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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710654Generated: October 26, 2026

Potassium Carbonate → HCID 73335820, compound

https://huagongshe.com/reaction/710654

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant3-(Trifluoromethyl)-1,4,6,7-tetrahydropyrano[4,3-c]pyrazoleHCID 50992796—
Reactant2-chloro-1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridine-4-yl]ethanoneHCID 86711668—
SolventDimethylformamideHCID 6228—
SolventTetrahydrofuranHCID 8028—
ProductHCID 73335820HCID 7333582055%

Reaction Conditions

Temperature55 °C

Reaction Steps

A mixture of 3-(trifluoromethyl)-1,4,6,7-tetrahydropyrano[4,3-c]pyrazole (0.050 g, 0.26 mmol), 2-chloro-1-[1-(4-fluorophenyl)-6,7-dihydro-5H-pyrazolo[4,3-b]pyridine-4-yl]ethanone (0.050 g, 0.17 mmol) and K2CO3 (0.130 g, 0.94 mmol) in THF (0.8 mL) and DMF (0.4 mL) was heated at 55° C. for 1 hr. It was then cooled to rt. The mixture was partitioned between EtOAc (50 mL) and sat. NaHCO3 (30 mL). The organic layer was separated, dried over Na2SO4, concentrated in vacuo, and purified by reverse phase HPLC to afford the desired product (0.035 g, 55%). 1H NMR (400 MHz, CDCl3) δ 8.38 (s, 1H), 7.44 (dd, J=8.8, 4.6 Hz, 2H), 7.17 (dd, J=8.8, 8.0 Hz, 2H), 5.13 (s, 2H), 4.75 (s, 2H), 3.98 (t, J=5.4 Hz, 2H), 3.87 (m, 2H), 2.85 (t, J=6.2 Hz, 2H), 2.79 (t, J=5.6 Hz, 2H), 2.10 (m, 2H); MS: (ES) m/z calculated for C21H19F4N5O2 [M+H]+ 450.1, found 450.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181241B2
Source datasetuspto-grants-2015_11
ORD IDord-c6e9c1a686554afe82d26e5a97f94f36
Source noteuspto-grants-2015_11