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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2285002Generated: October 30, 2026

Water → HCID 86687033, compound

https://huagongshe.com/reaction/2285002

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Reactant5-Fluoro-2-hydrazinylpyridineHCID 19916786—
Reactant1,2-Dimethyl-L-prolineHCID 53302261—
SolventDichloromethaneHCID 6344—
ProductHCID 86687033HCID 8668703369%

Reaction Steps

To a suspension of (S)-1,2-dimethyl-pyrrolidine-2-carboxylic acid (660 mg, 4.61 mmol), (5-fluoro-pyridin-2-yl)-hydrazine (488 mg, 3.84 mmol) and Et3N (1.1 mL, 7.7 mmol) in DCM (20 mL) were added HOBt.H2O (51 mg, 0.38 mmol) and EDCI.HCl (884 mg, 4.61 mmol) and the mixture stirred at RT overnight. The mixture was partitioned between EtOAc/water and extracted with EtOAc. The combined organics were dried (Na2SO4), filtered and concentrated in vacuo. FCC, using 0-10% MeOH in DCM, gave the title compound as a brown solid (668 mg, 69%). LCMS (Method 4): Rt 0.40, m/z 253 [MH+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09145413B2
Source datasetuspto-grants-2015_09
ORD IDord-70103305e845495c93e7232b0ece1a42
Source noteuspto-grants-2015_09