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. 13627-49-1, name is 2-Methylpyrimidine-4-carboxylic acid, molecular formula is C6H6N2O2, 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. SDS of cas: 13627-49-1
Example 76cis 2-Methyl-pyrimidine-4-carboxylic acid [2-(3,5-difluoro-phenyl)-1-oxo-2-aza-spiro[4.5]dec-7-yl]-amide Example 76 was also prepared from intermediate 33 via the process of Scheme 1, supra, as follows:In a round-bottom flask was charged with cis-7-amino-2-(3,5-difluoro-phenyl)-2-aza-spiro[4.5]decan-1-one. HCl (10.8 g, 34.1 mmol), 2-methylpyrimidine-4-carboxylic acid (4.71 g, 34.1 mmol), and BOP (15.1 g, 34.1 mmol). Methylene chloride (218 mL) was added, and the mixture was cooled at 0 C. Triethylamine (14.2 mL, 102 mmol) was added dropwise. The mixture was warmed up to rt and stirred at rt overnight. The mixture was diluted with methylene chloride (100 mL) and water (50 mL). The aqueous layer was extracted with CH2Cl2 (100 mL). The combined organic layer was washed with brine, dried over Na2SO4 and concentrated under reduced pressure. The residue obtained was crystallized from ethyl acetate to afford 8.8 g (77%) of the title compound cis 2-Methyl-pyrimidine-4-carboxylic acid [2-(3,5-difluoro-phenyl)-1-oxo-2-aza-spiro[4.5]dec-7-yl]-amide: 1H NMR (400 MHz, CDCl3): delta8.85 (d, J=5.0 Hz, 1H), 8.10 (d, J=8.1 Hz, 1H), 7.89 (d, J=5.4 Hz, 1H), 7.28-7.35 (m, 2H), 6.60 (tt, J=8.8, 2.5 Hz, 1H), 4.07-4.18 (m, 1H), 3.74-3.80 (m, 2H), 2.79 (s, 3H), 2.07-2.28 (m, 3H), 1.89-1.97 (m, 2H), 1.55-1.85 (m, 4H), 1.37-1.48 (m, 1H). ESI-MS m/z: 401 (M+H)+.
With the rapid development of chemical substances, we look forward to future research findings about 13627-49-1.
Reference:
Patent; H. LUNDBECK A/S; US2011/98299; (2011); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia