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. 811442-84-9, name is tert-Butyl (14-amino-3,6,9,12-tetraoxatetradecyl)carbamate, A new synthetic method of this compound is introduced below., category: amides-buliding-blocks

General Procedure XX. PEG Monomethacrylates. Preparation of Compound 43-1 To a solution of mono-Boc-protected PEG4 diamine (1.0 g, 2.97 mmol) in chloroform (30 mL), methacrylic anhydride (0.55 mL, 3.46 mmol) and triethylamine (0.55 mL, 3.95 mmol) were successively added, and the reaction mixture was stirred at room temperature overnight. Then the reaction mixture was concentrated under reduced pressure and the residue was taken up into EtOAc (40 mL). The solution was washed with 1 N HCl (2*40 mL), saturated NaHCO3 (40 mL), and brine (40 mL). The organic layer was dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by reversed phase flash chromatography (C18 SiO2, eluted with gradient of MeOH in water+0.05% TFA) affording the desired intermediate (553 mg, 46% yield) as a colorless oil. The purified oil (553 mg, 1.37 mmol) was dissolved in DCM (5 mL) and treated with TFA (1 mL) for 3 h at room temperature, and then the reaction mixture was concentrated under reduced pressure. The residue was dried under high vacuum yielding desired PEG4-mono-methacrylamide 43-1 (750 mg, quant., TFA salt) as amber oil.

The synthetic route of 811442-84-9 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Profusa, Inc.; GAMSEY, Soya; BERNAT, Viachaslau; KUTYAVIN, Alex; CLARY, Jacob William; PRADHAN, Sulolit; (192 pag.)US2018/179233; (2018); A1;,
Amide – Wikipedia,
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Adding a certain compound to certain chemical reactions, such as: 104060-23-3, name is N-Boc-2-(4-Aminophenyl)ethanol, 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 104060-23-3, Safety of N-Boc-2-(4-Aminophenyl)ethanol

To a solution of tert-butyl (4-(2-hydroxyethyl)phenyl)carbamate (6.90 g, 30 mmol) and imidazole (2.45 g, 36 mmol) in DCM (100 mL), was added dropwise chlorotriisopropylsilane (6.36 g, 33 mmol) at rt. The reaction mixture was stirred for lh and then water was added. The organic layer was washed with brine dried over Na2504 and concentrated under vacuum. The residue was purified by column chromatography (silica gel, DCM) to afford tert-butyl (4-(2-((triisopropylsilyl)oxy)ethyl)phenyl)carbamate (11.7 g, 99%) as a white solid.

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, N-Boc-2-(4-Aminophenyl)ethanol, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; PRINCIPIA BIOPHARMA INC.; BRAMELD, Kenneth A.; VERNER, Erik; WO2014/182829; (2014); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Reference of 24243-71-8, 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. 24243-71-8, name is Propane-1-sulfonamide, This compound has unique chemical properties. The synthetic route is as follows.

To a 100-mL rm.md-hottom flask ‘.Vas added 2-[(1S,4S,5R)-5-[[5-cydopropyl-3-(2,6-dichorophenyl)-1 ,2-oxazol-4-yl]carbonyloxy ]-2-azahicyclol2.2.l]heptan-2-yl]-4-fluoro-l,3-benzothiazole-6-carboxylic acid I-1 (150 mg, 0.25 mmol, 1.0 equiv), dichloromethane (15mL), propane-1-sulfonamide (47 mg, 0.38 mmol, 1.5 equiv.), 4-dimethylaminopyridine (4715 mg, 0.38 mmoL 1.5 equiv), and EDC1 (73 mg, 0.38 mmol, 1.5 equiv) and the resultingmixture was stirred at room temperature for 16 h. 1 00 mL of brine was added and theaqueous mixture was extracted w·ith dichloromethane (l 00 mL x .5). The combined organicextracts ‘.vere dried over anhydrous sodium sulfate, filtered, and concentrated under reducedpressure. The residue was dissolved in 2 mL ofDMF and purified by Prep-HPLC using the20 follo·wing conditions: Column, XBridge C18 OBD Prep Column, 19 mm x 250 rnm; mobilephase, water (0 05% TFA) and ACN (68% to 84% over 8 min): Detector, UV 254 nm, toprovide 48.9 mg (28%) of(lS,4S,5R)-2-[4-fluoro-6-l(propane-l-sulfonyl)carbamoyl]-1,3-benzothiazol-2-y l]-2-azabicydo[2.2.1]heptan-5-y 5-cy dopropy l-3-(2,6-dichlorophenyl)-1 ,2-oxazole-4-carboxylate l-32 as a white solid. 1H NMR (300 MHz, CD30D) 8: 8.08 (d, J = 1.72.5 Hz, 1H), 7.70 — 7.49 (m, 4H), 5.00 (d, J ··· 6.6 Hz, lH), 4.41 (s, lH), 3.62—3.47 (m, 3H),3.23 (s, 1H), 3.00 (p, J 6.7 Hz, 1H), 2.60 (s, 1H), 2.25 (ddd, J 14. L 7.1, 2.5 Hz, lH),199- 1.78 (m, 2H), 1.71 (d, J = 10.6 Hz, HI), l.41- l.28 (m, 6H), 1.10 (t J = 7.5 Hz, 3H). MS (ES, m/z): [M+1l ” 693.25.

The chemical industry reduces the impact on the environment during synthesis Propane-1-sulfonamide. I believe this compound will play a more active role in future production and life.

Reference:
Patent; ARDELYX, INC.; CHAO, Jianhua; JAIN, Rakesh; HU, Lily; LEWIS, Jason Gustaf; BARIBAULT, Helene; CALDWELL, Jeremy; (582 pag.)WO2018/39386; (2018); A1;,
Amide – Wikipedia,
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127-77-5, name is 4-Amino-N-phenylbenzenesulfonamide, 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. COA of Formula: C12H12N2O2S

To a suspension of 2,4-bis(methylthio)pyrido[4,3-d]pyrimidin-5(6H)-one (150 mg, 0.627 mmol) in isopropanol (4 mL) were added 4-amino-N-phenylbenzenesulfonamide (327 mg, 1.316 mmol) and 2 drops of conc. HCl, and the reaction mixture was stirred at reflux for 10 hours. The reaction mixture was cooled, diluted with MeOH (10 mL) and treated with aqueous NaHCO3 solution to adjust pH to 7. The precipitate was collected by filtration and washed with water, and purified using column chromatography (silica gel, 0 to 80% 3:1 DCM:MeOH/DCM) to give 190 mg of product as a pale brown solid. MS (ES) m/z = 440.2 [M+1]+; 1H NMR (400 MHz, DMSO-d6) delta ppm 2.53 (s, 3H), 6.36 (d, J = 7.34 Hz, 1H), 7.01 – 7.16 (m, 3H), 7.20 – 7.28 (m, 2H), 7.60 (d, J = 7.34 Hz, 1H), 7.73 – 7.81 (m, 2H), 7.86 – 7.99 (m, 2H), 10.20 (br.s, 1H), 12.00 (br s, 1H), 12.25 (s, 1H); 13C NMR (101 MHz, DMSO-d6) delta ppm 14.22, 101.22, 105.88, 120.57, 121.12, 124.49, 128.44, 129.60, 134.23, 138.24, 138.31, 142.32, 158.91, 160.38, 163.83, 174.65. HRMS m/z calculated for C20H18N5O3S2 [M + H+]: 440.0851, found 440.0856.

The synthetic route of 127-77-5 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Tian, Xinrong; Suarez, Dominic P.; Li, William Hoi Hong; McSherry, Allison K.; Sanchez, Robert M.; Moore, Michael L.; Axten, Jeffrey M.; Tetrahedron Letters; vol. 60; 49; (2019);,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Application of 6292-59-7, A common heterocyclic compound, 6292-59-7, name is 4-(tert-Butyl)benzenesulfonamide, molecular formula is C10H15NO2S, 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.

EXAMPLE 20 By reacting 4,6-dichloro-5-[(2-methoxy-4-methyl)phenoxy]pyrimidine with p-t-butylbenzenesulfonamide and thereafter with ethylene glycol Na there was obtained p-t-butyl-N-[6-(2-hydroxyethoxy)-5-[(2-methoxy-p-tolyl)oxy]-4-pyrimidinyl]benzenesulfonamide as a solid.

The synthetic route of 6292-59-7 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hoffmann-La Roche Inc.; US5292740; (1994); A;,
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. 15441-10-8, name is 3-(Aminosulfonyl)propanoic acid, This compound has unique chemical properties. The synthetic route is as follows., Computed Properties of C3H7NO4S

3-sulfamoylpropionic acid (Compound 1) (15.0 g, 97.94 mmol) and 2,4-dihydroxybenzoic acid (Compound 2)(10.2 g, 66.18 mmol) were dissolved in acetic anhydride (22.6 mL). Triethylamine (13.2 mL) was carefully addedto the mixture, andthe mixture was heated for 4 hr.After the reaction, it was cooled and diluted with water.The precipitated product was filtered and washed with aqueous methanol togive (7-hydroxy-2-oxo-2H-chromen-3-yl)methanesulfonamide (Compound 3), 21.2 g, yield 85%.

According to the analysis of related databases, 15441-10-8, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Zeng Qingqiang; (12 pag.)CN108586445; (2018); A;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Related Products of 4141-08-6, The chemical industry reduces the impact on the environment during synthesis 4141-08-6, name is 2-Amino-N-methylbenzamide, I believe this compound will play a more active role in future production and life.

To a suspension of A-2 (50 mg, 0.19 mmol) in 3 ml AcOEt (3 ml) at rt under an argon atmosphere were added 2-amino-N-methylbenzamide (29 mg, 0.19 mmol) and N-ethyl-diisopropylamine (0.1 ml, 0.59 mmol). The yellow suspension was cooled to 0 C. and propyl-phosphonic anhydride (50% in AcOEt, 0.31 ml, 0.48 mmol) was added. The suspension was stirred at 0 for 30 min and at rt overnight. The solvent was evaporated. The crude product was purified by silica gel chromatography using a CH2Cl2/MeOH gradient to provide the title compound (46 mg, 61%) as yellow solid.MS: M=389.2 (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-Amino-N-methylbenzamide, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Bleicher, Konrad; Flohr, Alexander; Groebke Zbinden, Katrin; Gruber, Felix; Koerner, Matthias; Kuhn, Bernd; Peters, Jens-Uwe; Sarmiento, Rosa Maria Rodriguez; US2011/306589; (2011); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Electric Literature of 120157-98-4,Some common heterocyclic compound, 120157-98-4, name is tert-Butyl acetylcarbamate, molecular formula is C7H13NO3, 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.

Carbonic acid (1 S,4f?)-4-(6-chloro-purin-9-yl)-cyclopent-2-enyl ester ethyl ester (1 equivalent), acetyl-carbamic acid terf-butyl ester (seeTanaka et al. (1988), supra; 1 .15 equivalents) and triphenyl phosphine (0.15 equivalents) were combined in an oven – dried flask under an atmosphere of argon. Dry deoxygenated THF (to 0.3 M with respect to carbonic acid (1 S,4f?)-4-(6-chloroiDurin-9-yl)-cyclopent-2-enyl ester ethyl ester) was added, followed by Pd2(dba)3 (5 mol%). The reaction mixture was stirred at 500C for 1 hour, and allowed to cool to room temperature, before the volatile components were removed under reduced pressure and the product purified by flash column chromatography/crystallization.

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

Reference:
Patent; NOVARTIS AG; NOVARTIS PHARMA GMBH; WO2007/147659; (2007); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics

Application of 437998-34-0, These common heterocyclic compound, 437998-34-0, name is 2-Amino-3-bromobenzamide, 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.

Step B: Sodium 2,2-difluoro-2-(5-fluoropyridin-2-yl)acetate from Example 2 Step B (0.49 g, 2.3 mmol) and 2-amino-3-bromobenzamide (0.42 g, 1.9 mmol) were combined in trimethylsilylpolyphosphate (4.3 mL) at rt and the mixture was heated at 115 C. for 20 h with vigorous stirring. The mixture was allowed to cool to rt and then was partitioned between water (15 mL) and ethyl acetate (15 mL). The organic layer was separated and the aqueous layer (pH1) was extracted with ethyl acetate (3×30 mL). The combined organic layers were dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography eluting with a 1:10 to 1:1 EtOAc/hexanes to afford 2-[difluoro-(5-fluoro-pyridin-2-yl)-methyl]-8-bromo-3H-quinazolin-4-one as an off-white solid (0.19 g, 22%).

The synthetic route of 437998-34-0 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hadd, Michael J.; Holladay, Mark W.; Rowbottom, Martin; US2012/53174; (2012); 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. 111300-06-2, name is tert-Butyl (trans-4-hydroxycyclohexyl)carbamate, A new synthetic method of this compound is introduced below., Formula: C11H21NO3

To a solution of tert-butyl N-(4- hydroxycyclohexyl)carbamate (710 mg, 3.30 mmol, 1.10 equiv) in 10 mL of distilled THF was added sodium hydride (60% dispersion in mineral oil, 720 mg, 18.00 mmol, 6.00 equiv) at room temperature under nitrogen. After stirring for 30 min, intermediate 15.4 (891 mg, 3.00 mmol, 1.00 equiv) in THF (10 mL) was added via syringe and the resulting solution was stirred for 12 h at room temperature. The reaction was then quenched by the addition of water and extracted with 3 x 50 mL of ethyl acetate. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and concentrated under vacuum. The residue was loaded onto a silica gel column with ethyl acetate/petroleum ether (1 :4 to 1 :2). Purification afforded 18.1 (260 mg, 18%) as a white solid.

The synthetic route of 111300-06-2 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; NIMBUS IRIS, INC.; HARRIMAN, Geraldine, C.; WESTER, Ronald T.; ROMERO, Donna L.; ROBINSON, Shaughnessy; SHELLEY, Mee; WESSEL, Matthew David; GREENWOOD, Jeremy Robert; MASSE, Craig E.; KAPELLER-LIBERMANN, Rosana; WO2013/106535; (2013); A1;,
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics