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CAS No. : | 36082-50-5 | MDL No. : | MFCD00127818 |
Formula : | C4HBrCl2N2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | SIKXIUWKPGWBBF-UHFFFAOYSA-N |
M.W : | 227.87 | Pubchem ID : | 289973 |
Synonyms : |
|
Signal Word: | Danger | Class: | 8,6.1 |
Precautionary Statements: | P261-P280-P301+P310-P305+P351+P338-P310 | UN#: | 2923 |
Hazard Statements: | H301+H311+H331-H314-H317 | Packing Group: | Ⅱ |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 20.0℃; for 20.0h; | To a mixture of 2,4-dichloro-5-bromopyrimidine (244 mg, 1.07 mmol) and benzyl (ls,4s)-4-aminocyclohexylcarbamate (266 mg, 1.07 mmol) in CH3CN (5 mL), DIEA (0.373 <n="192"/>mL, 2.14 mmol) was added. The mixture was stirred at room temperature for 20 h. Water and EtOAc were added. The organic phase was separated, washed with IN HCl, then with 5% NaHCCbeta, dried over Na2SO4, concentrated in vacuo to give benzyl (ls,4s)-4-(5-bromo-2- chloropyrimidin-4-ylamino)cyclohexylcarbamate |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | With potassium carbonate;tetra(n-butyl)ammonium hydrogensulfate; In N,N-dimethyl-formamide; at 65℃; for 7.0h; | Step 1 : Synthesis of 26A suspension of 5-bromo- 2,4-dichloropyrimidine (2.8 g, 12.3 mmol, 1.0 eq), 2- dimethylphosphonylbenzeneamine (2.08 g, 12.3 mmol, 1.0 eq), K2C03 (2.04 g, 14.8 mmol, 1 .2 eq), and nBu4HS04 (417 mg, 1 .23 mmol, 0.1 eq) in 50 mL of DMF was stirred at 65 °C for 7 hours and cooled to room temperature. After a filtration, the filtrate was evaporated to an oil, which was chromatographed (DCM/MeOH 20: 1 ) to give a yellow solid, 2.9 g, in 66percent yield. |
66% | With tetrabutylammonium hydrogensulfate; potassium carbonate; In N,N-dimethyl-formamide; at 65℃; for 7.0h; | A suspension of 5-bromo- 2,4-dichloropyrimidine (2.8 g, 12.3 mmol, 1.0 eq), 2- dimethylphosphonylbenzeneamine (2.08 g, 12.3 mmol, 1.0 eq), K2CO3 (2.04 g, 14.8 mmol, 1.2 eq), and nBu4HS04 (417 mg, 1.23 mmol, 0.1 eq) in 50 mL of DMF was stirred at 65 °C for 7 hours and cooled to room temperature. After a filtration, the filtrate was evaporated to an oil, which was chromatographed (DCM/MeOH 20:1 ) to give a yellow solid, 2.9 g, in 66percent yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-ethyl-N,N-diisopropylamine; In acetonitrile; at 80℃; for 0.166667h;Microwave irradiation; | Example 273: Preparation of 5-bromo-2-chloro-4-(2-(methoxymethyl)phenoxy)pyrimidine5-Bromo-2,4-dichloropyrimidine (0.150 g, 0.658 mmol), <strong>[5635-98-3]2-(methoxymethyl)phenol</strong> (0.091 g, 0.658 mmol) and N-ethyl-N-isopropylpropan-2-amine (0.1 15 ml, 0.658 mmol) were mixed in acetonitrile (3 ml). The mixture was microwaved at 80 C for 10 min and then concentrated and used as-is. MS calcd for [Ci2H10BrClN2O2+H]+: 328.97, found 328.70. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
31% | 5-Bromo-2,4-dichloro-pyrimidine (2.12 g; 9.33 mmol; 2.00 eq.) was added to a suspension of NaH (134 mg; 5.6 mmol; 1.20 eq.) in THF (16 mL) maintained at 0°C. The reaction mixture was stilTed for 5 mm before the addition of 3-Aminomethyl-piperidine-1- carboxylic acid tert-butyl ester (1.0 g; 4.67 mmol; 1.00 eq.). It was then stilTed at 0°C overnight, diluted with methanol, filtered through a celite pad and concentrated. Purification by flash chromatography on silica (EtOAc:Hexane, gradient from 0 to 100percent then MeOH:DCM, gradient from 0 to 20percent) afforded the title compound in the second eluting fraction as a white powder (587 mg, 3 1percent). 1H NMR (400 MHz, Chloroform-d) oe 8.22 (s, 1H), 4.84 (brs, 1H), 4.37 - 4.12 (m, 2H), 3.25 - 3.09 (m, 2H), 3.03 (m, 1H), 2.99 - 2.86 (m, 1H), 1.90 (m, 2H), 1.81 (m, 1H), 1.67 (m, 1H), 1.46 (s, 9H), 1.32 (m, 1H). LC/MS: 405.0 (M+1). |
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