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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1480791Generated: November 2, 2026

Cesium carbonate → HCID 89996280, compound

https://huagongshe.com/reaction/1480791

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
ReactantTert-ButanesulfinamideHCID 3382465—
ReactantHCID 89995981HCID 89995981—
Catalystpalladium(II) acetateHCID 167845—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 89996280HCID 8999628042%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 8-chloro-N-(2-methoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl)pyrido[3,4-d]pyrimidin-2-amine (Example 94, 27 mg, 0.074 mmol), (±)-2-methyl-2-propanesulfinamide (12 mg, 0.099 mmol), palladium(II) acetate (1 mg, 4.44 μmol), cesium carbonate (48 mg, 0.147 mmol) and Xantphos (5 mg, 8.64 μmol) in 1,4-dioxane (0.7 mL) (degassed) was stirred at 100° C. for 18 hours. The reaction was quenched with water and extracted with EtOAc. The combined organic layers were washed with brine, dried and concentrated in vacuo. The residue was purified by silica gel column chromatography eluting with 0 to 90% EtOAc in cyclohexane to give the title compound (14 mg, 42%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09409907B2
Source datasetuspto-grants-2016_08
ORD IDord-c2959dadfd7e44268d87889959af7748
Source noteuspto-grants-2016_08