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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217841Generated: October 28, 2026

8-(4-amino-3-(methylthio)phenoxy)pyrido[3,2-b]pyrazin-3(4H)-one → 1-(3-tert-butyl-1-(6-methoxypyridin-3-yl)-1H-pyrazol-5-yl)-3-(2-(methylthio)-4-(3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)urea

https://huagongshe.com/reaction/217841

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8-(4-amino-3-(methylthio)phenoxy)pyrido[3,2-b]pyrazin-3(4H)-oneHCID 46901091—
Reactant5-(3-tert-butyl-5-isocyanato-1H-pyrazol-1-yl)-2-methoxypyridineHCID 86647899—
Product1-(3-tert-butyl-1-(6-methoxypyridin-3-yl)-1H-pyrazol-5-yl)-3-(2-(methylthio)-4-(3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413301553%

Reaction Steps

Method F2 was used with 8-(4-amino-3-(methylthio)phenoxy)pyrido[3,2-b]pyrazin-3(4H)-one and 5-(3-tert-butyl-5-isocyanato-1H-pyrazol-1-yl)-2-methoxypyridine to afford the title compound (97 mg, 53%) as a white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-f0354a3d76144794a7a29954f476d9a2
Source noteuspto-grants-2012_06