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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1484894Generated: October 31, 2026

3-cyclopropyl-1H-pyrazol-5-amine → HCID 58169492, compound

https://huagongshe.com/reaction/1484894

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-cyclopropyl-1H-pyrazol-5-amineHCID 2758014—
ReactantHCID 58169321HCID 58169321—
Solvent1-ButanolHCID 263—
ProductHCID 58169492HCID 5816949228%

Reaction Conditions

Temperature90 °C

Reaction Steps

The mixture of the crude N-tert-butyl-5-(5-chloro-4-(methylsulfinyl)pyrimidin-2-yl)furan-2-sulfonamide and 5-cyclopropyl-1H-pyrazol-3-amine (255 mg, 2.08 mmol, 5.0 equiv.) in n-butanol (6 mL) was stirred at 90° C. for 2 h, then, partitioned between brine and ethylacetate. The organic layer was washed over brine, dried over Na2SO4, filtered and concentrated. The residue was purified by column chromatography to afford N-tert-butyl-5-(5-chloro-4-(5-cyclopropyl-1H-pyrazol-3-ylamino)pyrimidin-2-yl)furan-2-sulfonamide (45 mg, 28% over 2 steps). LC-MS (m/z)=437.0 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09422271B2
Source datasetuspto-grants-2016_08
ORD IDord-c68f70c241c44feab539f14ba71e5b52
Source noteuspto-grants-2016_08