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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2229591Generated: October 30, 2026

Hydrazine → HCID 145817244, compound

https://huagongshe.com/reaction/2229591

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantDiisopropylethylamineHCID 81531—
ReactantHOAtHCID 181649—
Reactant(2R)-2-{[(tert-butoxy)carbonyl]amino}-2-phenylacetic acidHCID 2755953—
Solvent1,2-DichloroethaneHCID 11—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 145817244HCID 145817244—

Reaction Steps

EDC (1.6 g) was dissolved in DMF (20 ml.) and treated with HOAt (1.16 g) in DMF (10 ml.) and stirred for 10 mins. DIPEA (1.46 ml.) was then added and the stirring continued for a further 15 mins. Boc-D-phenylglycine (2 g) in DMF (10 ml.) was then added dropwise and stirring continued for a further 25 mins. 1M Hydrazine in THF (84 ml.) was then added and the mixture stirred over night. The solvents were then evaporated and the residue treated with water (100 ml.), basified with 2M sodium hydroxide solution and extracted with ethylacetate. The combined extracts were washed with water and brine, dried with magnesium sulphate, filtered and evaporated to give a yellow solid (1.38 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06420438B1
Source datasetuspto-grants-2002_07
ORD IDord-3daf2e20780c41cab74b6eed832867bd
Source noteuspto-grants-2002_07