反应详情

{1-Piperidin-4-yl-3-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile (30.0 mg, 0.0609 mmol, prepared as described in Example 1, Step H, except worked up to provide the free base) was added to a mixture of 6-[(diethylamino)methyl]-2-(trifluoromethyl)pyrimidine-4-carboxylic acid (22.8 mg, 0.0822 mmol, from Step A), triethylamine (33.9 μL, 0.244 mmol) and N,N,N′,N′-tetramethyl-O-(7-azabenzotriazol-1-yl)uronium hexafluorophosphate (28.9 mg, 0.0761 mmol) in tetrahydrofuran (0.67 mL), that was prestirred for 30 minutes. After stirring overnight, the reaction mixture was partitioned between ethyl acetate and water. The organic layer was washed successively with water, 0.1N NaOH and sat. NaCl, dried over sodium sulfate, filtered and concentrated. The residue was stirred in a 1:1 mixture of DCM:TFA for 1 hour, and solvents were removed in vacuo. The residue was then stirred with ethylenediamine (0.2 mL) in methanol (1 mL) until deprotection was complete. Purification via preparative HPLC-MS (MeCN/H2O containing 0.15% NH4OH) afforded product. Yield: 0.0156 g (41%); LC-MS: 622.2 (M+H)+. 1H NMR (400 MHz, DMSO-d6): δ 12.14 (br s, 1H), 8.82 (s, 1H), 8.69 (s, 1H), 8.42 (s, 1H), 7.91 (s, 1H), 7.61 (d, 1H), 7.06 (d, 1H), 4.06 (ddd, 1H), 3.82 (s, 2H), 3.75 (d, 2H), 3.62-3.46 (m, 5H), 3.31-3.21 (m, 1H), 3.16-3.06 (m, 1H), 2.55 (q, 4H), 1.85-1.74 (m, 1H), 1.70-1.60 (m, 1H), 1.37-1.18 (m, 2H), 0.98 (t, 6H). 19F NMR (400 MHz, DMSO-d6): δ −69.46 (s, 3F).

1. customto provide the free base)
2. stirringAfter stirring overnight
3. customthe reaction mixture was partitioned between ethyl acetate and water
4. washThe organic layer was washed successively with water, 0.1N NaOH and sat. NaCl
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. stirringThe residue was stirred in a 1:1 mixture of DCM
9. waitTFA for 1 hour
10. customsolvents were removed in vacuo
11. stirringThe residue was then stirred with ethylenediamine (0.2 mL) in methanol (1 mL) until deprotection
12. customPurification via preparative HPLC-MS (MeCN/H2O containing 0.15% NH4OH)
13. customafforded product