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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1437432Generated: October 26, 2026

Diisopropylethylamine → (S)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-(1-(4-fluorophenyl)ethylamino)nicotinonitrile

https://huagongshe.com/reaction/1437432

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant(S)-1-(4-Fluorophenyl)-ethylamineHCID 2779063—
Reactant2-chloro-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoronicotinonitrileHCID 86620602—
Solvent1-ButanolHCID 263—
Product(S)-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoro-2-(1-(4-fluorophenyl)ethylamino)nicotinonitrileHCID 1164659551.6%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 2-chloro-6-(5-cyclopropyl-1H-pyrazol-3-ylamino)-5-fluoronicotinonitrile (Method 43; 0.8 g, 2.8 mmol), (S)-1-(4-fluorophenyl)ethanamine (0.8 g, 5.6 mmol), and DIEA (0.5 g, 3.7 mmol) in n-BuOH (4 ml) was heated in a sealed tube at 140° C. for 48 hrs. The reaction mixture was concentrated and purified by column chromatography (DCM:MeOH=50:1) to give the title compound (0.55 g, 50%). MS: Calcd.: 380. Found: [M+H]+ 381.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622482B2
Source datasetuspto-grants-2009_11
ORD IDord-0e179c51bf394276911e01ff8793d966
Source noteuspto-grants-2009_11