New learning discoveries about 2-((1H-Pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-(4-((4′-chloro-5,5-dimethyl-3,4,5,6-tetrahydro-[1,1′-biphenyl]-2-yl)methyl)piperazin-1-yl)benzoic acid

1235865-77-6, As the paragraph descriping shows that 1235865-77-6 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1235865-77-6,2-((1H-Pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-(4-((4′-chloro-5,5-dimethyl-3,4,5,6-tetrahydro-[1,1′-biphenyl]-2-yl)methyl)piperazin-1-yl)benzoic acid,as a common compound, the synthetic route is as follows.

In round bottom flask equipped with mechanical stirrer and thermometer, to dichloromethane (400 ml), 3-nitro-4-((tetrahydro-2H-pyran-4-yl)methylamino)benzenesulfonamide (VI) (17.6 g), 4-dimethylaminopyridine (DMAP) (4.25 g) and l-ethyl-3-[3- (dimethylamino)propyl]-carbodiimide hydrochloride (EDC.HCI) (20.12 g) were added. To this mixture was added a solution of intermediate (V) (40 g) in dichloromethane (400 ml) and trimethyl amine (18.8 ml) and maintained for 22 hrs. To this mixture was then added water (400 ml), the dichloromethane layer was separated, washed with water and concentrated under reduced pressure. The residue obtained was purified by using mixture of ethyl acetate and xylene to give venetoclax (31 g)

1235865-77-6, As the paragraph descriping shows that 1235865-77-6 is playing an increasingly important role.

Reference£º
Patent; LUPIN LIMITED; RAJPUT, Lalitkumar, Dilipsing; VYAVHARE, Vasant, Chhabu; SHIVDAVKAR, Radhakrishna, Bhikaji; SUDRIK, Yuvraj, Dadasaheb; MITRA, Rangan; GOKHALE, Sangram; GOHEL, Sunilkumar, Vinubhai; SIYAN, Rajinder, Singh; BHISE, Nandu, Baban; SINGH, Girij, Pal; (54 pag.)WO2018/225043; (2018); A1;,
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New learning discoveries about Methyl 1-Boc-piperazine-2-carboxylate

As the paragraph descriping shows that 129799-15-1 is playing an increasingly important role.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.129799-15-1,Methyl 1-Boc-piperazine-2-carboxylate,as a common compound, the synthetic route is as follows.

To a mixture of 1-tert-butyl 2-methyl piperazine-1,2-dicarboxylate (5.0 g, 22.6 mmol, 1.00 eq) in MeOH (50.0 mL) was added HCl/dioxane (4.0 M, 134 mL). The reaction mixture was degassed and purged with nitrogen 3 times, and the mixture was stirred at 25¡ã C. for 12 hours under a nitrogen atmosphere. The reaction mixture was concentrated under reduced pressure to dryness to give methyl piperazine-2-carboxylate (4.89 g, 2HCl, crude) as a white solid, which was used directly in the next step without further purification., 129799-15-1

As the paragraph descriping shows that 129799-15-1 is playing an increasingly important role.

Reference£º
Patent; Mirati Therapeutics, Inc.; Array BioPharma Inc.; Blake, James F.; Burgess, Laurence E.; Chicarelli, Mark Joseph; Christensen, James Gail; Cook, Adam; Fell, Jay Bradford; Fischer, John P.; Marx, Matthew Arnold; Mejia, Macedonio J.; Savechenkov, Pavel; Vigers, Guy P.A.; Smith, Christopher Ronald; Rodriguez, Martha E.; US2019/144444; (2019); A1;,
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Downstream synthetic route of 4-((4-Methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline

694499-26-8 4-((4-Methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline 46838908, apiperazines compound, is more and more widely used in various fields.

694499-26-8, 4-((4-Methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a solution of 3-iodo-4-methylbenzoyl chloride obtained above in dry DCM (10mL) at 0C was added Et3N (0.28mL, 2.0mmol) and 4-((4-methylpiperazin-1-yl) methyl)-3-(trifluoromethyl) aniline (328mg, 1.2mmol). The mixture was stirred at room temperature for 5h, and then the solvent was removed under reduced pressure. The residue was purified by using column chromatography to afford the corresponding product 6-1 (439mg, 2 steps yield: 85%)., 694499-26-8

694499-26-8 4-((4-Methylpiperazin-1-yl)methyl)-3-(trifluoromethyl)aniline 46838908, apiperazines compound, is more and more widely used in various fields.

Reference£º
Article; Liu, Yang; Peng, Xia; Guan, Xiaocong; Lu, Dong; Xi, Yong; Jin, Shiyu; Chen, Hui; Zeng, Limin; Ai, Jing; Geng, Meiyu; Hu, Youhong; European Journal of Medicinal Chemistry; vol. 126; (2017); p. 122 – 132;,
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Simple exploration of 112984-60-8

112984-60-8 6-Fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid 124225, apiperazines compound, is more and more widely used in various fields.

112984-60-8, 6-Fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Synthesis of 6-FIisoro-7-{4-[3-hydroxy-4-(2-methyl-5-iiitro- imida2o-l-yl)-buty|-piperazin-l-yi}-1 -niethyl-4-ox0-4H~2 hia-8b-a2a- cyclobiita[a]naphthaIeiie-3-carboxySic acid (116): To a stirred solution of 6- Fluoro- I -methyl-4-oxo-7-piperazin-l -yi-4H-2-thia-8b-aza- cycIobuta a]naphthalene-3-carboxyIie acid, (III) (3g, 8.6 mmol) in DMF (30ral) was added potassium carbonate ( S .20g, 8.6 mmol) followed by addition of compound (II) (2g, 7.2 mmol) and the reaction mixture was stirred at RT for 16h. The reaction mixture was diluted with ethyl acetate, washed twice with water and finally dried over sodium sulphate to obtain the crude mass. The crude was purified by flash column chromatography while eiuting with 3-5% methanol/dichloromethane mixture to obtain the pure compound (116) with 20% isolated yield. -NMR (400 MHz, DMSO) deltarhorhoetaiota: 1.61-1.68 (2H, m, CH2), 2.12 (3H, d, J = 6 Hz, CH3), 2.46 (3H, s, CH3), 2.57 (4H, m, 2 x CH2), 3.2 (4H, m, 2 x CH2), 3.8-4.1 (2H, m, 2 x’ CH2N), 4.44(1H, m, CHOH), 5.2 (1H, bs, CHOH), 6.4 (1H, q, Ji = 5.6Hz, J2 = 1 1.6Hz, CHSN) 6.91 (1 H, d, J = 7, Ar-H), 7.78 (1H, d, J= 13.6 Hz, Ar-H). 8.04 (I H, s, Ar-H). ESI-MS (m/z): 547.08(M+H)+., 112984-60-8

112984-60-8 6-Fluoro-1-methyl-4-oxo-7-(piperazin-1-yl)-1,4-dihydro-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid 124225, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; VYOME BIOSCIENCES PVT. LTD.; SENGUPTA, Shiladitya; CHAWRAI, Suresh Rameshlal; GHOSH, Shamik; GHOSH, Sumana; JAIN, Nilu; SADHASIVAM, Suresh; BUCHTA, Richard; BHATTACHARYYA, Anamika; WO2015/114666; (2015); A2;,
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New learning discoveries about 1-Cyclopropylpiperazine

The synthetic route of 20327-23-5 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.20327-23-5,1-Cyclopropylpiperazine,as a common compound, the synthetic route is as follows.

General procedure: Methane sulfonyl chloride (58 muL, 0.7 mmol) and triethylamine (238 muL) was added to a solution of compound 2 (180 mg, 0.6 mmol) in dichloromethane (5 mL) and stirred at room temperature for 1 h. After completion of the reaction by TLC, ice water was added to quench the reaction. The mixture was extracted with dichloromethane (20 mL¡Á3). The organic layer was washed with brine and dried over Na2SO4. The solid was filtered off, and the filtrate was concentrated under reduced pressure to give the methylsulfonylated product (210 mg, yield 93%). To a solution of the methylsulfonylated product (210mg, 0.6 mmol) in DMF (5 mL) was added K2CO3 (111 mg, 0.8 mmol), morpholine (93 muL, 1.0 mmol). The mixture was stirred at 90 C for 2 h. After completion of the reaction by TLC, The mixture was extracted with dichloromethane (20 mL¡Á3). The organic layer was washed with brine and dried over Na2SO4. The solid was filtered off, and the filtrate was concentrated under reduced pressure. The residues were separated by silica gel column chromatography (V petroleum ether: V ethyl acetate = 8:1) to give CH-H-1 (108 mg, yield 53%). Under the same conditions, compounds CH-H-2 to CH-H-16 were obtained., 20327-23-5

The synthetic route of 20327-23-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Duan, Zhe; Liu, Jingqiu; Niu, Liping; Wang, Jun; Feng, Mingqian; Chen, Hua; Luo; Bioorganic and Medicinal Chemistry; vol. 27; 15; (2019); p. 3229 – 3236;,
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Brief introduction of 109-07-9

The synthetic route of 109-07-9 has been constantly updated, and we look forward to future research findings.

109-07-9, 2-Methylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Synthesis of 3-methyl-1-thiazol-2-ylpiperazine 30.06 g (300.0 mmol) of 2-methylpiperazine were combined with 4.51 ml (50.0 mmol) of 2-bromothiazole. This mixture was fused and refluxed 5 min. The reaction mixture was cooled and taken up in 10% strength hydrochloric acid and washed with EA. The aqueous phase was set to pH>12 with a 10% strength aq. NaOH solution and then extracted with EA. The organic phase was dried over MgSO4 and conc. in vacuo. There were obtained 8.26 g (45.1 mmol, 90%) of 3-methyl-1-thiazol-2-ylpiperazine., 109-07-9

The synthetic route of 109-07-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Gruenenthal GmbH; US2007/112011; (2007); A1;,
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Some tips on 122833-04-9

122833-04-9, 122833-04-9 2-Methoxy-4-(4-methylpiperazin-1-yl)aniline 20136253, apiperazines compound, is more and more widely used in various fields.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.122833-04-9,2-Methoxy-4-(4-methylpiperazin-1-yl)aniline,as a common compound, the synthetic route is as follows.

6-chloro-4-(3-nitTophenoxy)- l -(tetrahydro-2H-pyran-2-yl)-l H-pyrazolo[3,4-d]pyrimidine (4, 0.15 g, 0.4 mmol), 2-methoxy-4-(4-methylpiperazin-l-yl) aniline (5, 88 mg, 0.4 mmol), Pd(OAc)2 (5 mg, 0.02 mmol), X-phos (23 mg, 0.04 mmol) and Cs2C03 (390 mg, 1.2 mmol) were taken up in tetrahydrofuran (THF) (2 mL) to form a mixture and the mixture was placed under microwave irradiation at 85 C for 45 min. The progress of the reaction was monitored by TLC. After completion of the reaction, the reaction mixture was concentrated, and water was added. The resulting mixture was then extracted with ethyl acetate and the organic extract was dried over anhydrous sodium sulfate and evaporated to dryness to form a crud product. The crude product was purified by column chromatography using 3 % MeOH-DCM to afford N-(2-methoxy-4-(4-methyl piperazin-l -yl) phenyl)-4-(3-nitrophenoxy) -l -(tetrahydro-2H-pyran-2-yl)-l H-pyrazolo [3,4- d]pyrimidin-6-amine (6, 49 mg, 22 %). NMR (400 MHz, CDC13): delta 8.30-8.22 (m, 2H), 7.95 (s, 1H), 7.68-7.60 (m, 3H), 7.40 (s, 1 H), 6.55 (s, 1 H), 5.90-5.85 (d, 1 H), 4.19-4.10 (d, 1 H), 3.85 (s, 3H), 3.80-3.79 (m, 1 H), 3.18 (bs, 4H), 2.65-2.60 (m, 5H), 2.36 (s, 3H), 2.19-2.18 (m, 1 H), 1.95- 1 .90 (d, 1 H), 1.80- 1.78 (m, 2H), 1 .65- 1.60 (d, 1 H).

122833-04-9, 122833-04-9 2-Methoxy-4-(4-methylpiperazin-1-yl)aniline 20136253, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; GATEKEEPER PHARMACEUTICAL, INC.; GRAY, Nathanael, S.; ZHOU, Wenjun; WO2011/79231; (2011); A1;,
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Some tips on 5308-25-8

5308-25-8 1-Ethylpiperazine 79196, apiperazines compound, is more and more widely used in various fields.

5308-25-8, 1-Ethylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,5308-25-8

5-Ch.oro-2-nitroaniline (3g, 17.4mmol), 1-ethylpiperazine (4.42ml, 34.9mmol) and potassium carbonate (2.4g, 17.4mmol) in DMF (8ml) were heated at 130C for 2h in a Smithcreator microwave. The mixture was diluted with water and ethyl acetate. A yellow solid formed, it was filtered off and dried to give 1.3g of the title compound. LC/MS Rt = 1.21 , [MH+] 251.2, 252.2

5308-25-8 1-Ethylpiperazine 79196, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2006/114272; (2006); A1;,
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Analyzing the synthesis route of 1-Boc-3-Carbamoylpiperazine

The synthetic route of 112257-24-6 has been constantly updated, and we look forward to future research findings.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.112257-24-6,1-Boc-3-Carbamoylpiperazine,as a common compound, the synthetic route is as follows.,112257-24-6

A mixture of (S) -2- (3- (benzyloxy) -4- (difluoromethoxy) phenyl) -5- (1- ( (tert-butoxy carbonyl) amino) ethyl) oxazole-4-carboxylic acid (300 mg, 0.595 mmol) , EDCI (170 mg, 0.892 mmol) and HOAT (125 mg, 0.892 mmol) in DCM (20 mL) was stirred at rt for 30 min, and tert-butyl 3-carbamoylpiperazine-1-carboxylate (164 mg, 0.714 mmol) was added, and then DIPEA (0.31 mL, 1.78 mmol) was added dropwise at 0 . After the addition, the mixture was stirred at rt for 10 h and washed with water (25 mL ¡Á 3) . The organic layer was dried over anhydrous Na2SO4 and concentrated. The residue was purified by silica gel chromatography eluted with Petroleum ether/EtOAc (v/v) 1/1 to give the title compound as a white solid (330 mg, 77) .MS-ESI: m/z 716.30 [M+H] +.

The synthetic route of 112257-24-6 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; SUNSHINE LAKE PHARMA CO., LTD.; ZHANG, Yingjun; LIU, Bing; YU, Tianzhu; ZHANG, Xiangyu; ZHANG, Shiguo; ZHANG, Jiancun; CHENG, Changchung; (426 pag.)WO2016/34134; (2016); A1;,
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Some tips on 1-Isopropylpiperazine

4318-42-7 1-Isopropylpiperazine 78013, apiperazines compound, is more and more widely used in various fields.

4318-42-7, 1-Isopropylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,4318-42-7

N, N -CARBONYLDIIMIDAZOLE (11. 0G, 67.5 mmol) was added to a solution of D8 (14.9 g, 32.2 mmol) in DMAC (100 mL) at room temp. Vigorous gas evolution was evident. The reaction mixture was stirred for 1 hour forming a yellow ppt after 15 min. Additional DMAC (50 mL) was added to aid stirring. i-Propylpiperazine (9.5 g, 74.0 mmol) was added and the reaction mixture became homogeneous. The reaction mixture was stirred overnight, forming a yellow ppt, then poured into H20 (1000 mL). The solid was collected by filtration, suspended in ETOH (300 mL) and heated to boiling. After cooling slightly, the solid was collected by filtration, rinsed with ETOH (50 mL), then Et2O (100 mL), and dried under vacuum to give D9 (17.4 g, 94 percent yield) as a yellow solid.

4318-42-7 1-Isopropylpiperazine 78013, apiperazines compound, is more and more widely used in various fields.

Reference£º
Patent; GPC BIOTECH, INC.; WO2004/92139; (2004); A2;,
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Piperazines – an overview | ScienceDirect Topics