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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1799586Generated: October 31, 2026

ethyl 6-chloroimidazo[1,2-b]pyridazine-2-carboxylate → Ethyl 6-({3-(aminocarbonyl)-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]-2-thienyl}amino)imidazo[1,2-b]pyridazine-2-carboxylate

https://huagongshe.com/reaction/1799586

Reaction equation

Participants

RoleNameHCIDCharge
Reactantethyl 6-chloroimidazo[1,2-b]pyridazine-2-carboxylateHCID 2779714—
Reactant2-Amino-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]thiophene-3-carboxamideHCID 59525619—
ProductEthyl 6-({3-(aminocarbonyl)-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]-2-thienyl}amino)imidazo[1,2-b]pyridazine-2-carboxylateHCID 58216619—

Reaction Steps

The title compound was prepared as described in Example 1, Step 5 using ethyl 6-chloroimidazo[1,2-b]pyridazine-2-carboxylate (430 mg, 1.92 mmol) and 2-amino-5-[2,6-difluoro-4-(1-hydroxy-1-methylethyl)phenyl]thiophene-3-carboxamide (400 mg, 1.28 mmol) as starting materials.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08344144B2
Source datasetuspto-grants-2013_01
ORD IDord-8e0fab8611644fc9b92a9bd6b93c383c
Source noteuspto-grants-2013_01