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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1476920Generated: October 30, 2026

N-methyl-2-pyrrolidone → HCID 136597021, compound

https://huagongshe.com/reaction/1476920

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantHydrazinecarboxylic acid, ethyl esterHCID 20064—
ReactantHCID 90386938HCID 90386938—
SolventEthyl AcetateHCID 8857—
ProductHCID 136597021HCID 1365970214.4%

Reaction Conditions

Temperature175 °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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09402841B2
Source datasetuspto-grants-2016_08
ORD IDord-e080817a8b1d4b2cb87816d438b4ad58
Source noteuspto-grants-2016_08