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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217838Generated: October 29, 2026

2-Fluoro-5-(trifluoromethyl)phenyl isocyanate → 1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(3-(2-oxo-1,2-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)urea

https://huagongshe.com/reaction/217838

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant8-(3-aminophenoxy)pyrido[2,3-b]pyrazin-2(1H)-oneHCID 46899946—
Product1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(3-(2-oxo-1,2-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413391073%

Reaction Steps

Method F2 was used with 8-(3-aminophenoxy)pyrido[2,3-b]pyrazin-2(1H)-one and 1-fluoro-2-isocyanato-4-(trifluoromethyl)benzene to afford the title compound as a white solid (49 mg, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-60761106db7043ea91ee0b8062e0a5b0
Source noteuspto-grants-2012_06