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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2100558Generated: October 31, 2026

Potassium tert-butoxide → 2-[2-(3-chloro-4-fluoro-phenyl)-ethoxymethyl]-6-ethyl-3H-pyrido[2,3-d]pyrimidin-4-one

https://huagongshe.com/reaction/2100558

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium tert-butoxideHCID 23665647—
Reactant2-chloro-N-[2-[2-(3-chloro-4-fluorophenyl)ethoxy]ethanimidoyl]-5-ethylpyridine-3-carboxamideHCID 140520064—
SolventDimethyl SulfoxideHCID 679—
Product2-[2-(3-chloro-4-fluoro-phenyl)-ethoxymethyl]-6-ethyl-3H-pyrido[2,3-d]pyrimidin-4-oneHCID 136368402—

Reaction Steps

In analogy to the procedure described in example 78.4, 2-chloro-N-{2-[2-(3-chloro-4-fluoro-phenyl)-ethoxy]-1-imino-ethyl}-5-ethyl-nicotinamide was treated with KOtBu in DMSO to obtain 2-[2-(3-chloro-4-fluoro-phenyl)-ethoxymethyl]-6-ethyl-3H-pyrido[2,3-d]pyrimidin-4-one as off-white crystals. MS: m/e=362.1 [M+H+].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07572801B2
Source datasetuspto-grants-2009_08
ORD IDord-45ff0ad6985a40d1a2b058193566e2f5
Source noteuspto-grants-2009_08