HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → HCID 69803643, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Oxalic Acid | HCID 971 | — |
| Reactant | HCID 69798263 | HCID 69798263 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 69803643 | HCID 69803643 | — |
Reaction Steps
[(3R)-3-(5-Chloro-2-cyano-4-fluorophenoxy)-3-phenylpropyl]methyl carbamic acid 1,1-dimethylethyl ester (220 mg, 0.525 mmol) was stirred in a 4N solution of hydrogen chloride in dioxan (20 ml) for 20 minutes. The hydrochloride salt was,applied to a silica gel column and eluted with 10% 7N ammonia in methanol/dichloromethane. The free base was then converted into an oxalate salt with 1 equivalent of oxalic acid in ethanol. The title compound was obtained as a colourless solid (175 mg, 82%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06887871B2 |
| Source dataset | uspto-grants-2005_05 |
| ORD ID | ord-4f43cd7dc686468a9b79f279132ac829 |
| Source note | uspto-grants-2005_05 |