Heterocyclic Building Blocks-Thiazole

3364-80-5, Thiazole-4-carboxaldehyde is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

3.3.C 3.3[0210] (S)-3-Phenyl-N-(3-(pyridin-4-yl)isoxazol-5-yl)-2-(thiazol-4- ylmethylamino)propanamide (3.3). To a 20 ml vial were added (S)-2-amino-3-phenyl-N- (3-(pyridin-4-yl)isoxazol-5-yl)propanamide 3.3.C (40 mg, 0.13 mmole), thiazole-4- carbaldehyde (18 mg, O.lbetammole), sodium triacetoxyborohydride (55 mg, 0.26mmole) and 10 ml of DCE. The reaction was stirred at 700C for 12 hours. The crude material was partitioned between DCM and water and then purified by reverse phase preparative HLPC to give (S)-3-phenyl-N-(3-(pyridin-4-yl)isoxazol-5-yl)-2-(thiazol-4- ylmethylamino)propanamide TFA salt 3.3 as a white solid (14.2 mg, 27 percent yield). LCMS ESI (pos.) m/e: 406.1 (M+l): IH NMR (500 MHz, MeOH-J) delta ppm 9.09 (d, J=I.96 Hz, 1 H), 8.87 (br. s., 2 H), 8.27 (d, J=5.38 Hz, 2 H), 7.77 (d, J=I.96 Hz, 1 H), 7.27 – 7.35 (m, 3 H), 7.20 – 7.25 (m, 2 H) 7.07 (s, 1 H), 4.42 – 4.55 (m, 2 H), 4.35 (dd, J=8.80, 5.87 Hz, 1 H), 3.44 (dd, J=13.57, 5.99 Hz, 1 H), 3.26 (dd, J=13.69, 8.80 Hz, 1 H).

3364-80-5, As the paragraph descriping shows that 3364-80-5 is playing an increasingly important role.

Reference£º
Patent; AMGEN INC.; DU, Xiaohui; FU, Zice; HOUZE, Jonathan, B.; JIAO, Xianyun; KIM, Yong-jae; LI, Leping; LIU, Jinqian; LIZARZABURU, Mike; MEDINA, Julio; SHEN, Wang; TURCOTTE, Simon; YU, Ming; WO2010/93849; (2010); A2;,
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.170235-26-4,Methyl 2-bromothiazole-4-carboxylate,as a common compound, the synthetic route is as follows.

Example 76; Preparation of Compound 76A and 76B; To a suspension of NaH (60% dispersion in oil, 10 mmol, 0.48 g.) in anhydrous dioxane (5 mL) was added a solution of indazole (10 mmol, 1.18 g) in dioxane (5 ml.) and the resulting reaction was allowed to stir for 30 minutes. A solution of 2- bromo-thiazole-4-carboxylic acid methyl ester (10.0 mmol, 2.22 g) in dioxane (5 mL) was then added dropwise and the reaction mixture was heated to 100C for 4 hrs. The reaction mixture was cooled to room temperature, quenched with water, and the solution was adjusted to pH 2 using 1 N HCI. The resulting basic solution was extracted with ethyl acetate and the organic phase was washed with water and brine, dried over anhydrous sodium sulfate, then filtered and concentrated. LCMS of the resulting residue showed two peaks for the acid indicating the formation of two regioisomers (Compounds 76A and 76B). HPLC-MS RT= 1.35 and 1.45 min, mass calculated for formula CnH7N3O2S 245.03, observed LCMS m/z 246.1 (M+H)., 170235-26-4

170235-26-4 Methyl 2-bromothiazole-4-carboxylate 2763213, athiazole compound, is more and more widely used in various fields.

Reference£º
Patent; SCHERING CORPORATION; WO2008/54749; (2008); A1;,
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Thiazole | chemical compound | Britannica

911052-85-2, (5-Bromothiazol-2-yl)methanol is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

911052-85-2, (4-Bromo-thiazol-2-yl)-methanol (L. LG, 5.7 mmol) in DMF (15 ml) is treated at room temperature under nitrogen atmosphere with TRIFLUOROMETHANESULFONYL chloride (0.61 ml, 1 equivalent), and Et3N (0.8 ml, 1 equivalent). The reaction mixture is stirred for 3 hours at room temperature before the addition of sodium azide (1. 11 g, 3 equivalents), followed by overnight stirring at the same temperature. The reaction mixture is diluted with water and extracted with DCM and diethyl ether. The combined organic extracts are dried (MGSO4) and concentrated under reduced pressure to afford the crude product, which is used without purification in the next step.

The synthetic route of 911052-85-2 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ARRAY BIOPHARMA, INC.; WO2004/46101; (2004); A2;,
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.3364-78-1,2-(Chloromethyl)thiazole,as a common compound, the synthetic route is as follows.

To a solution of dimethylphosphine borane 1-25 (200 mg, 2.6 mmol) in THF (30 mL) at 0C was added NaH (60% dispersion in mineral oil, 1 12 mg, 2.8 mmol) in one portion whereupon effervescence was observed. The opaque reaction was stirred at rt for 10 min then cooled back to 0C whereupon 2-(chloromethyl)thiazole 1-45 (341 mg, 2.6 mmol) and Nal (383 mg, 2.6 mmol) were added. The mixture was allowed to warm to rt O/N, then water (10 mL) and DCM (10 mL) were added and the phases separated. The aqueous phase was extracted with DCM (2 x 15 mL) and the combined organic extracts washed with brine (20 mL) before passing through a phase separator cartridge (Biotage). Concentration in vacuo gave the crude product which was purified by column chromatography (Biotage Isolera 4, KP-Sil 25 g) eluting with DCM to 3% MeOH in DCM to provide the title compound as a yellow oil (73 mg, 0.4 mmol, 16%)., 3364-78-1

As the paragraph descriping shows that 3364-78-1 is playing an increasingly important role.

Reference£º
Patent; AUSPHERIX LIMITED; HOLMES, Ian; NAYLOR, Alan; ALBER, Dagmar; POWELL, Jonathan Raymond; MAJOR, Meriel Ruth; NEGOITA-GIRAS, Gabriel; ALLEN, Daniel Rees; GUETZOYAN, Lucie Juliette; KING, Nigel Paul; (199 pag.)WO2017/93543; (2017); A2;,
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.

REFERENCE EXAMPLE 76 To a solution of 5-chloro-1,3-benzenediamine (1.5 g) in tetrahydrofuran (30 ml) was added slowly a 1.5M solution of n-butyl lithium in n-hexane (5.61 ml) at 0 C. The resultant mixture was stirred for 30 minutes at 0 C. To the mixture was added a solution of 2,6-dichlorobenzothiazole (429 mg) in tetrahydrofuran (5 ml). After stirring for 15 minutes at 0 C. and for an hour at ambient temperature, the reaction mixture was poured into a mixture of water and ethyl acetate. The separated organic layer was washed well with 0.1N-hydrochloric acid (total 400 ml). After evaporation under reduced pressure, the residue was crystallized from methanol to give 5-chloro-N-(6-chlorobenzothiazol-2-yl)-benzene-1,3-diamine (171 mg). APCI-Mass: 312.20, 310.27 (m/z, (M+H)+) NMR(DMSO-d6, delta): 5.50(2H, s), 6.28(1H, t, J=1.9 Hz), 6.81(1H, t, J=1.9 Hz), 7.07(1H, t, J=1.9 Hz), 7.33(1H, dd, J=2.2, 8.6 Hz), 7.56(1H, d, J=8.6 Hz), 7.94(1H, d, J=2.2 Hz), 10.41(1H, s).

3622-23-9, The synthetic route of 3622-23-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Yamada, Akira; Spears, Glen; Hayashida, Hisashi; Tomishima, Masaki; Ito, Kiyotaka; Imanishi, Masashi; US2003/176454; (2003); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

1003-32-3, Thiazole-5-carboxyaldehyde is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 5A 2-Amino-6-sulphanyl-4-(1,3-thiazol-5-yl)pyridine-3,5-dicarbonitrile 1.14 g (9.539 mmol) of 5-thiazolecarboxaldehyde and 1.91 g (19.077 mmol) of cyanothioacetamide are initially charged in 20 ml of ethanol, 2.097 ml (19.077 mmol) of 4-methylmorpholine are added and the mixture is heated under reflux for 4 hours. The mixture is then stirred at room temperature for 20 hours. The reaction mixture is concentrated and the residue is purified on silica gel (mobile phase: methylene chloride/methanol 100:0?10:1). The product-containing fractions are concentrated and the residue is triturated with acetonitrile. The solid is filtered off and dried under high vacuum. This gives 920 mg (37% of theory) of the target compound. 1H-NMR (400 MHz, DMSO-d6): delta=9.31 (s, 1H), 8.16 (s, 1H), 7.50-6.99 (s br, 2H). LC-MS (Method 2): Rt=1.29 min; MS (ESIpos): m/z=260 [M+H]+., 1003-32-3

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

Reference£º
Patent; BAYER SCHERING AKTIENGESELLSCHAFT; US2011/136871; (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.78364-55-3,6-Fluoro-2-hydrazinylbenzo[d]thiazole,as a common compound, the synthetic route is as follows.,78364-55-3

General procedure: Equimolar amounts of appropriate 2-hydrazinobenzothiazole1a-b, alpha-cyanoacetophenone 2a-c, and PTSA were mixed thoroughly in pestle mortar and heated on water bath for 4-5 min and then equimolar amount of appropriate trifluoromethyl beta-diketones 3a-d was added to it and mixed thoroughly. The reaction mixture was again heated 80-90 ¡ã C for 15 min on water bath. The solid was obtained by addition of aq. ethanol, filtered and crystallized from the mixture of ethanol and chloroform to give pure 4.

78364-55-3 6-Fluoro-2-hydrazinylbenzo[d]thiazole 2049844, athiazole compound, is more and more widely used in various fields.

Reference£º
Article; Aggarwal, Ranjana; Kumar, Virender; Bansal, Anshul; Sanz, Dionisia; Claramunt, Rosa M.; Journal of Fluorine Chemistry; vol. 140; (2012); p. 31 – 37;,
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.7210-76-6,Ethyl 2-amino-4-methylthiazole-5-carboxylate,as a common compound, the synthetic route is as follows.,7210-76-6

General procedure: A solution of 2-amino-5-substituted-4-methylthiazole (1) (0.01 mol) (1a:1.2 g, 1b:1.3 g, 1c:1.6 g, 1d:1.9 g, 1e:1.9 g)[29, 30] and triethylamine (0.01 mol) (1.5 mL) was prepared by stirring in THF (50 mL) at room temperature. After cooling the mixture in an ice bath, chloroacetyl chloride (0.01mol) (0.8 mL) was added drop wise with constant stirring. Before evaporation of the solvent under reduced pressure,the reaction mixture was further stirred for 1 hour at room temperature. The precipitate formed was crystallised from ethanol [31, 12].

As the paragraph descriping shows that 7210-76-6 is playing an increasingly important role.

Reference£º
Article; Gundogdu-Karaburun, Nalan; Letters in drug design and discovery; vol. 11; 6; (2014); p. 814 – 823;,
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Thiazole | chemical compound | Britannica

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.464192-28-7,2-Bromo-5-formylthiazole,as a common compound, the synthetic route is as follows.,464192-28-7

Intermediate 103 (16.34 g, 0.086 mol) was dissolved in methanol (300 mL) and cooled to 10C. Sodium borohydride (1.63 g, 0.043 mol) was added portionwise over 15 min. The cooling bath was removed and the reaction allowed to warm to room temperature and stirred for 3 hours. The solvent was evaporated. Water (100 mL) was added followed by 1N HCI (200 mL). Ethyl acetate (450 mL) was added and the phases were separated. The organic layer was washed with brine (450 mL), dried (MgS04) and concentrated to give a brown liquid. The crude product was purified by chromatography on silica, using cyclohexane-ethyl acetate (80: 20 v/v) as eluent to give the title compound. ‘H NMR (CDCI3) : 8 7.4 (1H, s), 4.82 (2H, d), 2.96 (1H, t)

The synthetic route of 464192-28-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2004/37818; (2004); A1;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica

494769-44-7, tert-Butyl (4-(hydroxymethyl)thiazol-2-yl)carbamate is a thiazole compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: The intermediate (3) (0.5 g, 0.00217 mol), EDCl (0.622 g, 0.00325 mol), DMAP (0.345 g, 0.0028 mol) were stirred in dichloromethane (6 mL) at 0 C, and the substituted acid (0.00217 mol) were dissolved in (4 mL) of dichloromethane and charged to the reaction mixture and stirred at room temperature for 8 h. The reaction completion was monitored by TLC. Reaction was completed. The reaction mixture was diluted with (10 mL) of dichloromethane, and was washed with 10% NaHCO3 (10 mL). Separated the organic layer and was washed with saturated brine solution (10 mL). The organic layer was dried over sodium sulfate and concentrated the organic layer under reduced pressure to afford compounds 4a-t. The spectral data of compounds 4(a-t) are given below.

494769-44-7, The synthetic route of 494769-44-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Karuvalam, Ranjith P.; Haridas, Karickal R.; Nayak, Susanta K.; Guru Row, Tayur N.; Rajeesh; Rishikesan; Kumari, N. Suchetha; European Journal of Medicinal Chemistry; vol. 49; (2012); p. 172 – 182;,
Thiazole | C3H3NS – PubChem
Thiazole | chemical compound | Britannica