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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2196120Generated: November 2, 2026

4-Ethyl-6-(4-fluorophenyl)pyrido[3,2-d]pyrimidin-2-amine → 2-Chloro-4-(2-[1,3]dioxan-2-yl-ethyl)-6-(4-fluorophenyl)-pyrido[3,2-d]pyrimidine

https://huagongshe.com/reaction/2196120

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Ethyl-6-(4-fluorophenyl)pyrido[3,2-d]pyrimidin-2-amineHCID 24963876—
Reactant2,4-Dichloro-6-(4-fluorophenyl)pyrido[3,2-d]pyrimidineHCID 59647843—
ReactantHCID 178419673HCID 178419673—
Product2-Chloro-4-(2-[1,3]dioxan-2-yl-ethyl)-6-(4-fluorophenyl)-pyrido[3,2-d]pyrimidineHCID 57906755—

Reaction Steps

The procedure for the synthesis of 4-ethyl-6-(4-fluoro-phenyl)-pyrido[3,2-d]pyrimidin-2-ylamine was repeated, except for the use of (1,3-dioxan-2-ylethyl)magnesium bromide instead of ethylmagnesium bromide and 2,4-Dichloro-6-(4-fluoro-phenyl)-pyrido[3,2-d]pyrimidine (see WO2006135993) instead of N-[4-chloro-6-(4-fluoro-phenyl)-pyrido[3,2-d]pyrimidin-2-yl]-acetamide. The resulting title compound was characterised as follows: MS (m/z) 374.0 [M+H]+; HPLC Rt=4.46 minutes (Method A).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08338435B2
Source datasetuspto-grants-2012_12
ORD IDord-7077e9c1e5804b469fb20881dac3c192
Source noteuspto-grants-2012_12