Category: 345637-71-0

Related Products of 345637-71-0, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, This compound has unique chemical properties. The synthetic route is as follows.

To a solution of (5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid (53 mg,0.25 mmol) in 3 ml of acetonitrile was added diisopropylethylamine (0.13 g, 1.0mmol), followed by 2-(1H-7-azabenzotriazol-1-yl)–1,1,3,3-tetramethyl uroniumhexafluorophosphate methanaminium (HATU, 0.11 g, 0.3 mmol). After stirring15 min at room temperature, N-methyl-2-[3-(methylamino)propyl]-N-[(1R)-tetralin-1-yl]thiazole-4-carboxamide (9, 96 mg, 0.25 mmol) was added to thereaction mixture. After stirring 16 h at room temperature, the solvent wasevaporated and the resulting yellow oil was dissolved in ethyl acetate (20 mL),washed with 1 N HCl solution, saturated aqueous sodium bicarbonate solution,and brine. The organic layer was dried over sodium sulfate, filtered, andevaporated under reduced pressure. The crude mixture was purified by columnchromatography on silica gel, using ethyl acetate / cyclohexane 7 : 3 as eluent togive N-methyl-2-[3-[methyl-[2-[5-methyl-3-(trifluoromethyl)pyrazol-1-yl]acetyl]amino]propyl]-N-[(1R)-tetralin-1-yl]thiazole-4-carboxamide (3, 83mg, 0.2 mmol, 78%).

The chemical industry reduces the impact on the environment during synthesis 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid. I believe this compound will play a more active role in future production and life.

Related Products of 345637-71-0, The chemical industry reduces the impact on the environment during synthesis 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, I believe this compound will play a more active role in future production and life.

Step D: Preparation of 1-[4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-3,6-dihydro-1(2H)-pyridinyl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone To a solution of 4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-1,2,3,6-tetrahydropyridine hydrochloride (i.e. the product of Example 13, Step C) (0.250 g, 0.720 mmol) and 5-methyl-3-(trifluoromethyl)-1H-pyrazole-1-acetic acid (0.150 g, 0.720 mmol) in dichloromethane (10 mL) was added N-(3-dimethylaminopropyl)-N’-ethylcarbodiimide (0.138 g, 0.720 mmol), 1-hydroxybenzotriazole (0.024 g, 0.177 mmol), and triethylamine (0.145 g, 1.44 mmol) at room temperature. The reaction mixture was stirred at room temperature for 24 h. The reaction mixture was diluted with dichloromethane (30 mL) and washed with water (20 mL) and brine (20 mL). The organic layer was separated, washed with water, dried (Na2SO4), and concentrated under reduced pressure and purified by medium-pressure liquid chromatography using 3% methanol in chloroform as eluant to give 200 mg of the title product as a white solid. 1H NMR (CDCl3): delta 2.3 (s, 3H), 2.71-2.75 (m, 2H), 3.42-3.46 (m, 1H), 3.74-3.88 (m, 3H), 4.24-4.27 (m, 2H), 5.02 (s, 2H), 5.71-5.76 (m, 1H), 6.32 (s, 1H), 6.57 (s, 1H), 7.3-7.38 (m, 5H), 7.64 (s, 1H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, other downstream synthetic routes, hurry up and to see.

Related Products of 345637-71-0, The chemical industry reduces the impact on the environment during synthesis 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, I believe this compound will play a more active role in future production and life.

Step D: Preparation of 1-[4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-3,6-dihydro-1(2H)-pyridinyl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone To a solution of 4-[4-(4,5-dihydro-5-phenyl-3-isoxazolyl)-2-thiazolyl]-1,2,3,6-tetrahydropyridine hydrochloride (i.e. the product of Example 13, Step C) (0.250 g, 0.720 mmol) and 5-methyl-3-(trifluoromethyl)-1H-pyrazole-1-acetic acid (0.150 g, 0.720 mmol) in dichloromethane (10 mL) was added N-(3-dimethylaminopropyl)-N’-ethylcarbodiimide (0.138 g, 0.720 mmol), 1-hydroxybenzotriazole (0.024 g, 0.177 mmol), and triethylamine (0.145 g, 1.44 mmol) at room temperature. The reaction mixture was stirred at room temperature for 24 h. The reaction mixture was diluted with dichloromethane (30 mL) and washed with water (20 mL) and brine (20 mL). The organic layer was separated, washed with water, dried (Na2SO4), and concentrated under reduced pressure and purified by medium-pressure liquid chromatography using 3% methanol in chloroform as eluant to give 200 mg of the title product as a white solid. 1H NMR (CDCl3): delta 2.3 (s, 3H), 2.71-2.75 (m, 2H), 3.42-3.46 (m, 1H), 3.74-3.88 (m, 3H), 4.24-4.27 (m, 2H), 5.02 (s, 2H), 5.71-5.76 (m, 1H), 6.32 (s, 1H), 6.57 (s, 1H), 7.3-7.38 (m, 5H), 7.64 (s, 1H).

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, other downstream synthetic routes, hurry up and to see.

Application of 345637-71-0,Some common heterocyclic compound, 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, molecular formula is C7H7F3N2O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

A 0.15M solution of (2-Aminopyndin-4-yl)(7-isopropyl-7H-pyrrolo[2,3-d]pyrimidin-5- yl)methanone (Preparation 24, 500 uL, 75 umol) in DMA was added to [5-methyl-3- (trifluoromethyl)-1 H-pyrazol-1 -yl]acetic acid (75 uM) followed by NMM (25 uL, 150 umol), DMAP (3.5 umol) and a 0.15M solution of HATU (500 uL, 75 umol) in DMA. The reaction was shaken at 50C for 16 hours. The reaction was concentrated in vacuo and purified using preparative HPLC (Purification method 2 below, initial gradient 25% A, final gradient 55% A) to obtain the title compound as the TFA salt. LCMS Rt = 2.85 minutes MS m/z 472 [M+H]+ The following compounds were prepared as described above for Example 147 using (2- aminopyridin-4-yl)(7-isopropyl-7H-pyrrolo[2,3-d]pyrimidin-5-yl)methanone (Preparation 24) and the appropriate acid with purification using preparative HPLC using one of the two methods below (initial and final gradients for each compound are reported in the table). Purification Method 1 : Column: YMC-pack ODS-AQ 150 x 30mm, 5 um, mobile phase A: acetonitrile; Mobile phase B: 0.1 % TFA in water. Gradient time: 8 minutes. Flow rate: 35 mL/min. Initial/end gradients are reported for each compound below. Purification Method 2: Column: Sepax BR-C18 100 x 21 .2 mm, 5 um, mobile phase A: acetonitrile; Mobile phase B: 0.1 % TFA in water. Gradient time: 8 minutes. Flow rate 30 mL/min. Initial/end gradients are reported for each compound below

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, its application will become more common.

Adding a certain compound to certain chemical reactions, such as: 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 345637-71-0, Recommanded Product: 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid

Example 17 N-[5-({7-[(1R)-2-Hydroxy-1-methylethyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}carbonyl)pyridin-3-yl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetamide (5-Methyl-3-trifluoromethyl-pyrazol-1-yl)acetic acid (46.8 mg, 0.225 mmol) was added to (R,S) (5-aminopyridin-3-yl){7-[(1R)-1-methyl-2-(tetrahydro-2H-pyran-2-yloxy)ethyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}methanone (66 mg, 0.173 mmol) (see Preparation 36), 1-propylphosphonic acid cyclic anhydride (0.31 mL, 0.519 mmol) and DIPEA (0.09 mL, 0.606 mmol) in THF (5 mL). The mixture was heated at reflux for 48 hours, evaporated in vacuo and partitioned between saturated aqueous sodium bicarbonate (5 mL) and ethyl acetate (5 mL). The organic phase was dried over sodium sulfate, evaporated in vacuo and the residue was purified by column chromatography on silica gel (gradient of EtOAc:Hexane 85:15) to afford the intermediate as an off white solid in 53% yield, 52 mg. 10% Hydrochloric acid in 1,4-dioxane (0.4 mL) was added to the intermediate (52 mg, 0.091 mmol) in THF (2 mL) and the mixture was stirred at room temperature for 1.5 hours. The mixture was evaporated in vacuo and triturated with pentane:diethyl ether (3:1, 1 mL) to afford the title compound as an off white solid in 94% yield, 42 mg. 1H NMR (400 MHz, DMSO) delta: 1.49 (d, 3H), 2.32 (d, 3H), 3.56 (m, 1H), 5.00 (m, 1H), 5.20 (s, 2H), 6.56 (s, 1H), 8.45 (s, 1H), 8.54 (s, 1H), 8.79 (s, 1H), 9.02 (s, 2H), 9.48 (s, 1H), 11.05 (s, 1H); LCMS (system 4): Rt=2.86 min; m/z 488 [M+H]+.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, other downstream synthetic routes, hurry up and to see.

Adding a certain compound to certain chemical reactions, such as: 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 345637-71-0, Recommanded Product: 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid

Example 2: This example illustrates the preparation of 3-chloro-2-hydroxy-N-(3-{4-[2-(5- methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide (Compound No. I.ao.003) a) Preparation of 2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-[4-(3-nitro-phenyl)- piperazin-1-yl]-ethanoneTo a solution of (5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid (1.1 g, 5.28 mmol) in DMF (10 mL) is added triethylamine (1.47 mL, 10.57 mmol), followed by 1-hydroxy-7- benzotriazole (0.755 g, 5.55 mmol) and 1-ethyl-3-(3-dimethyllaminopropyl)carbodiimide hydrochloride (1.06 g, 5.55 mmol). After stirring 15 min at RT, 1-(3-nitro-phenyl)-piperazine (1.09 g, 5.28 mmol) is added to the reaction mixture. After stirring overnight at RT, solvent is evaporated and the resulting yellow oil is dissolved in ethylacetate (20 mL), washed with saturated aqueous sodium bicarbonate solution (50 mL), and brine (50 mL). The organic layer is dried over sodium sulfate, filtered, and evaporated under reduced pressure. The crude mixture is purified by column chromatography on silica gel (cyclohexane/ethylacetate 0-80%) to give 2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-1-[4-(3-nitro-phenyl)-piperazin-1-yl]- ethanone (1.24 g, 59%). 1 H-NMR (400 MHz, MeOD): delta =2.31 (s, 3H), 3.31-3.40 (m, 2H), 3.41-3.49 (m, 2H), 3.77-3.85 (m, 4H), 5.25 (s, 2H), 6.43 (s, 1 H), 7.38-7.42 (m, 1 H), 7.44-7.51 (m, 1 H), 7.69-7.72 (m, 1 H), 7.80-7.81 (s, 1 H). MS: m/z = 398 (M+1).

If you are interested in these compounds, you can also browse my other articles.Thank you for taking the time to read this article. I hope you enjoyed it.

Some common heterocyclic compound, 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, molecular formula is C7H7F3N2O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. Product Details of 345637-71-0

1,1-Dimethylethyl 4-[4-[[methyl[(l/?)-l-phenylpropyl]amino]carbonyl]-2-oxazolyl]-l- piperidinecarboxylate (i.e. the product of Example 7, Step E) (209 mg, 0.49 mmol) was dissolved in 3 mL of a mixture of dichloromethane and methanol (1:1), and 1.23 mL (4.9 mmol) of 1 N HCl in dioxane was added. The reaction mixture was stirred at room temperature for 3 h. The solvents were evaporated under reduced pressure, and the residue was dissolved in 5 mL methanol and concentrated under reduced pressure (this procedure was repeated 3 times) to give the amine hydrochloride. To a solution of 5-methyl-3- (trifluoromethyl)-lH-pyrazole-l-acetic acid (89.5 mg, 0.43 mmol) and triethylamine (87 mg, 0.86 mmol) in 2 mL of dry acetonitrile was added a suspension of O-benzotriazol-1-yl- N,N,N’,//’-tetramethyluronium hexafluorophosphate (178.25 mg. 0.47 mmol) in 2 mL acetonitrile and then a mixture of 140 mg (0.43 mmol) of the amine hydrochloride in 2 mL acetonitrile. The resulting mixture was stirred at room temperature for 3 h and concentrated under reduced pressure. The residue was purified by silica gel chromatography using 25-75 % of ethyl acetate in hexanes to give 84 mg of the title product, a compound of the present invention, as an oil.1H NMR (CDCl3) delta 0.90-1.04 (m, 3H), 1.71-1.89 (m, 2H), 1.90-2.19 (m, 4H), 2.28-2.35 (m, 3H), 2.72 (s, 2H), 3.00-3.2 (m, 3H), 3.30-3.36 (t, IH), 3.87-4.35 (m, 2H), 4.98 (s, 2H), 5.92- 6.12 (m, IH), 6.3 (s, IH), 7.25-7.4 (m, 5H), 8.08-8.15 (br s, IH).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 345637-71-0, its application will become more common.

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, A new synthetic method of this compound is introduced below., name: 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid

d) Preparation of 2-(2-chloro-6-fluoro-phenyl)-N-(4-{1-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperidin-4-yl}-thiazol-2-yl)-acetamide (compound I.as.001) To a solution of 2-(2-chloro-6-fluoro-phenyl)-N-(4-piperidin-4-yl-thiazol-2-yl)-acetamide hydrochloride (0.43 g, 1.1 mmol) in 15 ml of N,N-dimethylformamide are added at 0 C. ethyl(diisopropyl)amine (0.35 g, 2.7 mmol), (5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetic acid (0.25 g, 1.2 mmol) and benzotriazol-1-yloxy-tris(dimethylamino)-phosphonium hexafluorophosphate (0.53 g, 1.2 mmol). The reaction mixture is stirred for 16 h at room temperature and then evaporated. The remainder taken up with ethyl acetate, extracted with 1 N aqueous sodium bicarbonate solution, 0.5 N aqueous hydrochloric acid and brine, dried over sodium sulfate and evaporated. The residue is purified by column chromatography on silica gel (cyclohexane/ethyl acetate 3:1) to give 2-(2-chloro-6-fluoro-phenyl)-N-(4-{1-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]piperidin-4-yl}-thiazol-2-yl)-acetamide (compound I.as.001) as white crystals. m.p. 249-251 C. 1H-NMR (400 MHz, CDCl3): delta=1.62 (dd, 2H), 2.04 (t, 2H), 2.30 (s, 3H), 2.71-2.88 (m, 2H), 3.22 (t, 2H), 3.96-4.03 (m, 3H), 4.60 (d, 1H), 4.99 (q, 2H), 6.32 (s, 1H), 6.53 (s, 1H), 7.11 (t, 1H), 7.28-7.33 (m, 2H), 8.66 (s, 1H). MS: m/z=544 (M+1).

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference of 345637-71-0,Some common heterocyclic compound, 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, molecular formula is C7H7F3N2O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

At room temperature, a solution of trifluoroacetic acid solution (30% in dichloromethane, 2 ml) is added dropwise to tert-butyl 4-{4-[(1-naphthylsulphanyl)methyl]-1,3-thiazol-2-yl}piperidine-1-carboxylate (269 mg). The reaction mixture is stirred for 30 minutes, and triethylamine (2 ml) is then added to the reaction mixture.Oxalyl chloride (232 mg) and a drop of N,N-dimethylformamide are added to a solution of [5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetic acid (140 mg) in dichloromethane (5 ml). The reaction mixture is then stirred for 30 minutes. Excess oxalyl chloride is then removed under reduced pressure, and the residue is re-dissolved in dichloromethane (1 ml). The solution is then added to the first solution of trifluoroacetic acid 4-{4-[(1-naphthylsulphanyl)methyl]-1,3-thiazol-2-yl}piperidine (1:1) (III-1) in dichloromethane and triethylamine. The reaction mixture is then warmed to room temperature and stirred for another 20 hours. The solvent is then removed under reduced pressure. The residue is purified by column chromatography. This gives 2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]-1-(4-{4-[(1-naphthylsulphanyl)methyl]-1,3-thiazol-2-yl}piperidin-1-yl)ethanone (134 mg, 36%).logP (pH2.7): 4.331H NMR (CD3CN, 400 MHz): deltappm: 1.50-1.80 (m, 2H), 2.15-2.25 (m, 2H), 2.23 (s, 3H), 2.90 (bs, 1H), 3.20 (m, 1H), 3.25 (bs, 1H), 3.90 (bs, 1H), 4.25 (s, 2H), 4.38 (bs, 1H), 5.04 (bs, 2H), 6.37 (s, 1H), 6.87 (s, 1H), 7.41 (dd, 1H), 7.48-7.56 (m, 2H), 7.63 (d, 1H), 7.80 (d, 1H), 7.89 (m, 1H), 8.33 (s, 1H)MS (ESI): 531 ([M+H]+)

The synthetic route of 345637-71-0 has been constantly updated, and we look forward to future research findings.

Electric Literature of 345637-71-0,Some common heterocyclic compound, 345637-71-0, name is 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, molecular formula is C7H7F3N2O2, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

Preparation of Starting Materials of the Formula (IVb): 1-[4-(4-Acetyl-1,3-thiazol-2-yl)piperidin-1-yl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone (IV-1); Oxalyl chloride (1.74 g) and a drop of N,N-dimethylformamide are added to a solution of [5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetic acid (1.00 g) in dichloromethane (10 ml). The reaction mixture is then stirred for 24 hours. Excess oxalyl chloride is then removed under reduced pressure, and the residue is once more dissolved in dichloromethane (10 ml). With ice-bath cooling, the solution is then added to a suspension of 1-[2-(piperidin-4-yl)-1,3-thiazol-4-yl]ethanone hydrochloride (1.13 g) in dichloromethane (10 ml) and N,N-diisopropylethylamine (1.77 g). The reaction mixture is then allowed to warm to room temperature and stirred for a further 2 hours. Saturated aqueous ammonium chloride solution (5 ml) is then added to the reaction mixture. The aqueous phase is separated off and extracted with dichloromethane. All the organic phases are combined and dried using anhydrous sodium sulphate. The solid is then filtered off, and the solvent is removed under reduced pressure. Purification by column chromatography (silica gel, ethyl acetate:hexane 0%-100% elution gradient) gives 1-[4-(4-acetyl-1,3-thiazol-2-yl)piperidin-1-yl]-2-[5-methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]ethanone (1.00 g, 52%) (log P(pH2.7)=2.25).1H NMR (DMSO-d6, 400 MHz): deltappm: 1.65 (bs, 1H), 1.80 (bs, 1H), 2.18-2.11 (m, 2H), 2.23 (s, 3H), 2.55 (s, 3H), 2.90 (bs, 1H), 3.28 (bs, 1H), 3.39 (m, 1H), 4.00 (bs, 1H), 4.33 (bs, 1H), 5.22 (bs, 2H), 6.45 (s, 1H), 8.36 (s, 1H)MS (ESI): 401 ([M+H]+)

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 2-(5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)acetic acid, its application will become more common.