Tag: M.W:100-200

55690-60-3, 5-Methoxybenzo[d]thiazole-2-thiol is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

55690-60-3, A mixture of 5-methoxy-1,3-benzothiazole-2-thiol (500 mg), thionyl chloride (2 mL) and DMF (1 drop) was stirred at 50 C. for 3 days. Saturated aqueous sodium hydrogen carbonate solution was added to the reaction mixture, and the obtained mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (211 mg).1H NMR (300 MHz, DMSO-d6) delta 3.84 (3H, s), 7.15 (1H, dd, J=9.0, 2.5 Hz), 7.53 (1H, d, J=2.5 Hz), 7.97 (1H, d, J=9.0 Hz).

The synthetic route of 55690-60-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Yamashita, Tohru; Kamata, Makoto; Hirose, Hideki; Murakami, Masataka; Fujimoto, Takuya; Ikeda, Zenichi; Yasuma, Tsuneo; Fujimori, Ikuo; Mizojiri, Ryo; Yukawa, Tomoya; US2011/263562; (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.169260-97-3,5-(Trifluoromethyl)thiazol-2-amine,as a common compound, the synthetic route is as follows.

General procedure: The carboxylic acid in question (0.55 mmol), the amine in question (0.50 mmol),1 -hydroxy-7-azabenzotriazole (HOAt, 0.75 mmol) and 1 -ethyl-3-(3-di methylaminopropyl)carbodiimide (EDO, 0.55 mmol) were dissolved in 6 mL of DMF. The resulting slurry was stirred for 24h at ambient temperature. Thereafter 3 mL of methanol and 0.2 g of silica gel 018 were added sequentially and the mixture was stirred for 2 h, thenfiltered and solid residue dissolved in 0.5-1 mL of DMSO for HPLC purification (H20:MeOH), gradient). Yield: 20- 80%., 169260-97-3

169260-97-3 5-(Trifluoromethyl)thiazol-2-amine 15388849, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; EUROPEAN MOLECULAR BIOLOGY LABORATORY; WILL, David William; REID, George; CHARAPITSA, Iryna; LEWIS, Joe; (118 pag.)WO2018/229195; (2018); 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.

i) To a solution of palladium (II) trifluoroacetate (66.0 mg, 0.20 mmol) and tri-t- butylphosphonium tetrafluoroborate (58.0 mg, 0.20 mmol) in anhydrous toluene (10 mL) under an argon atmosphere was added 2-bromo-l,3-thiazole-5-carbonitrile (756 mg, 4.00 mmol) followed by potassium phosphate tribasic (934 mg, 4.40 mmol) then tert-butyl piperazine-1-carboxylate (3.00 g, 16.00 mmol). The reaction mixture was heated at 8O0C for 16 hours. The reaction mixture was diluted with EtOAc (100 mL), water (100 mL) and the layers separated. The aqueous layer was extracted with EtOAc (100 mL), the combined organics washed with water (100 mL) and dried (MgSO4) to give a crude gum. The crude material was purified by flash column chromatography (isohexane to 50 % ethyl acetate then to ethyl acetate) to furnish the desired compound as a white solid (1.00 g, 85 % yield). MS (+ve ESI) (des Boc material) : 195 (M+H)+1R NMR (400.13 MHz, CDCl3) delta 1.48 (s, 9H), 3.57 (m, 8H), 7.69 (s, IH), 440100-94-7

As the paragraph descriping shows that 440100-94-7 is playing an increasingly important role.

Reference£º
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2009/1127; (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.81449-93-6,Ethyl 2-chlorothiazole-5-carboxylate,as a common compound, the synthetic route is as follows.

Dissolve ethyl 2-CHLOROTHIAZOLE-5-CARBOXYLATE (0.927 g, 4. 84 mmol) in methanol. Cool the solution to 0 C, then bubble NH3 into the reaction mixture for 10 minutes. Then seal the reaction vessel and stir for 3 hours. Concentrate the reaction mixture to give the title product : LH NMR (CDC13) : 8. 21 (s, 1H), 8.19 (s, 1H), 7.77 (s, 1H) ; HPLC [YMC-Pro pack C-18 (150 x 4.6 mm, S-5 microm), 0.05% TFA/acetonitrile in 0.05% TFA/WATER at 1.0 ML/MIN, 10-20% over 5 min, 20-95% over 18], tR = 6.9 min, 100% purity, 81449-93-6

Big data shows that 81449-93-6 is playing an increasingly important role.

Reference£º
Patent; ELI LILLY AND COMPANY; WO2004/80996; (2004); 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.106092-09-5,(S)-(-)-2,6-Diamino-4,5,6,7-tetrahydrobenzothiazole,as a common compound, the synthetic route is as follows.

General procedure: To a solution of carboxylic acid (1 mmol) in CH2Cl2 (10 ml) were added Et3N (2 mmol) and TBTU (1.1 mmol) and the mixture was stirred at room temperature for 15 min. Then amine 1 or 3 (1 mmol)and Et3N (2 mmol) were added and the reaction mixture was stirred at room temperature for 2.5 h. The reaction mixture was diluted with CH2Cl2 (15 ml) and washed with saturated aqueous NaHCO3 solution (2×15 ml). Combined water phases were extracted with CH2Cl2 (1 20 ml). Combined organic phases weredried over Na2SO4, filtered and the solvent removed under reduced pressure.

106092-09-5, The synthetic route of 106092-09-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Hodnik, ?iga; Toma?i?, Tihomir; Ma?i?, Lucija Peterlin; Chan, Fiona; Kirby, Robert W.; Madge, David J.; Kikelj, Danijel; European Journal of Medicinal Chemistry; vol. 70; (2013); p. 154 – 164;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

19759-66-1, 2-Aminobenzothiazole-6-carbonitrile is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a solution of benzofurane-2-carbonyl chloride 1 in dry toluene, a solution of corresponding anilines and amino-pyridines 2a-j, 2-aminobenzothiazoles 4a, 4c and 5a and 2-aminobenzimidazoles 4b, 4d and 5b in dry toluene was added dropwise, followed by the addition of Et3N. The mixture was refluxed for several hours. After cooling, the resulting products were filtered off and recrystallized from methanol to obtain benzofurane-2-carboxamides 3a, 3b, 3d-j and 6a-f., 19759-66-1

As the paragraph descriping shows that 19759-66-1 is playing an increasingly important role.

Reference£º
Article; Hranjec, Marijana; Sovic, Irena; Ratkaj, Ivana; Pavlovic, Gordana; Ilic, Natasa; Valjalo, Linda; Pavelic, Kresimir; Kraljevic Pavelic, Sandra; Karminski-Zamola, Grace; European Journal of Medicinal Chemistry; vol. 59; (2013); p. 111 – 119;,
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.155559-81-2,5-Fluorobenzo[d]thiazole-2-thiol,as a common compound, the synthetic route is as follows.

Example 40Preparation of7V,7V-dicyclopropyl-6-ethyl-4-(5-fluorobenzo[d]thiazol-2-ylamino)-l- methyl-l,6-dihydroimidazo [4,5-d] pyrrolo [2,3-b] pyridine-7-carboxamide 40A Preparation of 5-fluoro-2- methylthio)benzo|”d”lthiazole[00284] To a solution of 5-fluoro-2-mercaptobenzothiazole (0.15 g, 0.810 mmol) in THF (8.10 niL) cooled to 0 C was added sodium hydride (0.036 g, 0.891 mmol). After stirring 10 min, iodomethane (0.076 mL, 1.215 mmol) was added and the reaction mixture was slowly warmed to room temperature over 2 h. The reaction was diluted with ethyl acetate and quenched with saturated aqueous sodium bicarbonate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. 5-fluoro-2-(methylthio)benzo[d]thiazole (0.178 g, 110 % yield) was isolated as a white solid. Material was used without any further purification.[00285] MS (ESI) m/z 200.0 (M+H)[00286] 1H NMR (400 MHz, CHLOROFORM-d) delta ppm 7.68 (dd, 1H, J= 8.81, 5.04 Hz), 7.56 (dd, 1H, J= 9.57, 2.52 Hz), 7.07 (td, 1H, J= 8.81, 2.52 Hz), 2.80 (s, 3H), 155559-81-2

The synthetic route of 155559-81-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; BRISTOL-MYERS SQUIBB COMPANY; PURANDARE, Ashok V.; GREBINSKI, James W.; HART, Amy; INGHRIM, Jennifer; SCHROEDER, Gretchen; WAN, Honghe; WO2011/28864; (2011); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

2933-29-1, 2-Amino-4,5,6,7-tetrahydrobenzothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 134 S-5-Fluoro-1H-indole-2-carboxylic acid [2-phenyl-1-(4,5,6,7-tetrahydro-benzothiazol-2-ylcarbamoyl)-ethyl]-amide From S-2-[(5-fluoro-1H-indole-2-carbonyl)-amino]-3-phenyl-propionic acid and 4,5,6,7-tetrahydro-benzothiazol-2-yl-amine. mp 162 – 165 C.

2933-29-1, 2933-29-1 2-Amino-4,5,6,7-tetrahydrobenzothiazole 18046, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; PFIZER INC.; EP1134213; (2001); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

71224-95-8, 2-Aminobenzo[d]thiazole-7-carboxylic acid is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

71224-95-8, Example 116, 2-amino-N-(5-(2,3-dihvdrobenzo[b][1,4]dioxine-6-carboxamido)-2-methylphenyl)benzo[d]thiazole-7-carboxamide[00153] HATU (0.201 g, 0.53 mmol) and DIPEA (0.230 mL, 1 .32 mmol) were added to a solution of 2-aminobenzo[d]thiazole-7-carboxylic acid (102 mg, 0.53 mmol) in DMA (3 mL) under an inert atmosphere and the reaction allowed to stir for 15 minutes. Compound 2 (0.125 g, 0.440 mmol) was added and the reaction stirred at ambient temperature for approximately 24 hours and then at 40 C overnight. No product was observed. Additional 2-aminobenzo[d]thiazole-7-carboxylic acid (102 mg, 0.53 mmol) was converted to the acid chloride by treatment with oxalyl chloride (approximately 1 .2 equivalents) and DMF (a few drops) in DCM and the acid chloride added to the reaction mixture. The reaction was diluted with water and the solids filtered. The solids were dissolved in DMF and purified by preparative HPLC. Fractions containing the desired compound were evaporated to dryness to afford the desired material as a white solid (0.043 g, 21 %).1H NMR (400 MHz, DMSO) delta 10.05 (s, 1 H), 10.04 (s, 1 H), 7.87 (d, J = 7.1 Hz, 1 H), 7.82 (d, J = 2.2 Hz, 1 H), 7.62 (dd, J = 2.2, 8.3 Hz, 1 H), 7.49 – 7.56 (m, 3H), 7.47 (s, 2H), 7.39 (t, J = 7.8 Hz, 1 H), 7.25 (d, J = 8.5 Hz, 1 H), 6.98 (d, J = 8.4 Hz, 1 H), 4.28 – 4.35 (m, 4H), 2.21 (s, 3H). m/z (ES+), (M+H)+ = 461 .

The synthetic route of 71224-95-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; CANCER RESEARCH TECHNOLOGY LIMITED; JONES, Keith; RYE, Carl; CHESSUM, Nicola; CHEESEMAN, Matthew; PASQUA, Adele Elisa; PIKE, Kurt Gordon; FAULDER, Paul Frank; WO2015/49535; (2015); 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.2406-90-8,2-Chlorobenzo[d]thiazol-6-amine,as a common compound, the synthetic route is as follows.

Add oxalyl chloride (10 mL, 114.6 mmol) and DMF (4 drops) to a stirring suspension of4′-fluoro-biphenyl-4-carboxylic acid (4.9 g, 22.7 mmol) in CH2Cl2 (150 mL). Stir the reaction mixture at room temperature for 3 h. Concentrate the mixture in vacuo, add n-hexane, re- concentrate, and re-dissolve in CH2Cl2. Add the resultant 4′-fluoro-biphenyl-4-carbonyl chloride solution to a mixture of 2-chloro-benzothiazol-6-ylamine (3.31 g, 17.9 mmol) and pyridine (3.0 mL) in CH2Cl2 (150 mL). Stir the reaction mixture overnight at room temperature. Dilute the reaction mixture with CH2Cl2. Wash the reaction mixture twice with LOM HCl and once with LOM NaOH. Dry the mixture over Na2SO4, concentrate in vacuo, and triturate with MeOH to yield the desired product (6.34 g, 93%). 1H NMR (400 MHz, DMSO-d6): deltaltheta.59 (s, IH), 8.69 (d, J = 1.6Hz, IH), 8.09 (d, J= 8.0Hz, 2H), 7.96 (d, J = 8.8Hz, IH), 7.87-7.79 (m, 5H), 7.38-7.31 (m, 2H)., 2406-90-8

The synthetic route of 2406-90-8 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ELI LILLY AND COMPANY; WO2006/66173; (2006); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica