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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1663907Generated: October 26, 2026

Cyclobutanecarbonyl chloride → N-[5-({2-[(cyclobutylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-1,3-dimethyl-1H-pyrazole-5-carboxamide

https://huagongshe.com/reaction/1663907

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclobutanecarbonyl chlorideHCID 78705—
ReactantN-{5-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl)-1,3-dimethyl-1H-pyrazole-5-carboxamide hydrochlorideHCID 57505635—
SolventDimethylacetamideHCID 31374—
ProductN-[5-({2-[(cyclobutylcarbonyl)amino]imidazo[1,2-b]pyridazin-6-yl}oxy)-2-methylphenyl]-1,3-dimethyl-1H-pyrazole-5-carboxamideHCID 5750564477.1%

Reaction Steps

In the same manner as in Example 264 and using N-{5-[(2-aminoimidazo[1,2-b]pyridazin-6-yl)oxy]-2-methylphenyl}-1,3-dimethyl-1H-pyrazole-5-carboxamide hydrochloride (200 mg, 0.48 mmol), cyclobutanecarbonyl chloride (86 mg, 0.73 mmol) and N,N-dimethylacetamide (5 mL) as starting materials, the title compound (170 mg, 76%) was obtained as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08034812B2
Source datasetuspto-grants-2011_10
ORD IDord-456aadc2a034410fac7d0a51ecb91edf
Source noteuspto-grants-2011_10