Brief introduction of 33024-60-1

33024-60-1, The synthetic route of 33024-60-1 has been constantly updated, and we look forward to future research findings.

33024-60-1, Tetrahydro-2H-pyran-4-amine hydrochloride is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Intermediate 1 (2. [5G)] was dissolved in acetonitrile [(15ML).] 4-Aminotetrahydropyran hydrochloride [(1.] [LG)] and N, N-diisopropylethylamine (9. [4ML)] were added and the mixture stirred under nitrogen at [85¡ãC] for 16h. A trace of starting material remained, so an additional portion of 4-aminotetrahydropyran hydrochloride [(O.] [L] lg) was added and stirring continued at [85¡ãC] for a further [16H.] The mixture was then concentrated in vacuo. The residue was partitioned between DCM and water. The layers were separated and the organic layer was washed with further water [(2X20ML)] then dried [(NA2S04)] and concentrated in vacuo. The residue was further purified by chromatography using Biotage (silica, 90g), eluting with cyclohexane: ethyl acetate to afford Example 3 (2.45g). LCMS showed MH+ [= 319] ; TRET = 2. [90MIN.]

33024-60-1, The synthetic route of 33024-60-1 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2004/24728; (2004); A2;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Downstream synthetic route of 33024-60-1

As the paragraph descriping shows that 33024-60-1 is playing an increasingly important role.

33024-60-1, Tetrahydro-2H-pyran-4-amine hydrochloride is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

4-Aminotetrahydropyran hydrochloride (Intermediate 8A, 0. [413G,] 3. 0mmol) was added to a mixture of Intermediate 51 (0.268g, [L.] Ommol) and N, N-diisopropylethylamine (0. [87ML,] [5.] [0MMOL)] in acetonitrile (3ml). The resulting mixture was heated at [85 ¡ãC FOR] 24 hours. Volatiles were removed in vacuo and the residue was dissolved in chloroform (1. [5ML)] and applied to a SPE cartridge (silica, 5g). The cartridge was eluted successively with [ET20,] EtOAc and EtOAc-MeOH (9/1). Fractions containing the desired product were combined and concentrated in vacuo to give the desired product contaminated with starting material (Intermediate [51).] Further purification using a SPE cartridge (silica, 5g) eluting with ethyl acetate-cyclohexane (1/3) afforded Example 189 (0.248g). LCMS showed [MH+ =] 333; [TRET] = 2.75min., 33024-60-1

As the paragraph descriping shows that 33024-60-1 is playing an increasingly important role.

Reference£º
Patent; GLAXO GROUP LIMITED; WO2004/24728; (2004); A2;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Some tips on 33024-60-1

33024-60-1 Tetrahydro-2H-pyran-4-amine hydrochloride 44118693, aTetrahydropyrans compound, is more and more widely used in various.

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.33024-60-1,Tetrahydro-2H-pyran-4-amine hydrochloride,as a common compound, the synthetic route is as follows.

Tetrahydro-2H-pyran-4-ylamine monohydrochloride (228 mg, 1.66 mmol), triethylamine (0.5 ml, 3.59 mmol), 1-ethyl-3-(3′-dimethylaminopropyl)carbodiimide monohydrochloride (367 mg, 1.91 mmol) and hydroxybenzotriazole (190 mg, 1.41 mmol) were added to a solution of 4-methyl-1H-indazole-5-carboxylic acid (225 mg, 1.28 mmol) in N,N-dimethylformamide (5.5 ml), and the resulting mixture was stirred at room temperature for 4 hours. After completion of the reaction, the reaction mixture was diluted with ethyl acetate and washed with a saturated aqueous sodium hydrogencarbonate solution. A small amount of the insoluble material was collected by filtration and then dried to obtain 4-methyl-N-tetrahydro-2H-pyran-4-yl-1H-indazole-5-carboxamide (41 mg). The filtrate was extracted with ethyl acetate and chloroform, and the combined organic layer was dehydrated over magnesium sulfate and then filtered. The filtrate was concentrated and the resulting residue was suspended in chloroform. The resulting suspension was filtered and the precipitate was dried to obtain 4-methyl-N-tetrahydro-2H-pyran-4-yl-1H-indazole-5-carboxamide (134 mg, 52.7percent).1H-NMR (DMSO-d6) delta; 1.45-1.58 (m, 2H), 1.76-1.80 (m, 2H), 2.58 (s, 3H), 3.33-3.42 (m, 2H), 3.84-4.03 (m, 3H), 7.29 (d, J=8.6Hz, 1H), 7.35 (d, J=8.6Hz, 1H), 8.13 (d, J=7.9Hz, 1H), 8.19 (d, J=0.9Hz, 1H), 13.11 (br, 1H)., 33024-60-1

33024-60-1 Tetrahydro-2H-pyran-4-amine hydrochloride 44118693, aTetrahydropyrans compound, is more and more widely used in various.

Reference£º
Patent; Sumitomo Pharmaceuticals Company, Limited; EP1403255; (2004); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics

Downstream synthetic route of 33024-60-1

As the paragraph descriping shows that 33024-60-1 is playing an increasingly important role.

33024-60-1, Tetrahydro-2H-pyran-4-amine hydrochloride is a Tetrahydropyrans compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Step D; To a mixture of the compound described in Step C, Example 2 (240 mg, 0.455 mmol), 4- amino tetrahydrofuran HC1 salt (63 mg, 0.455 mmol), molecular sieve (9i, 200 mg), DIEA (7011L, 0.455 mmol) in DCM (15 mL), was added sodium triacetoxyborohydride (482 mg, 2.275 mmol) and the resulting mixture was stirred overnight at room temperature. The reaction was diluted with DCM, filtered through celite, and evaporated i7l vacuo. The residue was purified by preparative TLC (1000 micron, eluant: 6percent MeOH : 94percent DCM) to afford two separate single isomers (isomer 1, less polar, 75 mg, 28percent ; isomer 2, more polar, 58 mg, 22percent).

As the paragraph descriping shows that 33024-60-1 is playing an increasingly important role.

Reference£º
Patent; MERCK & CO., INC.; WO2005/80371; (2005); A1;,
Tetrahydropyran – Wikipedia
Tetrahydropyran – an overview | ScienceDirect Topics