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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2282587Generated: November 1, 2026

1,2-Dichloroethane → HCID 86687143, compound

https://huagongshe.com/reaction/2282587

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant5-Fluoro-2-hydrazinylpyridineHCID 19916786—
Reactant(2S,4R)-4-fluoro-1-methylpyrrolidine-2-carboxylic acidHCID 55300764—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
ProductHCID 86687143HCID 8668714347.9%

Reaction Steps

A solution of (5-fluoro-pyridin-2-yl)-hydrazine (378 mg, 2.98 mmol), Intermediate 91a (600 mg, 4.08 mmol) and HOBt.H2O (44 mg, 0.12 mmol) in DCM (10 mL) and DMF (3 mL) was added EDC (628 mg, 3.28 mmol) portionwise at RT and the mixture stirred at RT for 17 h. The solution was diluted with water and extracted with DCM. The combined organics were dried and concentrated in vacuo. The residue was purified by FCC, using 0-7.5% [2M NH3 in MeOH] in DCM, to give the title compound as light orange powder (366 mg, 35%). LCMS (Method 3): Rt 0.56 min, m/z 257 [MH+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09139584B2
Source datasetuspto-grants-2015_09
ORD IDord-0686a2c680ff4c248b270c1829e53e1a
Source noteuspto-grants-2015_09