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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 589906Generated: October 27, 2026

Isocyanate → 1-{6-[(4-Aminophenyl)ethynyl]imidazo[1,2-b]pyridazin-2-yl}-3-(3-chloro-4-fluorophenyl)urea

https://huagongshe.com/reaction/589906

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsocyanateHCID 105034—
Reactant3-Chloro-4-fluorophenyl isocyanateHCID 2734632—
Reactant6-[(4-Aminophenyl)ethynyl]imidazo[1,2-b]pyridazin-2-amineHCID 118638446—
Product1-{6-[(4-Aminophenyl)ethynyl]imidazo[1,2-b]pyridazin-2-yl}-3-(3-chloro-4-fluorophenyl)ureaHCID 118638410—

Reaction Steps

The compound of Example 14 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 2-chloro-1-fluoro-4-isocyanatobenzene 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-92a16ca88f5f4c25b00539c82596d582
Source noteuspto-grants-2016_01