Category: thiazole

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.5304-21-2,6-Bromo-2-methylbenzo[d]thiazole,as a common compound, the synthetic route is as follows.,5304-21-2

In dioxane (10 mL) were suspended under nitrogen atmosphere 6-bromo-2-methylbenzothiazole 53 (700 mg, 3.07 mmol), Pd2(dba)3 (141 mg, 0.153 mmol) and Xantphos (178 mg, 0.307 mmol). To the obtained mixture was added thiophenol sodium salt (487 mg, 3.68 mmol). It was stirred at 130 ¡ãC for 15 minutes under microwave irradiation. .To the reaction mixture were added 0.1N hydrochloric acid and ethyl acetate. After extraction, the organic layer washed with saturated sodium bicarbonate aqueous solution and brine, respectively and dried over magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified with column chromatography to give Compound 55 (587 mg, 2.28 mmol). 1H-NMR (CDCl3) delta: 2.85 (s, 3H), 7.24-7.39 (m, 5H), 7.46 (dd, J= 8.6, 1.8 Hz, 1H), 7.83 (dd, J= 1.8, 0.5 Hz, 1H), 7.89 (d, J=8.6 Hz, 1H).

The synthetic route of 5304-21-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Shionogi & Co., Ltd.; EP2351744; (2011); 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.61296-22-8,2-Amino-5-bromothiazole monohydrobromide,as a common compound, the synthetic route is as follows.

A mixture of 182 (113 mg, 044 mmoi), Ci (50 mg, 022 mmoi) and cesium carbonate (143 mg, 0.44 mmoi) in MeCN (2 rnL) is stirred at 70 C for 1.5 hours. The mixture is then cooled to room temperature, diluted with DCM (10 niL), washed with water (10 rnL 3), dried over anhydrous sodium sulfate, and concentrated to give crude C25 as a brown solid (80 mg, 56% yield). (MS: [M¡ÂH] 330,1), 61296-22-8

The synthetic route of 61296-22-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; IMMUNE SENSOR, LLC; THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM; ZHONG, Boyu; SUN, Lijun; SHI, Heping; LI, Jing; CHEN, Chuo; CHEN, Zhijian; (270 pag.)WO2017/176812; (2017); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

80945-86-4, 6-Bromo-2-chlorobenzothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,80945-86-4

Intermediate 32:6-bromo-W-{6-chloro-4-[(2-methyl-1 H-imidazol-1 -yl)methyl]-2-pyridinyl}-1 ,3- ineUnder an atmosphere of nitrogen, an ice-cooled, stirred suspension of 6-chloro-4-[(2- methyl-1 H-imidazol-1-yl)methyl]-2-pyridinamine [intermediate 34] (1 .6g, 7.19mmol) in anhydrous tetrahydrofuran (40ml_) was treated with 6-bromo-2-chloro-1 ,3-benzothiazole (1.96g, 7.90mmol) and, portionwise over 5 minutes, with sodium hydride (60% in oil) (0.632g, 15.8mmol). After 30 minutes the mixture was heated to 50C for 6 hours. The cooled mixture was treated with saturated aqueous ammonium chloride (30ml_) and tetrahydrofuran (30ml_). The resulting precipitate was filtered off, washed with ethyl acetate and diethyl ether and dried to afford the title compound (2.2g, 5.06mmol, 70% yield). LCMS (Method A): Rt 0.94 minutes; m/z 434,436 (MH+).

The synthetic route of 80945-86-4 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GLAXO GROUP LIMITED; ALDER, Catherine Mary; BALDWIN, Ian Robert; BARTON, Nicholas Paul; CAMPBELL, Amanda Jennifer; CHAMPIGNY, Aurelie Cecile; HARLING, John David; MAXWELL, Aoife Caitriona; SIMPSON, Juliet Kay; SMITH, Ian Edward David; TAME, Christopher John; WILSON, Caroline; WOOLVEN, James Michael; WO2011/110575; (2011); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

693-95-8, 4-Methylthiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,693-95-8

Step 1 : 2-(aminomethyl)-5-(4-methyl-l,3-thiazol-5-yl)phenol (BI)[0459] To a stirred solution of 2-hydroxy-4-(4-methyl- l,3-thiazol-5-yl)benzonitrile (BH,15.6 g, 72.14 mmol) in tetrahydrofuran (400 mL) under an atmosphere of nitrogen was added LiAlH4(11 g, 289.86 mmol) in several portions at 10 ¡ãC. The resulting mixture was then heated to reflux for 3 h, LC-MS indicated formation of the desired product. The reaction was then cooled to 0 ¡ãC, quenched by the water (10 mL, added slowly and drop wise), 15percent NaOH (aq.) (30 mL) and water (10 mL). The solids precipitated were removed by filtration, the solution phase was concentrated under reduced pressure followed by high vacuum pump to give BI(yield: 65percent). LC-MS (ES+): m/z 220.85 [MH+], tR= 1.02 min (2.6 minute run).

The synthetic route of 693-95-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ARVINAS, INC.; JIN, Meizhong; CREW, Andrew, P.; DONG, Hanqing; WANG, Jing; SIU, Kam; FERRARO, Caterina; CHEN, Xin; QIAN, Yimin; (351 pag.)WO2016/118666; (2016); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

29182-42-1, Ethyl 2-(benzo[d]thiazol-2-yl)acetate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Tetrahydrofuran (25 mL) was added to a mixture of ethyl 2-(benzothiazol-2-yl)acetate, magnesium chloride (2.21 g, 10 mmol) and 2,6-dichloronicotinyl chloride (11 mmol). The resulting suspension was cooled in an ice bath and triethylamine (2.02 g, 20 mmol) was added dropwise at such a rate that the internal temperature did not go over 10 C. as measured with an internal thermocouple probe. Once the addition was complete, the ice bath was removed and the mixture was stirred at room temperature for 5 hours. The desired chloroester was isolated by diluting the reaction mixture with water, extraction with dichlorome thane (2×150 ml) and drying the resulting organic phase with sodium sulfate. Purification by trituration with diethyl ether yielded 2.71 g (76% based on ethyI2-(benzothiazol-2-yl)acetate) as fluffy beige crystals. IHNMR (CDC13, 400 MHz) 9.55 (IH, d, 8.4 Hz), 8.86 (IH, d, 8.4 Hz), 7.77 (IH, dd, 7.6, 1.2 Hz), 7.61 (IH, m), 7.56 (IH, d, 8.4 Hz), 7.49 (IH, m), 4.53 (2H, q, 7.2 Hz), 1.50 (3H, t, 7.2 Hz) 13CNMR (CDC13, 100 MHz) 171.1, 167.4, 163.1, 152.9, 148.4, 140.5, 137.7, 128.5, 127.8, 126.6, 123.1, 122.1, 121.7, 120.5, 106.3, 62.0, 14.7 LCMS: 359.3 (M+H)., 29182-42-1

The synthetic route of 29182-42-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; CYLENE PHARMACEUTICALS, INC.; WO2008/131134; (2008); 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.1003-32-3,Thiazole-5-carboxyaldehyde,as a common compound, the synthetic route is as follows.

General procedure: To a mixture of imidazole (0.1 mol), (furan-2-ylmethylidene)hydrazine (0.1 mol), and 4-subsituted benzaldehyde (0.1 mol) in 30 cm3 of EtOH was added Cu(Phen)Cl2(10 mol %) at room temperature. The reaction mixture was refluxed for 5 h. The reaction was checked by TLC, and then the solvent was removed under reduced pressure. The final product was purified by flash column chromatography on silica gel using n-hexane/EtOAc., 1003-32-3

The synthetic route of 1003-32-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Alaklab, Abdullah; Surendra Kumar, Radhakrishnan; Ahamed, Anis; Arif, Ibrahim A.; Manilal, Aseer; Idhayadhulla, Akbar; Monatshefte fur Chemie; vol. 148; 2; (2017); p. 275 – 290;,
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.72605-86-8,Methyl 2-chlorothiazole-5-carboxylate,as a common compound, the synthetic route is as follows.

2-o-tolyl-chroman-6-ol (2.5 g, 10.4 mmol)2-chloro-thiazole-5-carboxylate(1.9 g, 10.6 mmol, 1.02 equiv.) And potassium carbonate (1.9 g, 1.3 equiv.) In dimethylformamide (30 ml) at 50 C for 10 h.The suspension was cooled to room temperature and diluted with water. The aqueous layer was extracted with ethyl acetate and the combined organic layers were washed with water, dried over sodium sulfate, filtered, and the solvent was removed under reduced pressure. The crude product was purified by column chromatography (silica gel; ethyl acetate / heptane gradient). The product was obtained as a pale yellow solid (3.87 g, 98%)., 72605-86-8

72605-86-8 Methyl 2-chlorothiazole-5-carboxylate 12897294, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; Sanofi; W ¡¤qiehedisiji; J ¡¤weisidun; N ¡¤lakeerman; M ¡¤bodexiwa; P ¡¤aente; K ¡¤wosi; H ¡¤gegelaiyin; O ¡¤licele; V ¡¤kelafute; P ¡¤beierfuge; G ¡¤makete; (91 pag.)CN102993195; (2017); B;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

4175-77-3, 2,4-Dibromothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,4175-77-3

Scheme Dl; [00314] sec-BuLi (4.3 mL, 6.0 mmol, 1.4M solution in cyclohexane) was added dropwise to a solution of 9-bromoanthracene (1.29 g, 5.0 mmol) in Et2O (20 mL) at O¡ãC under N2. The reaction was held at O¡ãC for 15 minutes then warmed to rt and stirred an additional 45 minutes. Triisopropylborate (1.5 mL, 6.5 mmol) was added and the reaction was stirred at rt for 18h. Concentrated HCl (1.0 mL) and MeOH (1.0 mL) was added and the reaction was stirred for 30 minutes. The layers were separated and the aqueous phase was extracted three times with CH2Cl2. The combined organic layers EPO were washed with H2O, sat. NaHCO3 (aq.), brine, and then dried over Na2SO4. Filtration and concentration gave 1.05 g of 9-anthraceneboronic acid.[00315] A reaction flask was charged, under N2, with 9-anthraceneboronic acid(220 mg, 1.0 mmol), Pd(PPh3)4 (29 mg, 5.0 molpercent), 2,4-dibromothiazole (122 mg, 0.5 mmol), Na2CO3 (0.5 mL, 2.0 M solution in H2O), and toluene (4.0 mL). The reaction was heated at 9O¡ãC for 18h. After cooling to rt, water was added and the layers were separated. The aqueous phase was extracted three times with CH2Cl2. The combined organic layers were washed with H2O, brine, and then dried over Na2SO4. The crude product mixture was purified by silica gel chromatography eiuting with 1percent Et2O in hexanes. Isolated 93 mg, 50percent yield, of 2-anthracenyl-4-bromothiazole.

The synthetic route of 4175-77-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; SYMYX TECHNOLOGIES, INC.; WO2006/66126; (2006); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

78441-62-0,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.78441-62-0,2-(((2-((Dimethylamino)methyl)thiazol-4-yl)methyl)thio)ethanamine,as a common compound, the synthetic route is as follows.

EXAMPLE 3 According to the general procedure of Example 2, a solution of 1.65 (6.8 mmol) of 95percent pure 4-[[(2-aminoethyl)thio]methyl]-N,N-dimethyl-2-thiazolemethanamine and 1.8 g (7.0 mmol) of 1,1-diphenoxy-2-nitroethene dissolved in 25 ml of methylene chloride was stirred at room temperature for about two hours to provide N-[2-[[[2-[(dimethylamino)methyl]-4-thiazolyl]methyl]thio]ethyl]-2-nitro-1-phenoxy-1-etheneamine in situ. This compound was reacted with gaseous monomethylamine to provide 0.8 g of nizatidine. Yield 35.5percent.

As the paragraph descriping shows that 78441-62-0 is playing an increasingly important role.

Reference£º
Patent; Eli Lilly and Company; US4777260; (1988); A;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

62266-82-4,62266-82-4, 6-Bromobenzo[d]thiazol-2(3H)-one is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

EXAMPLE 13 6-(3-Chloro-phenyl)-3H-benzothiazol-2-one Prepared from 6-bromo-2-benzothiazolinone, 3-chlorophenyl boronic acid according to the procedure of example 12. A white solid: mp 195-196 C.; 1H-NMR (DMSO-d6) delta 11.95 (s, 1H), 7.96 (d, 1H, J=1.17 Hz), 7.7 (t, 1H, J=1.76 Hz) 7.62-7.59 (m, 2H), 7.46 (t, 1H, J=7.65 Hz), 7.4-7.38 (m, 1H), 7.18 (d, 1H, J=8.24 Hz); MS (EI) m/z (M+, 30%); Anal. Calc. For C13H8ClNOS.H2O: C, 57.67, H, 3.35, N, 5.17. Found: C, 57.98, H, 3.11, N, 4.98.

62266-82-4 6-Bromobenzo[d]thiazol-2(3H)-one 188444, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; American Home Products Corporation; Ligand Pharmaceutical, Inc.; US6423699; (2002); B1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica