Some tips on 85064-61-5

85064-61-5 Tetrahydropyranyl-4-acetic acid 2773575, aTetrahydropyrans 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.85064-61-5,Tetrahydropyranyl-4-acetic acid,as a common compound, the synthetic route is as follows.

85064-61-5, To a solution of the compound prepared in Example 3 (183 mg) in dimethylformamide (3 mL) were added 4-tetrahydropyranylacetic acid (70 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (105 mg) and dimethylaminopyridine (155 mg) and the solution was stirred over night. After finishing the reaction, water was added to the reaction solution, which was extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated. The obtained residue was purified by column chromatography on silica gel (methylene chloride: methanol=25:1). 4N hydrogen chloride/ethyl acetate solution was added to the reaction mixture, which was concentrated to give the compound of the present invention (79 mg) having the following physical data. TLC:Rf 0.49(chloroform:methanol=10:1); NMR (CD3OD): delta 0.98 (t, J=7.0 Hz, 3H), 1.24-1.69 (m, 8H), 1.87-2.40 (m, 7H), 2.95 (s, 3H), 3.02-3.48 (m, 6H), 3.49-3.61 (m, 2H), 3.87-3.95 (m, 2H), 4.12 (m, 1H), 4.27-4.30 (m, 2H), 7.03 (d, J=9.0 Hz, 2H), 7.06 (d, J=8.5 Hz, 2H), 7.29 (d, J=9.0 Hz, 2H), 7.49 (d, J=8.5 Hz, 2H).

85064-61-5 Tetrahydropyranyl-4-acetic acid 2773575, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; ONO PHARMACEUTICAL CO., LTD.; EP1604981; (2005); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

New learning discoveries about 29943-42-8

29943-42-8, 29943-42-8 Dihydro-2H-pyran-4(3H)-one 121599, aTetrahydropyrans 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.29943-42-8,Dihydro-2H-pyran-4(3H)-one,as a common compound, the synthetic route is as follows.

To a solution of dimethyl carbonate (22.50 g, 249.78 mmol, 5.00 equiv) in tetrahydrofuran (70 ml_) at 0 C was added sodium hydride (6.00 g, 150.00 mmol, 3.00 equiv, 60%). The mixture was stirred at 15 C for 1 h and then the mixture was cooled to 0 C and oxan-4-one (5.00 g, 49.940 mmol, 1.00 equiv) was added dropwise. The resulting solution was stirred for 2 h at 60 C in an oil bath. The reaction was then quenched by the addition of water and the pH adjusted to 6 with hydrogen chloride (2N). The resulting solution was extracted with ethyl acetate (3×20 ml_) and the organic layers combined and concentrated under vacuum. The residue was applied onto a silica gel column with ethyl acetate/petroleum ether (10/90). The collected fractions were combined and concentrated under vacuum to yield methyl 4-oxooxane-3- carboxylate as yellow oil.

29943-42-8, 29943-42-8 Dihydro-2H-pyran-4(3H)-one 121599, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; JANSSEN PHARMACEUTICA NV; LANTER, James C.; WALL, Mark; SUI, Zhihua; (0 pag.)WO2019/171278; (2019); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Downstream synthetic route of 25637-16-5

As the paragraph descriping shows that 25637-16-5 is playing an increasingly important role.

25637-16-5, 4-Bromotetrahydropyran is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

To a solution of 4-bromotetrahydro-2H-pyran (50.0 g, 303 mmol, 1.0 eq) in DMF (300 mL) under a N2 atmosphere was added KSAc (41.5 g, 364 mmol, 1.2 eq) and the mixture was stirred at RT overnight. The mixture was diluted with water (700 mL) and extracted with EtOAc (200 mL*3). The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure to afford the title compound (41.5 g, 68%) as a brown oil. 1H NMR (400 MHz, CDCl3) delta 3.91-3.87 (m, 2H), 3.71-3.64 (m, 1H), 3.57-3.51 (m, 2H), 2.31 (s, 3H), 1.92-1.88 (m, 2H), 1.71-1.62 (m, 2H)., 25637-16-5

As the paragraph descriping shows that 25637-16-5 is playing an increasingly important role.

Reference£º
Patent; Ribon Therapeutics Inc.; Schenkel, Laurie B.; Vasbinder, Melissa Marie; Kuntz, Kevin Wayne; Swinger, Kerren Kalai; (179 pag.)US2019/194174; (2019); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Brief introduction of 1228779-96-1

1228779-96-1, As the paragraph descriping shows that 1228779-96-1 is playing an increasingly important role.

1228779-96-1, 3-Nitro-4-(((tetrahydro-2H-pyran-4-yl)methyl)amino)benzenesulfonamide is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A mixture of 2-((lH-pyrrolo[2,3-b]pyridin-5-yl)oxy)-4-(4-((6-(4- chlorophenyl)-2-oxaspiro[3.5]non-6-en-7-yl)methyl)piperazin-l-yl)benzoic acid (250 mg, 0.43 mmol), 3-nitro-4-(((tetrahydro-2H-pyran-4- yl)methyl)amino)benzenesulfonamide (202 mg, 0.64 mmol), EDCI (164 mg, 0.86 mmol), 4-(N,N-dimethylamino)pyridine (78 mg, 0.64 mmol) in dichloromethane (10 ml) was stirred at room temperature for overnight, followed by concentration. The resulting residue was purified through silica gel column to afford 2-((lH-pyrrolo[2,3- b]pyridin-5-yl)oxy)-4-(4-((6-(4-chlorophenyl)-2-oxaspiro[3.5]non-6-en-7-yl)methyl) piperazin-l-yl)-N-((3-nitro-4-(((tetrahycko-2H-pyran-4-yl)methyl)amino)phenyl) sulfonyl) benzamide (150 mg, 39.6 %) as yellow solid. *H NMR (400 MHz, Methanol-^) delta 8.70 (d, / = 2.3 Hz, 1H), 8.01 (d, / = 2.6 Hz, 1H), 7.87 (dd, / = 9.2, 2.3 Hz, 1H), 7.66 (d, / = 8.8 Hz, 1H), 7.56 (d, / = 2.6 Hz, 1H), 7.47 (d, / = 3.5 Hz, 1H), 7.39 (d, / = 8.4 Hz, 2H), 7.13 (d, / = 8.4 Hz, 2H), 6.97 (d, / = 9.2 Hz, 1H), 6.76 (dd, / = 8.8, 2.4 Hz, 1H), 6.43 (d, / = 3.5 Hz, 1H), 6.32 (d, / = 2.4 Hz, 1H), 4.54 (d, / = 5.9 Hz, 2H), 4.48 (d, / = 5.9 Hz, 2H), 4.03 – 3.94 (m, 2H), 3.67 (s, 2H), 3.55 – 3.27 (m, 12H), 2.69 (s, 2H), 2.35 – 2.25 (m, 2H), 2.08 (t, / = 6.3 Hz, 2H), 2.05 – 1.93 (m, 1H), 1.76-1.69 (m, 2H), 1.45 – 1.35 (m, 2H).

1228779-96-1, As the paragraph descriping shows that 1228779-96-1 is playing an increasingly important role.

Reference£º
Patent; THE REGENTS OF THE UNIVERSITY OF MICHIGAN; WANG, Chia, Wei; CHEN, Jianyong; (131 pag.)WO2018/27097; (2018); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Simple exploration of 85064-61-5

85064-61-5 Tetrahydropyranyl-4-acetic acid 2773575, aTetrahydropyrans compound, is more and more widely used in various fields.

85064-61-5, Tetrahydropyranyl-4-acetic acid is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

85064-61-5, General procedure: Step 5a: The mixture of the crude compound 11a (1.0 eq) orcompound 11b (1.0 eq), HATU (1.5 eq), different acid (1.1 eq) andDIPEA (3.0 eq) in DCM was stirred at room temperature overnightunder N2 atmosphere. When the starting material wasconsumed completely, the mixture was washed with saturatedNaHCO3 solution and water, dried over anhydrous sodium sulfate,filtered and the filtrate was concentrated under reducedpressure to afford the crude product, which was purified bycolumn chromatography to afford the target compounds (2a, 2d,3a-3d,4a-4d, 5a, 5b, 5e-5h and 6a-6f). Enantiomers (S)-5c and(R)-5d were obtained by chiral HPLC separation of 5b.

85064-61-5 Tetrahydropyranyl-4-acetic acid 2773575, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Article; Tian, Jinlong; Sun, Nannan; Yu, Mingcheng; Gu, Xianfeng; Xie, Qiong; Shao, Liming; Liu, Jin; Liu, Li; Wang, Yonghui; European Journal of Medicinal Chemistry; vol. 167; (2019); p. 37 – 48;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Simple exploration of 220641-87-2

As the paragraph descriping shows that 220641-87-2 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.220641-87-2,N-Methyltetrahydro-2H-pyran-4-amine,as a common compound, the synthetic route is as follows.

220641-87-2, HATU (1.391 g, 3.66 mmol) and DIPEA (1.72 mL, 9.85 mmol) were added to a stirred suspension of 5-bromo-2-methoxybenzoic acid (0.752 g, 3.25 mmol) in THF (10 mL) and stirred for 20 min. N-Methyltetrahydro-2H-pyran-4-amine (0.382 g, 3.32 mmol) was added and the reaction mixture left to stir for 18 h. The solvent was removed in vacuo. The reaction mixture was partitioned between DCM (50 mL) and water (50 mL), the aqueous phase was extracted further with DCM (2 x 20 mL) and the organic phase was filtered through a hydrophobic frit and the solvent removed in vacuo. The residue was dissolved in the minimum amount of DCM and purified by silica gel chromatography (120 g) eluting with 0 – 100% ethyl acetate: ethanol (3:1, v/v) in cyclohexane to give the title compound. LCMS (method F): rt = 0.89, [M+H]+ = 328.

As the paragraph descriping shows that 220641-87-2 is playing an increasingly important role.

Reference£º
Patent; GLAXOSMITHKLINE INTELLECTUAL PROPERTY DEVELOPMENT LIMITED; BARTON, Nicholas Paul; BERTRAND, Sophie Marie; DOWN, Kenneth; GRAY, Matthew; (168 pag.)WO2019/141694; (2019); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

New learning discoveries about 1194-16-7

1194-16-7, 1194-16-7 2,2-Dimethyltetrahydropyran-4-one 1738159, aTetrahydropyrans 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.1194-16-7,2,2-Dimethyltetrahydropyran-4-one,as a common compound, the synthetic route is as follows.

Using the procedure described in the second paragraph of Note c. below Table I in Example 2, 3-benzyloxybromobenzene (1.34 g) was reacted with 2,2-dimethyltetrahydropyran-4-one (0.65 g) to give 4-(3-benzyloxyphenyl)-4-hydroxy-2,2-dimethyltetrahydropyran (1.14 g, 72%), as an oil.

1194-16-7, 1194-16-7 2,2-Dimethyltetrahydropyran-4-one 1738159, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; Imperial Chemical Industries PLC; ICI Pharma; US5134148; (1992); A;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Analyzing the synthesis route of 29943-42-8

As the paragraph descriping shows that 29943-42-8 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.29943-42-8,Dihydro-2H-pyran-4(3H)-one,as a common compound, the synthetic route is as follows.

29943-42-8, General procedure: A tetrahydrofuran solution of LHMDS (5.2 mmol) was added dropwise to a solution of the cyclic ketone (5.0 mmol) in tetrahydrofuran (20 ml) at -78 C and the resulting solution was stirred at -20 C for 1 h. The mixture was again cooled to -78 C and methyl cyanoformate (6.0 mmol) was added dropwise. After 10 min, the reaction was quenched with aqueous ammonium chloride and extracted with ether. The organic layer was washed with brine, dried (sodium sulfate) and concentrated. Column chromatography on silica gel (ether-hexane, 1:4 to 3:2) yielded the ester as an oil.

As the paragraph descriping shows that 29943-42-8 is playing an increasingly important role.

Reference£º
Article; Sengupta, Prabal; Puri, Chetan S.; Chokshi, Hemant A.; Sheth, Chetana K.; Midha, Ajay S.; Chitturi, Trinadha Rao; Thennati, Rajamannar; Murumkar, Prashant R.; Yadav, Mange Ram; European Journal of Medicinal Chemistry; vol. 46; 11; (2011); p. 5549 – 5555;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

New learning discoveries about 4677-20-7

4677-20-7, As the paragraph descriping shows that 4677-20-7 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.4677-20-7,4-(2-Bromoethyl)tetrahydropyran,as a common compound, the synthetic route is as follows.

Example 44A Di-tert-butyl [2-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)ethyl](2-oxo-2-{6-[2-(tetrahydro-2H-pyran-4-yl)ethoxy]-1-benzofur-2-yl}ethyl)malonate To a mixture of 200 mg (0.36 mmol) of the compound from Example 43A in 0.75 ml of DMF under argon were added, at RT, 45 mg (0.40 mmol) of potassium tert-butoxide and, after stirring for 5 min at RT, 86 mg (0.44 mmol) of 4-(2-bromoethyl)tetrahydro-2H-pyran, dissolved in 0.25 ml of DMF. The mixture was stirred at a bath temperature of 70 C. for 1.5 h. After cooling to RT, in each case 50 ml of water and ethyl acetate were added, and after phase separation, the aqueous phase was extracted once with 50 ml of ethyl acetate. The combined organic phases were dried over sodium sulphate, filtered and concentrated. The residue was taken up in dichloromethane and purified by column chromatography (silica gel, mobile phase: cyclohexane/ethyl acetate 7:3). 82 mg (32% of theory, purity 94%) of the title compound were obtained. 1H-NMR (400 MHz, CDCl3): delta [ppm]=8.30 (dd, 1H), 8.08 (d, 1H), 7.89 (td, 1H), 7.77-7.72 (m, 1H), 7.57-7.51 (m, 2H), 7.01 (d, 1H), 6.93 (dd, 1H), 4.60-4.53 (m, 2H), 4.07 (t, 2H), 3.98 (dd, 2H), 3.71 (s, 2H), 3.42 (td, 2H), 2.69-2.63 (m, 2H), 1.84-1.76 (m, 3H), 1.73-1.65 (m, 2H), 1.54-1.30 (m, 2H, hidden), 1.49 (s, 18H). LC/MS (Method 1, ESIpos): Rt=1.48 min, m/z=676 [M+H]+.

4677-20-7, As the paragraph descriping shows that 4677-20-7 is playing an increasingly important role.

Reference£º
Patent; BAYER PHARMA AKTIENGESELLSCHAFT; BECK, Hartmut; LI, Volkhart Min-Jian; CANCHO GRANDE, Yolanda; TIMMERMAN, Andreas; BROHM, Dirk; JOeRIssEN, Hannah; BOGNER, Pamela; GERISCH, Michael; LANG, Dieter; (120 pag.)US2017/121315; (2017); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Downstream synthetic route of 14774-37-9

14774-37-9 Tetrahydropyran-4-methanol 2773573, aTetrahydropyrans compound, is more and more widely used in various fields.

14774-37-9, Tetrahydropyran-4-methanol is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

[0217] A solution of (tetrahydro-pyran-4-yl)-methanol (1.0 g, 8.61 mmol, prepared according to WO 99/00385) in methylene chloride (30 mL) at 25 C. was treated with 4-(dimethylamino)pyridine (1.17 g, 9.47 mmol) and p-toluenesulfonyl chloride (1.64 g, 8.61 mmol) and then was allowed to stir at 25 C. overnight. The reaction was then transferred to a separatory funnel and washed with a 1N aqueous hydrochloric acid solution (10 mL), a saturated aqueous sodium bicarbonate solution (10 mL), and a saturated aqueous sodium chloride solution (10 mL), dried over sodium sulfate, filtered, and concentrated in vacuo. Biotage chromatography (FLASH 40S, Silica, 75/25 hexanes/ethyl acetate) afforded toluene-4-sulfonic acid tetrahydro-pyran-4-yl methyl ester (1.77 g, 76%) as a colorless oil. [0218] A solution of toluene-4-sulfonic acid tetrahydro-pyran-4-yl methyl ester (1.77 g, 6.55 mmol) and sodium iodide (2.85 g, 18.99 mmol) in acetone (26 mL) was heated to 60 C. for 16 h. The resulting suspension was then cooled to 10 C. and filtered. The salts were rinsed with cold acetone (5 mL), and the filtrate and washings were concentrated in vacuo to a thick slurry. This slurry was treated with methylene chloride (10 mL). The resulting precipitate was removed by filtration and was washed with methylene chloride (10 mL). The filtrate and washings were then dried over magnesium sulfate, filtered through a pad of silica gel, and then concentrated in vacuo to afford 4-iodomethyl-tetrahydro-pyran as a light yellow oil. [0219] A solution of diisopropylamine (0.33 mL, 2.38 mmol) in tetrahydrofuran (6 mL) cooled to -78 C. under an argon atmosphere was treated with a 2.5M solution of n-butyllithium in hexanes (0.95 mL, 2.38 mmol). The reaction mixture was stirred at -78 C. for 15 min, after which time, a solution of (3-chloro-4-methylsulfanyl-phenyl)-acetic acid methyl ester (prepared as in Example 4, 500 mg, 2.17 mmol) in tetrahydrofuran (1 mL) and 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (0.5 mL) was slowly added via a cannula. The greenish yellow solution was allowed to stir at -78 C. for 1 h, after which time, a solution of 4-iodomethyl-tetrahydro-pyran (588 mg, 2.60 mmol) in 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (0.5 mL) was added via a cannula. The reaction mixture was then allowed to warm to 25 C., where it was stirred for 16 h. The reaction mixture was then quenched by the addition of a saturated aqueous ammonium chloride solution (30 mL). This solution was extracted with ethyl acetate (3¡Á20 mL). The combined organic layers were washed with a 10% aqueous sulfuric acid solution (2¡Á50 mL) and a saturated aqueous sodium bicarbonate solution (2¡Á50 mL), dried over sodium sulfate, filtered, and concentrated in vacuo. Biotage chromatography (FLASH 40S, Silica, 75/25 hexanes/ethyl acetate) afforded 2-(3-chloro-4-methylsulfanyl-phenyl)-3-(tetrahydro-pyran-4-yl)-propionic acid methyl ester (431 mg, 61%) as a yellow oil: EI-HRMS m/e calcd for C16H21ClO3S (M+) 328.0900, found 328.0898. [0220] A solution of 2-(3-chloro-4-methylsulfanyl-phenyl)-3-(tetrahydro-pyran-4-yl)-propionic acid methyl ester (200 mg, 0.61 mmol) in formic acid (0.23 mL) and tetrahydrofuran (0.5 mL) cooled to 0 C. was treated with a 30% aqueous hydrogen peroxide solution (0.35 mL, 3.04 mmol). The reaction was slowly warmed to 25 C. where it was stirred for 16 h. The reaction mixture was then cooled to 0 C., quenched with a saturated aqueous sodium sulfite solution, and then extracted with ethyl acetate (3¡Á20 mL). The organics were dried over sodium sulfate, filtered, and concentrated in vacuo. Biotage chromatography (FLASH 12M, Silica, 60/40 hexanes/ethyl acetate) afforded 2-(3-chloro-4-methanesulfonyl-phenyl)-3-(tetrahydro-pyran-4-yl)-propionic acid methyl ester (190 mg, 87%) as a colorless oil: (ES)+-HRMS m/e calcd for C16H21ClO5S (M+Na)+ 383.0690, found 383.0692. [0221] A, 14774-37-9

14774-37-9 Tetrahydropyran-4-methanol 2773573, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; Corbett, Wendy Lea; Grimsby, Joseph Samuel; Haynes, Nancy-Ellen; Kester, Robert Francis; Mahaney, Paige Erin; Racha, Jagdish Kumar; Sarabu, Ramakanth; Wang, Ka; US2003/225283; (2003); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics