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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2391428Generated: October 31, 2026

Tetrahydrofuran → HCID 57505669, compound

https://huagongshe.com/reaction/2391428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantOxalyl chlorideHCID 65578—
Reactant2-Chloro-4-methyl-1,3-thiazole-5-carboxylic acidHCID 666960—
ReactantN-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamideHCID 57505446—
CatalystDimethylformamideHCID 6228—
SolventDimethylacetamideHCID 31374—
ProductHCID 57505669HCID 5750566978%

Reaction Steps

In the same manner as in Example 259 and using 2-chloro-4-methyl-1,3-thiazole-5-carboxylic acid (140 mg, 0.80 mmol), tetrahydrofuran (5 mL), N,N-dimethylformamide (1 drop), oxalyl chloride (140 μL, 1.6 mmol), N-[6-(3-amino-4-fluorophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (200 mg, 0.61 mmol) and N,N-dimethylacetamide (7 mL) as starting materials, the title compound (230 mg, 78%) was obtained as a pale-green solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08273741B2
Source datasetuspto-grants-2012_09
ORD IDord-6fef05bff14e47a599b2a86da7499954
Source noteuspto-grants-2012_09