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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1095038Generated: October 25, 2026

Cesium carbonate → N2-(4-(2-(Pyrrolidin-1-yl)ethoxy)phenyl)-5-methyl-N4-(7-fluoro-1H-indol-4-yl)pyrimidine-2,4-diamine

https://huagongshe.com/reaction/1095038

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
Reactant4-Bromo-7-fluoroindoleHCID 3822541—
Reactant5-Methyl-N2-(4-(2-(pyrrolidin-1-yl)ethoxy)phenyl)pyrimidine-2,4-diamineHCID 57675085—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
ProductN2-(4-(2-(Pyrrolidin-1-yl)ethoxy)phenyl)-5-methyl-N4-(7-fluoro-1H-indol-4-yl)pyrimidine-2,4-diamineHCID 448162731.7%

Reaction Steps

A mixture of intermediate 38 (413 mg, 1.3 mmol), 4-bromo-7-fluoro-1H-indole (310 mg, 1.45 mmol), Pd2(dba)3 (92 mg, 0.1 mmol). Xantphos (180 mg, 0.3 mmol) and cesium carbonate (1.3 g, 4 mmol) was suspended in dioxane (50 mL) and heated at reflux under the argon atmosphere for 20 h. The mixture was filtered and the filtrate concentrated in vacuo. The residue was purified by HPLC to afford the title compound (10 mg of HCl salt, 1.5%) as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08133900B2
Source datasetuspto-grants-2012_03
ORD IDord-f8c8500a32c340eeb6fb58a3a23e7f68
Source noteuspto-grants-2012_03