With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1202769-66-1,2-(5-Methylisoxazol-3-yl)but-3-yn-2-ol,as a common compound, the synthetic route is as follows.
Step 2-Synthesis of 3-[[1-(2-aminopyrimidin-4-yl)-6-[3-hydroxy-3-(5-methyl-1,2-oxazol-3-yl)but-1-yn-1-yl]-1H-1,3-benzodiazol-2-yl]oxy]propane-1,2-diol A mixture of 3-[[1-(2-aminopyrimidin-4-yl)-6-bromo-1H-1,3-benzodiazol-2-yl]oxy]propane-1,2-diol (80 mg, 0.21 mmol), 2-(5-methyl-1,2-oxazol-3-yl)but-3-yn-2-ol (160 mg, 1.06 mol), bis(triphenylphosphine)palladium(II) dichloride (160 mg, 0.22 mmol) and triethylamine (1 mL) in DMSO (2 mL) was stirred for 5 h at 70 C. under nitrogen atmosphere. The reaction mixture was cooled to room temperature and filtered through a frit filter. The filtrate was purified by preparative HPLC to afford 23 mg (24%) of 3-[[1-(2-aminopyrimidin-4-yl)-6-[3-hydroxy-3-(5-methyl-1,2-oxazol-3-yl)but-1-yn-1-yl]-1H-1,3-benzodiazol-2-yl]oxy]propane-1,2-diol as a white solid. 1H NMR (300 MHz, DMSO) delta 8.38 (d, J=5.4 Hz, 1H), 8.20 (s, 1H), 7.46 (d, J=8.1 Hz, 1H), 7.28 (d, J=8.1 Hz, 1H), 7.07-7.05 (m, 3H), 6.46 (s, 1H), 6.38 (s, 1H), 5.19 (d, J=5.4 Hz, 1H), 4.83-4.80 (m, 1H), 4.64 (d, J=3.6 Hz, 1H), 4.52 (d, J=6.3 Hz, 1H), 3.93 (d, J=4.5 Hz, 1H), 3.52-3.49 (m, 3H), 2.40 (s, 3H), 1.82 (s, 3H); LC-MS: m/z=451 (M+H)+., 1202769-66-1
As the paragraph descriping shows that 1202769-66-1 is playing an increasingly important role.
Reference£º
Patent; Genentech, Inc.; US2012/214762; (2012); A1;,
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