HuagongsheHuagongshe Chemistry Print Report · For research reference only
N-methyl-2-pyrrolidone → HCID 136597021, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | Hydrazinecarboxylic acid, ethyl ester | HCID 20064 | — |
| Reactant | HCID 90386938 | HCID 90386938 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 136597021 | HCID 136597021 | 4.4% |
Reaction Conditions
| Temperature | 175 °C |
|---|
Reaction Steps
To the reaction mixture containing (S)-tert-butyl 3-((6-cyano-3-methylpyridin-2-yl)oxy)pyrrolidine-1-carboxylate (1.095 g) was added NMP (1.5 mL) and ethyl hydrazinecarboxylate (0.752 g, 7.22 mmol). The mixture was heated at 175° C. for 1.5 days and was subsequently cooled and diluted with EtOAc. The organic phase was washed with aqueous NH4Cl, dried, and concentrated. The crude product was purified by preparative HPLC eluting with a gradient of 35-60% ACN in water (acid mode) to give the title compound (0.042 g, 4.4% over 2 steps).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09402841B2 |
| Source dataset | uspto-grants-2016_08 |
| ORD ID | ord-e080817a8b1d4b2cb87816d438b4ad58 |
| Source note | uspto-grants-2016_08 |