Tag: M.W:200-300

170961-15-6, tert-Butyl thiazol-2-ylcarbamate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: n-BuLi (2.5M in THF, 1.4equiv) was added drop wise to a mixture of compound 1a or 1b (1equiv) and aldehyde (1.2equiv) in THF (?20mL) at -78C for 2h. The reaction was quenched by adding a saturated aqueous solution of NH4Cl, extracted with EtOAc, washed with water and then brine. The organic phase was dried over anhydrous Na2SO4, evaporated, and the residue was purified by silica gel column chromatography

170961-15-6, As the paragraph descriping shows that 170961-15-6 is playing an increasingly important role.

Reference£º
Article; Khalil, Ahmed; Edwards, Jessica A.; Rappleye, Chad A.; Tjarks, Werner; Bioorganic and Medicinal Chemistry; vol. 23; 3; (2015); p. 532 – 547;,
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.405939-39-1,tert-Butyl (5-bromothiazol-2-yl)carbamate,as a common compound, the synthetic route is as follows.

Example 18, Step F[00180] To (i-Pr)2NH (59.7 g, 0.591 mol) in THF (250 mL) at 0C was added n-BuLi (236 mL, 2.5 M, 0.591 mol) was added slowly. The reaction mixture was stirred for 20 mins after which a THF solution of compound 15_2 (50 g, 0.179 mol) was slowly added to the reaction mixture with continued stirring. The mixture was stirred for 30 mins at 0C and then DMF (43.1 g, 0.591 mol) added. The mixture was stirred for 12 hrs at r.t. and diluted with EtOAc and water. The organic layer was separated, washed with brine, dried over Na2S04 and concentrated in vacuo. The residue was purified by silica chromatography to give compound 18_1 (35 g, 64%) as a white solid. [00181] This compound was characterized by proton NMR (1HNMR) in accordance with the procedures described herein. Proton NMR yielded the following results: 1H NMR (DMSO-d6, 400MHz): delta 9.73(s, 1 H); 1.47(s, 9H)., 405939-39-1

The synthetic route of 405939-39-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; MERCK SHARP & DOHME CORP.; ADDEX PHARMA S.A.; LIVERTON, Nigel, J.; BOLEA, Christelle; CELANIRE, Sylvain; YUNFU, Luo; WO2012/8999; (2012); A2;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

161798-01-2, Ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example – 1: Preparation of Ethyl-2-(3-cyano-4-isobutoxy phenyl)-4-methyI thiozole -5-carboxylateA mixture of 10. Og of Ethyl -2-(3-formyl-4-hydroxy phenyl)-4-methyl thiozole -5- carboxylate and 2.85 g of hydroxylamine hydrochloride were stirred for 30 minutes in 40 g of Dimethyl sulfoxide. To this reaction mixture 3.3 grams of acetyl chloride was added and stirred at 70 -80¡ãC for 2-3 hours. Reaction mass was cooled to room temperature and to this 19 g of potassium carbonate and 19 g of isobutyl bromide was added successively. The reaction mass was stirred for 5 hours at 70-80¡ãC. Reaction mass was diluted with 200 ml of purified water. The reaction mass was filtered and washed with purified water to give 10.0 g of Ethyl-2-(3-cyano-4-isobutoxy phenyl)-4-methyl thiozole -5-carboxyltae (yield 84.0percent), 161798-01-2

As the paragraph descriping shows that 161798-01-2 is playing an increasingly important role.

Reference£º
Patent; MATRIX LABORATORIES LTD; VELLENKI, Siva Rama Prasad; ARABINDA, Sahu; RAAVI, Satyanarayana; NUCHU, Ravi; DANDALA, Ramesh; WO2012/66561; (2012); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

2103-99-3, 4-(4-Chlorophenyl)thiazol-2-amine is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: A solution of 2-amino-4-phenylthiazole 6a (0.530 g, 3 mmol) and Et3N (560 muL, 4 mmol) in dichloromethane (15 mL) was cooled to 0-5 C in an ice-bath and stirred for 30 min. 2-Chloroacetyl chloride (578 muL, 6.6 mmol) in dry dichloromethane (1.5 mL) was then added slowly, and the reaction mixture was allowed to warm to room temperature and stirred until the amine was completely consumed (ca. 1 h, as monitored by TLC). The reaction mixture was diluted with dichloromethane and washed successively with water and saturated brine. The organic layer was dried over anhydrous Na2SO4, the solvent was removed under reduced pressure and the residue was recrystallised from ethanol to give compound 7a (0.413 g, 54percent) as light-grey crystals, mp 170-171 oC (Lit.18,20,26 171-173 oC). The remaining analogues were obtained similarly [7b (100percent) as a brown solid, mp 194-195 oC (Lit.27 mp not cited); 7c (64percent) as a brown solid, mp 241-243 oC (Lit.27 mp not cited); 7d (64percent) as a brown solid, mp 135-137 oC (Lit.28 135 oC); 7e (0.262 g, 88percent) as a yellow solid, mp 174-176 C (Lit.29 175 oC); 7f (70percent) as a light-brown solid, mp 213-216 oC (Lit.30 216 oC)., 2103-99-3

The synthetic route of 2103-99-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Olawode, Emmanuel O.; Tandlich, Roman; Prinsloo, Earl; Isaacs, Michelle; Hoppe, Heinrich; Seldon, Ronnett; Warner, Digby F.; Steenkamp, Vanessa; Kaye, Perry T.; Arkivoc; vol. 2018; 7; (2018); p. 110 – 118;,
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.78485-37-7,Ethyl 2-chloro-6-benzothiazolecarboxylate,as a common compound, the synthetic route is as follows.

78485-37-7, Ethyl 2-chloro-benzo[d]thiazole-6-carboxylate (362 mg, 1.5 mol)After acidification with hydrochloric acid and (2R,6S)-2,6-dimethylpiperidin-4-one (127 mg, 1.0 mmol)Dissolved in isopropanol (30 mL), reacted at 100 C for 12 hours, concentrated,Purified by silica gel column chromatography (petroleum ether: ethyl acetate = 3:1).The title compound (80 mg, yield: 24.1%) was obtained.

As the paragraph descriping shows that 78485-37-7 is playing an increasingly important role.

Reference£º
Patent; Hainan Xuanzhu Pharmaceutical Technology Co., Ltd.; Shi Chengkong; Chen Bo; (23 pag.)CN109320509; (2019); A;,
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.117724-63-7,2-Methyl-4-(trifluoromethyl)thiazole-5-carboxylic acid,as a common compound, the synthetic route is as follows.

General procedure: Under nitrogen atmosphere, carboxylic acid II (3mmol), EDCI (3.3 mmol), HOBT (3.3 mmol)and Et3N (1.8 mmol) were placed in a three-necked flask with 40 mL CH2Cl2, and stirred for 2 hat 0 C; then, compound I (2.4 mmol) was added to the flask and allowed to react for 3 h at 0 C.The reaction was monitored by thin-layer chromatography (TLC) (all reactions could be completed in3 h) and, on completion of the reaction, the mixture was washed with saturated NaHCO3 solutionand water, respectively. Then, it was dried over anhydrous Na2SO4, filtered and evaporated onrotavapor in vacuum. Subsequently, crude products III-1-III-18 were purified by silica gel columnchromatography [V (CH2Cl2): V (EA) = 3:1] and crude products III-19-III-36 were purified by silicagel column chromatography [V (PE): V (EA) = 3:1]. Finally, products were recrystallized with thedichloromethane/petroleum ether to obtain pure target compounds., 117724-63-7

The synthetic route of 117724-63-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Zhang, Shen; Meng, Siqi; Xie, Yong; Yang, Yonggui; Zhang, Yumeng; He, Lu; Wang, Kai; Qi, Zhiqiu; Ji, Mingshan; Qin, Peiwen; Li, Xinghai; Molecules; vol. 24; 14; (2019);,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

768-11-6, 5-Bromobenzothiazole is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,768-11-6

j00301j A mixture of 5-bromobenzo[djthiazole (0.34 g, 1.6 mmol), 2,4,6-trimethyl-1,3,5,2,4,6- tnoxatnbonnane (0.60 g, 4.8 mmol), dicyclohexyl-[3 -(2,4,6-triisopropylphenyl)phenyljphosphane [2- (2-aminophenyl)phenylj-chloro-palladium; (0.06 g, 0.08 mmol) and potassium phosphate (0.67 g, 3.2 mmol) in tetrahydrofuran (12 mL) and water (3 mL) at 15 C was degassed and purged with nitrogen 3 times. The mixture was stirred at 60 C for 12 hours under nitrogen, then diluted with ethyl acetate (250 mL) and washed with brine (6 x 20 mL), dried over anhydrous sodium sulfate, filtered and concentrated in vacuo to give compound B-14 (0.27 g, 78% yield) as brown gum, which used directly without further purification. LCMS (Y): tR=0.633 mi, (ES) mlz (M+H) = 150.0.

As the paragraph descriping shows that 768-11-6 is playing an increasingly important role.

Reference£º
Patent; FORUM PHARMACEUTICALS, INC.; ACHARYA, Raksha; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; COOK, Andrew, Simon; HARRISON, Bryce, Alden; McRINER, Andrew, J.; (267 pag.)WO2017/69980; (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.3622-23-9,2,6-Dichloro-1,3-benzothiazole,as a common compound, the synthetic route is as follows.

EXAMPLE 4 4-{4′-[(6-Chloro-1,3-benzothiazol-2-yl)amino]-1,1′-biphenyl-4-yl}-4-oxo-2-(2-phenylethyl)butanoic acid This compound was prepared from methyl 4-(4′-amino-1,1′-biphenyl-4-yl)-4-oxo-2-(2-phenylethyl)butanoate (78 mg, 0.20 mmol), 2,6-dichloro-1,3-benzothiazole (61.6 mg, 0.30 mmol) in a similar manner to the method described for 4-[4′-(1,3-benzothiazol-2-ylamino)-1,1′-biphenyl-4-yl]-2,2-dimethyl-4-oxobutanoic acid, providing 26.7 mg (25%) of the desired product. 1H NMR (400 MHz, DMSO-d6) delta 10.80 (br s, 1H), 7.75-8.05 (m, 9H), 7.60 (d, 1H), 7.10-7.40 (m, 6H), 3.50 (q, 1H), 3.10 (m, 1H), 2.85 (m, 1H), 2.65 (m, 2H), 1.80 (m, 2H). LC-MS m/z 541.3 (MH+), ret. time 4.07 min.

3622-23-9, As the paragraph descriping shows that 3622-23-9 is playing an increasingly important role.

Reference£º
Patent; Bayer Pharmaceuticals Corporation; US2004/224997; (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.131748-91-9,2-Bromo-5-(bromomethyl)thiazole,as a common compound, the synthetic route is as follows.

REFERENCE EXAMPLE 9 To a mixture of 1.85g of potassium phthalimide and 20ml of dry DMF were added 2.57g of 2-bromo-5-(bromomethyl)thiazole by portions at room temperature, taking for 20 minutes, followed by stirring for an hour. An insoluble substance was removed by filtration and the filtrate was concentrated. To the residue were added 30ml of ethanol to which 0.60g of hydrazine hydrate were dropwise added within 2 minutes in an oil bath of 20 C. The reaction mixture was refluxed for an hour and concentrated. After adding 20ml of water and 10ml of conc. hydrobromic acid, the mixture was further refluxed for 30 minutes. After cooling, the mixture was neutralized with 20% aqueous sodium hydroxide solution and concentrated. To the residue were 50ml of acetonitrile, and an insoluble substance was removed by filtration. The filtrate was concentrated and the residue was purified by a column chromatography [developing solvent: dichloromethane-methanol (5:1)] to afford 0.76g of 5-(aminomethyl)-2-bromothiazole as a brown oil. 1 H-NMR(CDCl3) 1.59(2H,s), 4.06(2H,d,J=1.2Hz), 7.40(1H,t,J=1.2Hz)., 131748-91-9

As the paragraph descriping shows that 131748-91-9 is playing an increasingly important role.

Reference£º
Patent; Takeda Chemical Industries, Ltd.; US5034404; (1991); A;,
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.886361-30-4,Methyl 2-amino-5-(4-fluorophenyl)thiazole-4-carboxylate,as a common compound, the synthetic route is as follows.

To a solution of P-29 (1g, 3.96mmol) in pyridine (10 mL) was added methanesulfonyl chloride (0.62mL, 7.92mmol) and the resulting mixture was stuffed at 60C over night. Reaction mixture was then brought to room temperature and pyridine was evaporated under reduced pressure. The residue was dissolved in ethyl acetate and washed with saturated aq. sodium bicarbonate, water and brine. Organic layer was dried with anhydrous sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography (hexanes/ethyl acetate) to afford 1g (77%) of product 12. To a stuffed suspension of intermediate 2 (1g, 3mmol) was added 2M LiOH in dioxane (7.5mL, 3mmol) and the solution was stirred for 2h at 40C. The reaction mixture was then gradually acidified with 1N HCl. Diluted with water and extracted with ethyl acetate. Organic layer was washed with brine and dried with anhydrous sodium sulfate. Filtration and evaporation of organic layer afforded 0.9g (94%) of the product S-29., 886361-30-4

886361-30-4 Methyl 2-amino-5-(4-fluorophenyl)thiazole-4-carboxylate 2782963, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; FLYNN, Gary, A.; WO2013/22766; (2013); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica