Application of 54189-82-1, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 54189-82-1, name is 6-Chloro-N-methylnicotinamide, molecular formula is C7H7ClN2O, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.
Example 101 Preparation of N-Methyl-6-(1-oxo-2-(2-(pyrrolidin-1-yl)ethyl)-1,2,3,4-tetrahydro-isoquinolin-6-yloxy)nicotinamide hydrochloride A suspension of NaH (60% dispersion in mineral oil, 0.06 g, 5.4 mmol) in DMF at room temperature was treated dropwise over a 15 min period with a solution of 6-hydroxy-2-(2-(pyrrolidin-1-yl)ethyl)-3,4-dihydroisoquinolin-1(2H)-one (0.2 g, 2.7 mmol) in DMF, stirred at room temperature for 30 min, treated with a solution of 6-chloro-n-methylnicotinamide in DMF, heated at 100 C. overnight, cooled to room temperature, diluted with water and extracted with CH2Cl2. The combined extracts were washed with brine, dried over sodium sulfate and concentrated in vacuo. The residue was purified by ISCO CombiFlash chromatography (silica, 0-15% methanol in methylene plus 0.5% ammonium hydroxide) to afford the free amine of the title product as a colorless oil. The oil was dissolved in ethanol, treated with ethereal HCl, stirred and filtered. The filtercake was washed with ether and dried to provide the title compound as a white solid, 30 mg (10%), mp 228-230 C.; identified by NMR and mass spectral analyses. MS (ES) m/z 395.2 [M+H]+.
According to the analysis of related databases, 54189-82-1, the application of this compound in the production field has become more and more popular.
Reference:
Patent; Wyeth; US2009/69300; (2009); A1;,
Pyridine – Wikipedia,
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