Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 1H-Pyrazol-3-amine, 5-methyl- | HCID 93146 | — |
| Reactant | HCID 86638336 | HCID 86638336 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 24954477 | HCID 24954477 | 13% |
Reaction Steps
A mixture of tert-butyl 3-(6-chloro-2-(2-chlorophenyl)pyrimidin-4-yl)azetidine-1-carboxylate (280 mg, 0.74 mmol), 5-methyl-1H-pyrazol-3-amine (86 mg, 0.88 mmol), DIPEA (124 mg, 0.96 mmol) and sodium iodide (122 mg, 0.81 mmol) in DMF (5 mL) was heated at 120° C. overnight. The reaction mixture was concentrated and the residue partitioned between EtOAc and brine. After a further extraction with EtOAc, the combined organics were dried (MgSO4), filtered and concentrated. Purification was achieved by column chromatography (eluting with petroleum ether/ethyl acetate, 1/1). The residue was dissolved in TFA (1 mL) and DCM (3 mL) and stirred for 45 min and then concentrated. Purification by Gilson preparatory HPLC gave the azetidine as a white solid (32 mg, 13%). MS (ES+) m/e=341. 1H NMR: (DMSO) 2.23 (3H, s), 4.05-4.28 (5H, m), 6.25 (1H, s), 7.11 (1H, s), 7.43-7.65 (3H, m), 7.78 (1H, d), 8.97 (1H, s), 9.61 (1H, s), 10.47 (1H, s).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08372850B2 |
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| Source dataset | uspto-grants-2013_02 |
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| ORD ID | ord-648987cde8c14003bd1c8fd328293725 |
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| Source note | uspto-grants-2013_02 |
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