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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217836Generated: October 29, 2026

2-Fluoro-5-(trifluoromethyl)phenyl isocyanate → 1-(4-(2-Amino-3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)naphthalen-1-yl)-3-(2-fluoro-5-(trifluoromethyl)phenyl)urea

https://huagongshe.com/reaction/217836

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant2-amino-8-(4-aminonaphthalen-1-yloxy)pyrido[2,3-b]pyrazin-3(4H)-oneHCID 46901095—
Product1-(4-(2-Amino-3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)naphthalen-1-yl)-3-(2-fluoro-5-(trifluoromethyl)phenyl)ureaHCID 44134087—

Reaction Steps

Method F2 was used with 2-amino-8-(4-aminonaphthalen-1-yloxy)pyrido[2,3-b]pyrazin-3(4H)-one and 1-fluoro-2-isocyanato-4-(trifluoromethyl)benzene to afford the title compound as a slightly pink solid (73 mg, 89%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-6a7589edb60f4fb7bf8af730edee5121
Source noteuspto-grants-2012_06