Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | HCID 71138546 | HCID 71138546 | — |
| Reactant | tert-butyl (1-(4-(2-(2-aminopyridin-3-yl)-5-chloro-3H-imidazo[4,5-b]pyridin-3-yl)phenyl)cyclobutyl)carbamate | HCID 86675348 | — |
| Catalyst | Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) | HCID 11714597 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 71142526 | HCID 71142526 | 95.5% |
Reaction Steps
A mixture of tert-butyl (1-{4-[2-(2-aminopyridin-3-yl)-5-chloro-3H-imidazo[4,5-b]pyridin-3-yl]phenyl}cyclobutyl)carbamate (50.0 mg, 0.101 mmol), 3-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-8-oxa-3-azabicyclo[3.2.1]octane (64.2 mg, 0.204 mmol), bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) (7.21 mg, 0.0102 mmol), and 2M NaOH aq. (0.150 mL, 0.310) in DMF (2 mL) was heated at 160° C. for 2 hours under microwave irradiation. After cooling to room temperature, the mixture was diluted with EtOAc and washed with water (5×) and brine. The combined organic layers were dried over anhydrous Na2SO4 and concentrated. The residue was purified by silica gel column chromatography (EtOAc/hexane=1:4→1:2→1:1→2:1→EtOAc) to afford desired product (62.1 mg, 94.7%) as orange foam.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08962619B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-73c6310bc2b7427f918a2d2066093d54 |
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| Source note | uspto-grants-2015_02 |
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