Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Boron tribromide | HCID 25134 | — |
| Reactant | HCID 68158862 | HCID 68158862 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 178521075 | HCID 178521075 | 82.3% |
Reaction Steps
To a solution of [(R)-2-benzyloxy-1-(6-fluoro-1-pyridin-2-yl-1H-benzoimidazol-2-yl)ethyl](7H-purin-6-yl)amine (336 mg, 0.7 mmol) in anhydrous DCM (8 mL) at 0° C. under a nitrogen atmosphere was added dropwise boron tribromide (1.0M in DCM, 2.6 mL, 2.6 mmol). The reaction mixture was stirred at 0° C. for 1 h. MeOH was added and the volatiles removed under reduced pressure. The resulting residue was purified by column chromatography (Si—PCC, gradient 0-10% MeOH in DCM) to afford 280 as a white solid (225 mg, 82%). LCMS (Method K): RT 2.72 min [M+H]+ 391.0. 1H NMR (DMSO-d6, 400 MHz): δ 12.90 (1H, br s), 8.68 (1H, s), 8.20-8.08 (2H, m), 8.03 (1H, s), 7.85 (1H, d, J=7.87 Hz), 7.71 (1H, dd, J=8.80, 4.89 Hz), 7.57 (1H, t, J=6.07 Hz), 7.30-7.06 (3H, m), 5.84 (1H, s), 5.11 (1H, s), 4.01-3.82 (2H, m)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08653089B2 |
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| Source dataset | uspto-grants-2014_02 |
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| ORD ID | ord-8da43708a5754f66b22edd18c7072ed6 |
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| Source note | uspto-grants-2014_02 |
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