; US2011/124559; (2011); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

38205-66-2, 1-(4-Thiazolyl)ethanone is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

In a 50 ml round-bottomed flask, 8 ml of anhydrous diethyl ether and 0.311 ml (2.2 mmol) of diisopropylamine were added, the solution was cooled to -60C, and then 2.5 N of n-hexane solution of BuLi (2.2 mmol) was added dropwise to the upper reaction system.The reaction system was warmed to 0C and stirred for 15 minutes. Then, drosalactone (500 mg, 2.0 mmol) was added dropwise at -60C.The ether solution was stirred for a further 40 min and then a solution of 4-acetylthiazole (254.3.4 mg, 2.0 mmol) in diethyl ether was added dropwise to the upper reaction system.The reaction system was stirred at this temperature for 50 min. The reaction was quenched with water. The organic layer was separated, washed with saturated sodium chloride, dried over anhydrous sodium sulfate, filtered, and the solvent was distilled off under reduced pressure. The residue was separated by silica gel column chromatography to give CYL-2- QX-3C, yield 55.0%., 38205-66-2

The synthetic route of 38205-66-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Sichuan China National Tobacco Industry Co., Ltd.; Chongqing China National Tobacco Industry Co., Ltd.; Tao Feiyan; Yang Wenmin; Feng Guanglin; Dai Ya; Li Chaorong; Ding Wei; Wang Yao; Zhou Sheng; Zhou Zhigang; Qiu Guangming; Liu Rucan; Zhang Ting; (11 pag.)CN105061418; (2017); B;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica