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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 38850Generated: October 26, 2026

1,4-Dioxane → 5-[4-(5-{[(2R,6S)-2,6-Dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-methyl-1H-indazol-6-yl]-2-(methyloxy)-3-pyridinamine

https://huagongshe.com/reaction/38850

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
ReactantPotassium Phosphate, TribasicHCID 62657—
Reactant2-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-3-amineHCID 59557920—
Reactant6-Bromo-4-(5-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-methyl-1H-indazoleHCID 66695900—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
SolventWaterHCID 962—
Product5-[4-(5-{[(2R,6S)-2,6-Dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-methyl-1H-indazol-6-yl]-2-(methyloxy)-3-pyridinamineHCID 6669207758.8%

Reaction Conditions

Temperature100 °C

Reaction Steps

6-Bromo-4-(5-{[(2R,6S)-2,6-dimethyl-4-morpholinyl]methyl}-1,3,4-oxadiazol-2-yl)-1-methyl-1H-indazole (200 mg, 0.492 mmol), 2-(methyloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3-pyridinamine (123 mg, 0.492 mmol), 1,1′-bis(diphenylphosphino)ferrocene palladium dichloride (72.0 mg, 0.098 mmol) and tripotassium phosphate (313 mg, 1.477 mmol) were added to 1,4-dioxane (4 ml) and water (1 ml) then heated under microwave irradiation for 20 mins at 100° C. The solvent was removed under nitrogen and the crude residue purified by chromatography (20 g Si cartridge, gradient: 0-100% EtOAc/DCM +0-20% MeOH). The appropriate fractions were combined and the solvent was removed to give the title compound as a brown solid (130 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524751B2
Source datasetuspto-grants-2013_09
ORD IDord-419d4e31d0204233b6b86b5cfdba5422
Source noteuspto-grants-2013_09