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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1663885Generated: October 29, 2026

Tetrahydrofuran → HCID 57505620, compound

https://huagongshe.com/reaction/1663885

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantOxalyl chlorideHCID 65578—
Reactant1-Ethyl-3-methyl-1H-pyrazole-5-carboxylic acidHCID 2743794—
ReactantN-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamideHCID 57505476—
CatalystDimethylformamideHCID 6228—
SolventDimethylacetamideHCID 31374—
ProductHCID 57505620HCID 5750562075%

Reaction Steps

In the same manner as in Example 259 and using 1-ethyl-3-methyl-1H-pyrazole-5-carboxylic acid (130 mg, 0.84=mol), tetrahydrofuran (5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (91 μL, 1.0 mmol), N-[6-(3-amino-4-methylphenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (210 mg, 0.65 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (220 mg, 75%) was obtained as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08034812B2
Source datasetuspto-grants-2011_10
ORD IDord-916bc86cc0f2451094f3ba3c836bc019
Source noteuspto-grants-2011_10