Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-Acetylpiperazine | HCID 83795 | — |
| Reactant | HCID 58529284 | HCID 58529284 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58529552 | HCID 58529552 | 65.2% |
Reaction Steps
A solution of 5-(2-benzyl-2H-indazol-6-yl)-7-(2-bromo-ethyl)-pyrrolo[2,1-f][1,2,4]-triazin-4-ylamine (70 mg, 0.156 mmol), 1-acetyl-piperazine (40.1 mg, 0.313 mmol, 2.0 eq), triethylamine (20.6 mg, 0.20 mmol, 1.3 eq), and sodium iodide (2.3 mg, 0.016 mmol, 0.1 eq) in anhydrous DMF (1.6 mL) was stirred at 50° C. for 15 h. The reaction mixture was partitioned between EtOAc and water, and the organic layer was washed with 50% aqueous brine (3×), dried over Na2SO4, filtered, and concentrated in vacuo. The crude was purified via preparative HPLC. The product containing fractions were collected, and the TFA from the eluent was removed via filtration through an acidic resin followed by washing with acetonitrile. The product was then elided with 2M NH3 in MeOH. The filtrate was concentrated and the residue was crystallized from DCM-hexane to provide the title compound (50.3 mg, 65%) as a white solid. 1H NMR (300 MHz, DMSO-d6) δ 8.54 (s, 1H), 7.89 (s, 1H), 7.80 (dd, 1H), 7.57 (s, 1H), 7.36 to 7.30 (m, 5H), 7.13 (dd, 1H), 6.65 (s, 1H), 5.65 (s, 2H), 3.40 (q, 4H), 3.07 (t, 2H), 2.68 (t, 2H), 2.45 (t, 2H), 2.38 (t, 2H), 1.97 (s, 3H); ES-MS m/z 495.3 [M+H]+, RT (min) 2.02.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08431695B2 |
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| Source dataset | uspto-grants-2013_04 |
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| ORD ID | ord-9fa937a263334628aa58a25cdfca709b |
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| Source note | uspto-grants-2013_04 |
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