Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Isobutyric Acid | HCID 6590 | — |
| Reactant | 1,4-Dimethylpyrazole | HCID 136836 | — |
| Reactant | 2-(Dicyclohexylphosphino)-2'-(dimethylamino)biphenyl | HCID 2734217 | — |
| Reactant | HCID 86685975 | HCID 86685975 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | HCID 86685977 | HCID 86685977 | 9.9% |
Reaction Steps
To a stirred solution of 2-(5-bromo-pyridin-3-yl)-6-chloro-3,4-dihydro-2H-isoquinolin-1-one (example 7) (80 mg, 0.25 mmol) and 1,4-dimethyl-1H-pyrazole (23 mg, 0.25 mmol) in NMP (2.0 mL) were added Pd(OAc)2 (2.0 mg, 0.008 mmol), 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (DavePhos) (6.3 mg, 0.016 mmol), Bu4NOAc (153 mg, 0.5 mmol) and isobutyric acid (0.085 mL, 0.08 mmol). The resulting reaction mixture was heated to 100° C. for 6 hours before it was poured into H2O (25 mL) and extracted with EtOAc (2×90 mL). The combined organic layers were washed with brine, dried over anhy. Na2SO4, filtered and concentrated in vacuo to give a crude product which was then purified by prep-HPLC to give title compound (8.7 mg, 9.9%) as a yellow solid. MS: 353.1 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09133158B2 |
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| Source dataset | uspto-grants-2015_09 |
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| ORD ID | ord-e8204cb54dde47eebeb4880ba7e2cd04 |
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| Source note | uspto-grants-2015_09 |
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