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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 539741Generated: October 29, 2026

Pyridine → N-(5-(3-(4-fluorophenyl)-6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylphenyl)pivalamide

https://huagongshe.com/reaction/539741

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPivaloyl chlorideHCID 62493—
Reactant5-(3-(4-Fluorophenyl)-6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylanilineHCID 68089098—
SolventAcetonitrileHCID 6342—
ProductN-(5-(3-(4-fluorophenyl)-6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylphenyl)pivalamideHCID 5740670590%

Reaction Steps

A stirred solution of 5-(3-(4-fluorophenyl)-6-methoxyimidazo[1,2-b]pyridazin-2-yl)-2-methylaniline (0.025 g, 0.072 mmol) in acetonitrile (1 mL) containing pyridine (0.215 mmol) is added trimethylacetylchloride (0.072 mmol). The mixture is stirred at room temperature for 4 hours, then concentrated to dryness and purified via chromatography (hexanes to EtOAc) to afford the title compound (0.028 g, 90%) as a yellow solid: Rf 0.28 (1:1 EtOAc:hexanes); LCMS (m/z)=433.5 [M+H]+, tR=2.74 min. (compound same as Example 114)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08871767B2
Source datasetuspto-grants-2014_10
ORD IDord-e0ff701efd93451ea1205ce9af4f9b20
Source noteuspto-grants-2014_10