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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710619Generated: October 26, 2026

Methanol → HCID 73335332, compound

https://huagongshe.com/reaction/710619

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant2-chloro-1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridine-4-yl]ethanoneHCID 86711668—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 73335332HCID 7333533243%

Reaction Conditions

Temperature75 °C

Reaction Steps

The carbinol obtained above (69 mg, 0.4 mmol) was diluted in 1.2 mL of THF and 500 μL of DMF and treated with K2CO3 (111 mg, 0.8 mmol) and 2-chloro-1-(1-(4-fluorophenyl)-6,7-dihydro-1H-pyrazolo[4,3-b]pyridin-4(5H)-yl)ethanone (118 mg, 0.4 mmol). The slurry was heated to 75° C. The reaction slurry was diluted with EtOAc and washed with brine, dried on MgSO4, filtered, and concentrated. The residue was purified by reverse phase HPLC (C18 column, acetonitrile-H2O with 0.1% TFA as eluent) to provide 69 mg of the desired product (43%) as a white solid. 1H NMR (400 MHz, CDCl3, mixture of rotamers) δ 8.37 (s, 0.8H), 7.63 (s, 0.2H), 7.42-7.46 (m, 2H), 7.13-7.19 (m, 2H), 5.14 (s, 0.4H), 5.03 (s, 1.6H), 3.90 (m, 0.4H), 3.87 (m, 1.6H), 2.86 (m, 2H), 2.28 (s, 2.4H), 2.25 (s, 0.6H), 2.05-2.13 (m, 2H), 1.62 (s, 6H); MS: (ES) m/z calculated for C21H24ClFN5O2 [M+H]+ 432.2, found 432.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181241B2
Source datasetuspto-grants-2015_11
ORD IDord-a0e8a73a92664b80897fcc5eb494f41d
Source noteuspto-grants-2015_11