Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | HCID 90387035 | HCID 90387035 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Product | HCID 90387218 | HCID 90387218 | 72% |
Reaction Steps
To a solution of (S)-tert-butyl 3-((3-chloro-7-fluoroisoquinolin-1-yl)amino)pyrrolidine-1-carboxylate (0.5 g, 1.37 mmol) in DMF (15 mL) was added Zn(CN)2 (0.48 g, 4.1 mmol), and Pd(PPh3)4(0.16 g, 0.14 mmol) under a nitrogen atmosphere. The mixture was heated to 160° C. for 30 minutes in a microwave reactor. The mixture was partition between EtOAc (50 mL) and water (50 mL). The aqueous layer was extracted with EtOAc (3×50 mL). The organic layers were combined, washed with saturated aqueous NaCl (3×50 mL) and concentrated in vacuo. The crude product was purified by column chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=10:1-5:1 gradient) to give the title compound (0.36 g, 72%). 1H NMR (400 MHz, DMSO-d6) δ ppm 8.38-8.35 (d, J=10.8 Hz, 1H), 8.01-7.97 (m, 1H), 7.77-7.72 (m, 3H), 4.66-4.58 (m, 1H), 3.69-3.67 (m, 1H), 3.48-3.46 (m, 1H), 3.39-3.37 (m, 1H), 3.28-3.27 (m, 1H), 2.2 (s, 1H), 1.97-1.91 (m, 1H), 1.40 (s, 9H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09402841B2 |
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| Source dataset | uspto-grants-2016_08 |
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| ORD ID | ord-26d71569f9ac470b92ecbec9aa9eb3bd |
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| Source note | uspto-grants-2016_08 |
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