Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetonitrile | HCID 6342 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | (2-Methoxypyridin-3-yl)boronic acid | HCID 2762709 | — |
| Reactant | HCID 86696492 | HCID 86696492 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 86696491 | HCID 86696491 | 61% |
Reaction Steps
To 124 mg (0.20 mmol) of (S)-2-amino-1-(4-(3-bromoimidazo[1,2-b]pyridazin-6-yl)piperazin-1-yl)-4-methylpentan-1-one (di-TFA acid salt) in a microwaveable vial was added 51 mg (0.33 mmol) of the (2-methoxypyridin-3-yl)boronic acid, 110 mg (0.80 mmol) of K2CO3, 31 mg of PdCl2(dppf)2 3 mL of MeCN and 1.5 mL of water. This was microwaved for 0.5 hr at 140° C. It was then diluted with EtOAc, washed with brine, and the organic layer was dried over MgSO4 and concentrated. It was purified on by neutral PREP HPLC to obtain 51.6 mg (61%) of the desired product. 1H NMR (400 MHz, METHANOL-d4) δ ppm 0.98-1.10 (m, 6H) 1.60-1.84 (m, 3H) 3.48-3.60 (m, 2H) 3.62-3.81 (m, 5H) 3.94-4.02 (m, 1H) 4.05 (s, 3H) 4.48 (dd, J=9.47, 4.17 Hz, 1H) 7.13 (dd, J=7.45, 4.93 Hz, 1H) 7.27 (d, J=9.85 Hz, 1H) 7.88 (d, J=9.85 Hz, 1H) 8.01 (s, 1H) 8.17 (dd, J=5.05, 1.77 Hz, 1H) 8.51 (s, 2H) 8.66 (dd, J=7.58, 1.77 Hz, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08969565B2 |
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| Source dataset | uspto-grants-2015_03 |
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| ORD ID | ord-acb3ac497ff64ccf91dc6933e300df50 |
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| Source note | uspto-grants-2015_03 |
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