Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | Methanamine, N-methoxy-, hydrochloride (1:1) | HCID 81138 | — |
| Reactant | 1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochloride | HCID 2723939 | — |
| Reactant | 1-N-Cbz-pyrrolidine-3-carboxylic acid | HCID 18538483 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 60007028 | HCID 60007028 | 95% |
Reaction Steps
Triethylamine (1.68 mL, 12.0 mmol) was added dropwise to 1-[(benzyloxy)carbonyl]pyrrolidine-3-carboxylic acid (1.00 g, 4.01 mmol), N,O-dimethylhydroxylamine hydrochloride (782 mg, 8.02 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (1.54 g, 8.02 mmol) and 1-hydroxybenzotriazole (1.08 g, 8.02 mmol) in chloroform (20 mL), and the reaction mixture was stirred at room temperature for 16 hours. After addition of water, the reaction mixture was extracted with chloroform, and the organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/1→3/7 (v/v)) to give the title compound as a yellow oil (1.11 g, yield 95%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US09216999B2 |
|---|
| Source dataset | uspto-grants-2015_12 |
|---|
| ORD ID | ord-6d36fda4ebc44d888074e4302cf1766b |
|---|
| Source note | uspto-grants-2015_12 |
|---|