HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → (2R,3R)-3-methoxy-2-methyl-N-(2-phenylethyl)-3-[(2S)-pyrrolidin-2-yl] propanamide, hydrochloride salt
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | tert-butyl (2S)-2-{(1R,2R)-1-methoxy-2-methyl-3-oxo-3-[(2-phenylethyl)amino]propyl}pyrrolidine-1-carboxylate | HCID 86685721 | — |
| Solvent | Methanol | HCID 887 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | (2R,3R)-3-methoxy-2-methyl-N-(2-phenylethyl)-3-[(2S)-pyrrolidin-2-yl] propanamide, hydrochloride salt | HCID 131731845 | — |
Reaction Steps
To #20 (7.00 g, 17.9 mmol, 1 eq.) in dioxane (50 mL, 0.36 M) and methanol (2 mL) was added a 4 M solution of hydrochloric acid in dioxane (20 mL, 80 mmol, 4.4 eq.). After stirring for 18 hours, the mixture was concentrated to afford #24 (5.86 g, quantitative) as a gum, which was used without further purification; LC-MS: 292.2 [M+H+], retention time=0.47 minutes.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08828401B2 |
| Source dataset | uspto-grants-2014_09 |
| ORD ID | ord-7cf5dbdfc70c4915b53275b67a300a2f |
| Source note | uspto-grants-2014_09 |