Category: 720706-20-7

720706-20-7,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.720706-20-7,(4-Amino-4-tetrahydropyranyl)methanol,as a common compound, the synthetic route is as follows.

Di-tert-butyl dicarbonate (6.39 g, 29.27 mmol) was added to triethylamine (3.70 g, 36.59mmol), (4-aminotetrahydro-2H-pyran-4-yl)methanol (3.2 g, 24.40 mmol) in THF (40 mL)under nitrogen. The resulting mixture was stirred at 70 C for 5 hours. The reactionmixture was quenched with water (50 mL), extracted with EtOAc (3 x 50 mL), the organic layer was then dried over Na2SO4, filtered and evaporated to afford yellow oil. The crude product was purified by flash silica chromatography, elution gradient 10 to 30% EtOAc in petroleum ether. Pure fractions were evaporated to dryness to afford tert-butyl (4- (hydroxymethyl)tetrahydro-2H-pyran-4-yl)carbamate (4.20 g, 74%) as a white solid. ?HNMR (300 MHz, DMSO, 30C) 1.45 (9H, s), 1.50-1.84 (2H, m), 3.31-3.61 (6H ,m), 4.61- 4.66 (1H, m), 6.36 (1H, s). mlz (ES+), [M+H]+ = 232.

720706-20-7 (4-Amino-4-tetrahydropyranyl)methanol 18316484, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; ASTRAZENECA AB; WARD, Richard, Andrew; GRAHAM, Mark, Andrew; SWALLOW, Steven; JONES, Clifford, David; (282 pag.)WO2016/162325; (2016); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.720706-20-7,(4-Amino-4-tetrahydropyranyl)methanol,as a common compound, the synthetic route is as follows.

720706-20-7, To a stirred solution of 2, 4-dichloro-5-((4-methoxybenzyl) oxy) pyrimidine (2 g, 7.04 mmol) in isopropyl alcohol (30 mL) under an argon atmosphere were added diisopropylethylamine (2.4 mL, 14.08 mmol) and (4-aminotetrahydro-2H-pyran-4-yl) methanol (900 mg, 7.04 mmol) at room temperature. The reaction mixture was stirred at 120 oC for 48 h. After consumption of starting material (monitored by TLC), the volatile components were evaporated in vacuo. The crude material was purified by column chromatography using 20-30% EtOAc:hexanes to afford (4-((2-chloro-5-((4-methoxybenzyl) oxy) pyrimidin-4-yl) amino) tetrahydro-2H-pyran-4-yl) methanol (1 g, 38%) as a white solid. 1H NMR (CDCl3, 400 MHz): delta 7.66 (s, 1H), 7.30 (d, 2H), 6.94 (d, 2H), 5.47 (s, 1H), 5.03 (s, 2H), 4.60 (t, 1H), 3.87-3.83 (m, 5H), 3.80-3.73 (m, 2H), 3.68-3.60 (m, 2H), 1.97-1.87 (m, 4H); LCMS: 379.9 (M+1); (column; X-select CSH C-18 (50 ¡Á 3.0 mm, 3.5 mum); RT 3.07 min. 0.05% Aq TFA: CH3CN; 0.8 mL/min); TLC: 50% EtOAc:hexane (Rf: 0.3).

As the paragraph descriping shows that 720706-20-7 is playing an increasingly important role.

Reference£º
Patent; FORUM PHARMACEUTICALS INC.; BURNETT, Duane, A.; BURSAVICH, Matthew, Gregory; MCRINER, Andrew, J.; WO2015/109109; (2015); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

720706-20-7, (4-Amino-4-tetrahydropyranyl)methanol is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,720706-20-7

The 2-hydroxyethylamine was reacted with isobutyraldehyde according to Method B4c, Step 1 to afford 2-isopropyl-1-aza-3,8-dioxaspiro[4.5]decane

The synthetic route of 720706-20-7 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Bayer Corporation; US6353006; (2002); B1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.720706-20-7,(4-Amino-4-tetrahydropyranyl)methanol,as a common compound, the synthetic route is as follows.

PREPARATION 9l-r(4-methylphenyl)sulfonyl]-6-oxa-l-azaspiror2.51octaneA solution of 4-aminotetrahydro-2H-pyran-4-methanol (16 g, 122 mmol) in dichloromethane (700 mL) was treated with triethylamine (85 mL, 610 mmol), p-toluenesulfonyl chloride (69.8 g, 366mmol) and DMAP (1490 mg, 12.2 mmol) under nitrogen. After approximately 18 hours at room temperature, the reaction was filtered through a pad of silica gel. The filtrate was concentrated in vacuo then purified by chromatography on silica gel (5-20% EtOAc/hexane) to afford intermediate the title compound (12.5g) as a white solid.1H NMR (CDCl3, 500 MHz, ppm) delta 1.92 (m, 2H), 2.08 (m, 2H), 2.47 (s, 3H), 2.52 (s, 2H), 3.76 (m, 2H), 3.99 (m, 2H), 7.35 (d, J=8.0 Hz, 2H), 7.86 (d, J=8.5 Hz, 2H)., 720706-20-7

720706-20-7 (4-Amino-4-tetrahydropyranyl)methanol 18316484, aTetrahydropyrans compound, is more and more widely used in various fields.

Reference£º
Patent; MERCK SHARP & DOHME CORP.; GREENLEE, Mark, L.; WILKENING, Robert; APGAR, James; WILDONGER, Kenneth, James; MENG, Dongfang; PARKER, Dann, L.; WO2010/19203; (2010); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics