Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 67446056 | HCID 67446056 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 67444615 | HCID 67444615 | 78% |
Reaction Steps
(R)-tert-butyl 2-((R)-3,3-difluorocyclopentyl amino)butanoate (1.0 g, 3.798 mmol) was dissolved in methanol (70 mL) and cooled down to 0° C. The resultant mixture was saturated with HCl gas, then stirred at room temperature for 3 hours. The reaction mixture was warmed to 40° C. for 90 minutes then concentrated under reduced pressure. The residue was partitioned between DCM and an aqueous solution of NaHCO3. The aqueous phase was extracted with DCM three times, dried over magnesium sulfate and concentrated under reduced pressure to afford the desired product as colourless oil (645 mg, 78% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08461149B2 |
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| Source dataset | uspto-grants-2013_06 |
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| ORD ID | ord-9e38e1e2d04e4588b545925acc31590c |
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| Source note | uspto-grants-2013_06 |
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