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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1403006Generated: October 31, 2026

2-Fluoro-5-(trifluoromethyl)phenyl isocyanate → 1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(2-fluoro-4-(3-oxo-3,4-dihydro pyrido[2,3-b]pyrazin-8-yloxy)phenyl)urea

https://huagongshe.com/reaction/1403006

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant8-(4-amino-3-fluorophenoxy)pyrido[2,3-b]pyrazin-3(4H)-oneHCID 46900932—
Product1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(2-fluoro-4-(3-oxo-3,4-dihydro pyrido[2,3-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413391480%

Reaction Steps

Method F2 was used with 8-(4-amino-3-fluorophenoxy)pyrido[2,3-b]pyrazin-3(4H)-one and 2-fluoro-5-trifluoromethyl-phenylisocyanate to afford the title compound, yield=80%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08912191B2
Source datasetuspto-grants-2014_12
ORD IDord-1fa27f022f9e4f3094f84a63fdb2f1a3
Source noteuspto-grants-2014_12