Amides-buliding-blocks

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. 915087-25-1, name is 4-Amino-2-fluoro-N-methylbenzamide, A new synthetic method of this compound is introduced below., Recommanded Product: 4-Amino-2-fluoro-N-methylbenzamide

Example 44 4-({2-[4-(2-Cyano-5-methylphenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-3-(1-methyl-1H-pyrazol-3-yl)propanoyl}amino)-2-fluoro-N-methylbenzamide (Racemate) 50 mg (0.09 mmol, 80% purity) of 2-[4-(2-cyano-5-methylphenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-3-(1-methyl-1H-pyrazol-3-yl)propanoic acid hydrochloride (racemate) and 24 mg (0.14 mmol, 1.5 eq.) of 4-amino-2-fluoro-N-methylbenzamide were initially charged in 0.8 ml of pyridine, 89 mul (0.37 mmol, 50% in ethyl acetate, 4.0 eq.) of T3P were added and the mixture was stirred at 50 C. for 2 h. The reaction mixture was cooled and purified by means of preparative HPLC (RP18 column, eluent: acetonitrile/water gradient with addition of 0.1% formic acid). Yield: 40 mg (79% of theory). LC/MS [Method 1]: Rt=0.82 min; MS (ESIpos): m/z=543 (M+H)+, 1H-NMR (400 MHz, DMSO-d6): delta [ppm]=10.87 (s, 1H), 8.12-8.03 (m, 1H), 7.80 (d, 1H), 7.71-7.61 (m, 2H), 7.54 (s, 1H), 7.52 (d, 1H), 7.45-7.39 (m, 2H), 7.36 (s, 1H), 6.35 (s, 1H), 5.99 (d, 1H), 5.87 (dd, 1H), 3.74 (s, 3H), 3.65 (s, 3H), 3.54-3.39 (m, 2H), 2.77 (d, 3H), 2.41 (s, 3H).

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:
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; ROeHRIG, Susanne; JIMENEZ NUNEZ, Eloisa; SCHLEMMER, Karl-Heinz; TERSTEEGEN, Adrian; TELLER, Henrik; HILLISCH, Alexander; HEITMEIER, Stefan; SCHMIDT, Martina Victoria; STAMPFUss, Jan; (82 pag.)US2017/298052; (2017); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 518057-72-2, name is 5-Amino-2-fluorobenzamide, belongs to amides-buliding-blocks 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 518057-72-2, Computed Properties of C7H7FN2O

Racemic fr 5-4-[2-Methoxy-4-(trifluoromethoxy)phenoxy]-6-(2- methylcyclopropyl)pyridine-3-carboxylic acid (103 mg, 0.269 mmol) and HATU (103 mg, 0.271 mmol) were combined in DMF (1 mL) and DIEA (94 mu, 0.54 mmol) and stirred for 5 minutes. 5-Amino-2- fluoro-benzamide (62 mg, 0.40 mmol) was added in one portion and the reaction stirred at 45 C for 1 hour. The reaction was diluted with ethyl acetate and washed with 50% saturated aqueous NaHCC and brine, dried over Na2S04, filtered, and concentrated in vacuo. Silica gel chromatography (0-15% methanol/dichloromethane) provided racemic fras-N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy-4- (trifluoromethoxy)phenoxy]-6-(2-methylcyclopropyl)pyridine-3-carboxamide (135 mg, 95%). ESI-MS m/z calc. 519.14, found 520.2 (M+l)+; retention time (Method B): 1.36 minutes (3 minute run). ‘H NMR(400 MHz, DMSO-d6) delta 10.38 (s, 1H), 8.54 (s, 1H), 7.99 (dd, J = 6.4, 2.8 Hz, 1H), 7.82 (ddd, J = 8.9, 4.4, 2.8 Hz, 1H), 7.70 (s, 1H), 7.67 (s, 1H), 7.45 (d, J = 8.8 Hz, 1H), 7.32 – 7.21 (m, 2H), 7.07 (ddd, J = 8.8, 2.7, 1.3 Hz, 1H), 6.55 (s, 1H), 3.80 (s, 3H), 1.81 (dt, J = 8.5, 4.4 Hz, 1H), 1.38 – 1.25 (m, 1H), 1.16 – 1.11 (m, 1H), 1.10 (d, J = 6.0 Hz, 3H), 0.74 (ddd, J = 9.0, 5.9, 3.6 Hz, 1H) ppm. SFC purification (36% methanol/64% CO2, ChiralPak IG (250 x 21.2 mm) 5muiotaeta column, flow =70 mL/min) provided separated enantiomers re/-N-(3-carbamoyl-4-fluoro-phenyl)-4-[2-methoxy-4-(trifluoromethoxy)phenoxy]-6- ((lS,2S)-2-methylcyclopropyl)pyridine-3-carboxamide (113) and re/-N-(3-carbamoyl-4-fluoro-phenyl)-4- [2-methoxy-4-(trifluoromethoxy)phenoxy]-6-((lR,2R)-2-methylcyclopropyl)pyridine-3-carboxamide (114). The absolute stereochemistry of enantiomers 113 and 114 was not determined.

At the same time, in my other blogs, there are other synthetic methods of this type of compound, 5-Amino-2-fluorobenzamide, and friends who are interested can also refer to it.

Reference:
Patent; VERTEX PHARMACEUTICALS INCORPORATED; AHMAD, Nadia; ANDERSON, Corey; ARUMUGAM, Vijayalaksmi; ASGIAN, Iuliana, Luci; CAMP, Joanne, Louise; FANNING, Lev Tyler, Dewey; HADIDA RUAH, Sara, Sabina; HURLEY, Dennis; SCHMIDT, Yvonne; SHAW, David; SHETH, Urvi, Jagdishbhai; THOMSON, Stephen, Andrew; (691 pag.)WO2019/14352; (2019); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 147291-66-5 as follows. Computed Properties of C12H18N2O2

The oil was dissolved in 100 ml of THF, and 3.66 ml of DIPEA and then dropwise 2.60 g of benzyl isocyanate were added to the solution. The mixture was stirred at RT for 16 h, then under reflux for 6 h and then at RT for a further 16 h. It was concentrated and crystallized from 30 ml of ethyl acetate, and the resulting precipitate was filtered off with suction and dried; 4.90 g; ESI-MS [carbamic acid fragment+H+]=300.

According to the analysis of related databases, 147291-66-5, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Abbott GmbH & Co. KG; US7105508; (2006); B1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

25412-53-7, name is 4-Acetamidobenzylamine, belongs to amides-buliding-blocks compound, is considered to be a conventional heterocyclic compound, which is widely used in drug synthesis. The chemical synthesis route is as follows. Product Details of 25412-53-7

EXAMPLE 50 N-(4-acetylamino-phenylmethyl)-3-(4′-trifluoromethylbiphenyl-2-carbonylamino)-benzoic acid amide Prepared analogously to Example 7 from 3-(4′-trifluoromethylbiphenyl-2-carbonylamino)-benzoic acid and 4-acetylaminobenzylamine in dichloromethane with the addition of propanephosphonic acid cycloanhydride and N-methylmorpholine. Yield:38% of theory Rf value:0.60 (silica gel; dichloromethane/ethanol=9:1)

The synthetic route of 25412-53-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Priepke, Henning; Hauel, Norbert; Thomas, Leo; Mark, Michael; Dahmann, Georg; US2002/32238; (2002); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Adding a certain compound to certain chemical reactions, such as: 683-57-8, name is 2-Bromoacetamide, belongs to amides-buliding-blocks 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 683-57-8, category: amides-buliding-blocks

The product of Example 323C (0.025 g, 0.057 mmol) was reacted with cesium carbonate (0.055 g, 0.17 mmol), 2-bromoacetamide (0.012 g, 0.087 mmol) and a catalytic amount of tetrabuylammonium iodide in N,N-dimethylformamide (3 ML) at 25 C. for 2 hours.The reaction was concentrated to half the volume under a stream of nitrogen warmed through a manifold heated to 165 C. The resulting solution was diluted with water and the precipitate was collected by filtration and dried to give the title compound (0.020 g, 72%). MS (ESI-) m/z 498 (M-H)-.The sodium salt of the title compound was prepared according to the procedure of Example 1D. 1H NMR (300 MHz, DMSO-d6) delta ppm 0.90 (m, 3 H) 1.33 (m, 6 H) 1.54 (m, 2 H) 4.49 (s, 2 H) 5.90 (m, 1 H) 7.06 (m, 1 H) 7.21 (m, 2 H) 7.40 (m, 1 H) 7.55 (m, 2 H) 8.07 (dd, J=8.27, 1.29 Hz, 1 H) 16.23 (s, 1 H).

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.

Reference:
Patent; Pratt, John K.; Betebenner, David A.; Donner, Pemela L.; Green, Brian E.; Kempf, Dale J.; McDaniel, Keith F.; Maring, Clarence J.; Stoll, Vincent S.; Zhang, Rong; US2004/87577; (2004); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 102562-86-7, name is 3-(Aminomethyl)benzamide, A new synthetic method of this compound is introduced below., Recommanded Product: 3-(Aminomethyl)benzamide

To a solution of Intermediate 1h (50 mg, 0.152 mmol) and 3-aminomethyl-benzamide (60 mg, 0.228 mmol) in 2 mL DMF, were added iPr2Net (106 muL, 0.608 mmol), HOAT (41.4 mg, 0.304 mmol) and EDCI (35 mg, 0.182 mmol). The mixture was stirred at rt for 14 h, then was diluted with EtOAc. The organic phase was washed with H2O, 1N HCl, H2O, 0.1 N, NaOH, and brine, dried (Na2SO4), and concentrated. The crude product was recrystallized from methanol to afford 7.2 mg (10%) of Example 24. MS (HR-ESI) calculated for C24H24N5O5 (M+H+), found 462.1787; MS (ESI) 462.3 (M+H+), 484.3 (M+Na+); 1H NMR (300 MHz, CD3OD) delta. 8.51 (br. S, 1H), 7.84 (s, 1H), 7.78 (d, J=7.7, 1H), 7.53-7.31 (m, 7H), 5.20 (s, 2H), 5.13 (dd, J=3.0, 1.0, 1H), 4.61-4.37 (m, 2H), 3.25-3.16 (m, 1H), 3.12-3.03 (m, 1H), 2.66-2.55 (m, 1H), 2.32-2.24 (m, 1H).

The synthetic route of 102562-86-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Glunz, Peter W.; US2004/6065; (2004); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Reference of 68524-30-1, These common heterocyclic compound, 68524-30-1, name is 2-[(Diphenylmethyl)thio]acetamide, its 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.

General procedure: VO(acac)2 (2 mol %) and ligand 6 or 10 (3 mol %) were dissolved in CHCl3 (145 muL). The solution turned slightly green-brown after stirring for 60 min. 2-(Benzhydrylthio)acetamide (30 mg, 0.12 mmol) was added, followed by the addition of aqueous H2O2 (30%, 1.2 equiv) in one portion. The reaction mixture was stirred at room temperature for a certain time (see Table 5, entries 2-7). The product was directly purified by column chromatography on silica gel (EtOAc). The isolated enantiomerically-enriched (R)-modafinil was identified through comparison of 1H NMR spectra with literature data (see Ref. 19). The enantiomeric excess of the product was determined by chiral HPLC analysis (Daicel Chiralpak AS, flow 0.9 mL/min, Hex/i-PrOH 60:40, 25 C, 31 bar).

The synthetic route of 68524-30-1 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Stingl, Kerstin A.; Weiss, Katharina M.; Tsogoeva, Svetlana B.; Tetrahedron; vol. 68; 40; (2012); p. 8493 – 8501;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 121492-06-6, name is N-Boc-(2-Aminoethyl)-N-methylamine belongs to amides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Computed Properties of C8H18N2O2

Example 5 : Synthesis of compounds 7 and 80.17 g (1.5 mmol) N-methylpiperid-4-one and 0.178 g (1.0 mmol) N-Boc-N-methyl-1,2- diaminoethane were reacted with 0.42 g (2.0 mmol) sodium triacetoxyborohydride in 5 ml DCE at RT overnight. The reaction was quenched with MeOH and the mixture extracted with DCM and brine (basified to pH > 12), dried with MgS04 and concentrated in vacuo to give 0.31 g (100%) of 7 as an oil. 1H-NMR (300MHz, CDC13): delta = 1H-NMR (300MHz, CDC13): delta = 1.38 (2, m, CH2), 1.45 (9H, s, Boc), 1.76 (1H, br s, NH), 1.85 (2H, m, CH2), 2.00 (2H, m, CH2), 2.27 (3H, s, MeN), 2.46 (1H, m, CH), 2.76 (4H, m, 2xCH2), 2.86 (3H, s, MeN), 3.30 (2H, t, CH2); MS (ESI) m/z = 272.2 +H+).

The synthetic route of 121492-06-6 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; SYNTARGA B.V.; BEUSKER, Patrick, Henry; COUMANS, Rudy, Gerardus, Elisabeth; ELGERSMA, Ronald, Christiaan; MENGE, Wiro, Michael, Petrus, Bernardus; JOOSTEN, Johannes, Albertus, Frederikus; SPIJKER, Henri, Johannes; DE GROOT, Franciscus, Marinus, Hendrikus; WO2011/133039; (2011); A2;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 17193-28-1, name is 1-Amino-1-cyclopentanecarboxamide, This compound has unique chemical properties. The synthetic route is as follows., category: amides-buliding-blocks

To a solution of 1-aminocyclopentane-1-carboxamide (1.00 g, 7.80 mmol) in DCM (16 mL) was added TEA (2.72 mL, 19.50 mmol). The mixture was cooled to 0 C with an ice bath. Propionyl chloride (1.011 g, 10.92 mmol) in DCM (4 mL) was added dropwise to the stirred solution, and the reaction mixture was at RT for 18 hours. The reaction was diluted with 0 and DCM. The organic phase was collected. The aqueous phase was extracted (2X) with DCM. The combined organic phase was washed with brine, dried over sodium sulfate and concentrated to give Intermediate 112a (0.586 g, 3.18 mmol, 40.8 % yield) as a solid. LC-MS (Method A2) RT =0.46 min, MS (ESI) m/z: 185.1 (M+H)+. 1H NMR (400 MHz, CDCl3) delta 9.37 – 9.15 (m, 2H), 8.71 (br d, J=0.9 Hz, 1H), 2.42 (q, J=7.4 Hz, 2H), 2.39 – 2.29 (m, 2H), 1.85 – 1.68 (m, 4H), 1.67 – 1.58 (m, 2H), 1.14 – 1.10 (m, 3H).

Chemical properties determine the actual use. Each compound has specific chemical properties and uses. We look forward to more synthetic routes in the future to expand reaction routes of 17193-28-1.

Reference:
Patent; UNIVERSITE DE MONTREAL; BRISTOL-MYERS SQUIBB COMPANY; PRIESTLEY, Eldon, Scott; REZNIK, Samuel, Kaye; RUEDIGER, Edward, H.; GILLARD, James, R.; HALPERN, Oz, Scott; JIANG, Wen; RICHTER, Jeremy; RUEL, Rejean; TRIPATHY, Sasmita; YANG, Wu; ZHANG, Xiaojun; (642 pag.)WO2018/5591; (2018); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

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. 85118-03-2, name is 2,5-Difluorobenzamide, A new synthetic method of this compound is introduced below., HPLC of Formula: C7H5F2NO

Example 4((S -N-((R)-l-(5-benzyl-2-(2,5-difluorophenyl)oxazol-4-yl)-2,2-dimethylpropyl)-N- -4-fluoropyrrolidiii-3-yl)methyl)-2-hydroxypropanainide[00160] Ethyl 3-bromo-2-oxo-4-phenylbutanoate (3.0 g, 10.5 mmol) and 2,5- difluorobenzamide (4.0 g, 25.5 mmol) in a seal tube was heated at 100 C for 15 h. After cooled down, the precipitate was filtered off with methanol washes. After the filtrate was removed in vacuo, the crude product was purified by automated column chromatography (10% to 60% EtOAc in Hexanes). Ethyl 5-benzyl-2-(2,5-difluorophenyl)oxazole-4- carboxylate contaminated with inseparable side products was obtained (735 mg, 20.4%), which was used for the next step without any further purification. LC/MS (uplc): MH+ 344.1, 1.15 min.

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:
Patent; NOVARTIS AG; BARSANTI, Paul, A.; DING, Yu; HAN, Wooseok; WO2011/128388; (2011); A2;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics