Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | 2-Fluoropyridine-4-boronic acid | HCID 2783396 | — |
| Reactant | HCID 58335589 | HCID 58335589 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Product | HCID 58335627 | HCID 58335627 | — |
Reaction Steps
In step 16-3, 2-fluoropyridin-4-ylboronic acid (97%) (9.6 g, 66 mmol), Pd(dppf)Cl2 (1.3 g, 1.65 mmol) and 2N Na2CO3 (50 mL, 99 mmol) were added to a suspension of (R)-3-(6-bromopyridin-2-yl)-6-(2-(3-fluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazine (16-2) (14.5 g, 33 mmol) in 1,4-dioane (250 mL). The mixture was degassed for 15 minute using N2 and then heated at 110° C. for 3 hours. The mixture was filtered through a celite pad and rinsed with ethyl acetate (EtOAc). The filtrate was washed with brine, dried over Na2SO4, and concentrated to give (R)-3-(2′-fluoro-2,4′-bipyridin-6-yl)-6-(2-(3-fluorophenyl)pyrrolidin-1-yl)imidazo[1,2-b]pyridazine (16-3) as a dark oil, which was used in the next step without further purification. LC/MS: 455.2 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08507488B2 |
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| Source dataset | uspto-grants-2013_08 |
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| ORD ID | ord-e0fa568a1c8741549783490a99ffcecd |
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| Source note | uspto-grants-2013_08 |
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