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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 589899Generated: October 30, 2026

Isocyanate → 1-{4-[(2-Aminoimidazo[1,2-b]pyridazin-6-yl)ethynyl]phenyl}-3-[2-fluoro-5-(trifluoromethyl)phenyl]urea

https://huagongshe.com/reaction/589899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsocyanateHCID 105034—
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant6-[(4-Aminophenyl)ethynyl]imidazo[1,2-b]pyridazin-2-amineHCID 118638446—
Product1-{4-[(2-Aminoimidazo[1,2-b]pyridazin-6-yl)ethynyl]phenyl}-3-[2-fluoro-5-(trifluoromethyl)phenyl]ureaHCID 118638411—

Reaction Steps

The compound of Example 4 was made by preparing 6-[(4-aminophenyl)ethynyl]imidazo[1,2-b]pyridazin-2-amine as in Example 20, followed by a procedure similar to Example 3 using 1-fluoro-2-isocyanato-4-(trifluoromethyl)benzene as the isocyanate (see also Schemes 1, 2, and 9).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09233968B1
Source datasetuspto-grants-2016_01
ORD IDord-5b0b3f138f8040f286ca27b4a791c406
Source noteuspto-grants-2016_01