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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 971227Generated: October 30, 2026

2,3-Dichloropyridine → 7-(3-Chloropyridin-2-yl)-N-(4-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4-amine

https://huagongshe.com/reaction/971227

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,3-DichloropyridineHCID 16988—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-(4-(Trifluoromethyl)phenyl)-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4-amineHCID 59021576—
SolventN,N-DiethylacetamideHCID 12703—
Solvent1,4-DioxaneHCID 31275—
Product7-(3-Chloropyridin-2-yl)-N-(4-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4-amineHCID 1200436417%

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of diisopropylethylamine (252 mg, 1.95 mmol), N-(4-(trifluoromethyl)phenyl)-5,6,7,8-tetrahydro-2-(methylthio)pyrido[3,4-d]pyrimidin-4-amine (443 mg, 1.3 mmol) and 2,3-dichloropyridine (386 mg, 2.6 mmol) in dioxane (5 mL) and N,N-diethylacetamide (0.5 mL) was heated via microwave in a sealed tube at 180° C. for 10 h. Solvent was removed in vacuo and residue was purified by column chromatography. The product was obtained as a beige solid (100 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07312330B2
Source datasetuspto-grants-2007_12
ORD IDord-cb10f7e562d547c0b14b618698064710
Source noteuspto-grants-2007_12