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. 74115-13-2, name is 5-Bromo-3-pyridinol, molecular formula is C5H4BrNO, 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. HPLC of Formula: C5H4BrNO
12a. 5-((2S)-Azetidinylmethyloxy)-3-bromopyridine dibenzoate Triphenylphosphine (4.01 g, 15.3 mmol) and DEAD (2.43 mL, 15.3 mnol) were dissolved in 30 mL of THF at 0 C., and the mixture was stirred for 10 minutes. Samples of 1-t-butyloxycarbonyl-2-(S)-azetidinemethanol (2.86 g, 15.3 mmol, Step 7c above) and 3-bromo-5-hydroxypyridine.(1.51 g, 10.2 mmol, Step 10c above) were added, and the mixture was stirred for 40 hours at room temperature. The volatile components were removed under vacuum, and the residue was triturated with hexane. The separated hexane fraction was concentrated, and the residue was chromatographed (silica gel; hexane/ether, 10:1 to 10:2) to afford 5-bromo-3-((1-t-butyloxycarbonyl-(2S)-azetidinyl)methoxy)pyridine as a colorless oil (1.669 g): 1 H NMR (CDCl3, 300 MHz) delta 1.42 (s, 9H), 2.31 (m, 2H), 3.89 (m, 2H), 4.12 (m, 1 H), 4.322 (m, 1 H), 4.52 (m, 1 H), 7.43 (m, 1 H), 8.29 (m, 2H); MS (CI/NH3) m/z 344 (M+H)+.
With the rapid development of chemical substances, we look forward to future research findings about 74115-13-2.
Reference:
Patent; Abbott Laboratories; US6133253; (2000); A;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem