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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 640189Generated: October 29, 2026

Tetrahydrofuran → 3-(3-(4-(5-Methyl-furan-2-ylmethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

https://huagongshe.com/reaction/640189

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantTriethylamineHCID 8471—
Reactant3-Ethynylpyridin-2-amineHCID 12422526—
Reactant(4-(5-Methyl-furan-2-ylmethyl)-phenyl)acetohydroximoyl chlorideHCID 72262866—
SolventWaterHCID 962—
Product3-(3-(4-(5-Methyl-furan-2-ylmethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamineHCID 5925519943.4%

Reaction Conditions

Temperature45 °C

Reaction Steps

To a mixture of (4-(5-methyl-furan-2-ylmethyl)-phenyl)-acetohydroximoyl chloride (11 mg, 0.043 mmol) described in Manufacturing Example 46-1-6 and tetrahydrofuran (1 mL) were added 3-ethynyl-pyridin-2-ylamine (4.0 mg, 0.034 mmol) described in Manufacturing Example 1-2-3 and triethylamine (9.4 μL, 0.068 mmol) at room temperature, which was stirred for 3 hours at 45° C. The reaction mixture was cooled to room temperature, water was added at the same temperature, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, and was concentrated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate:heptane=2:3) to obtain the title compound (5.1 mg, 41%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07691882B2
Source datasetuspto-grants-2010_04
ORD IDord-5cd126101760482ab276464bcf5f870f
Source noteuspto-grants-2010_04