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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1878545Generated: November 2, 2026

Ethanol → HCID 75216494, compound

https://huagongshe.com/reaction/1878545

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantPotassium CarbonateHCID 11430—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 86659715HCID 86659715—
ProductHCID 75216494HCID 75216494—

Reaction Conditions

Temperature150 °C

Reaction Steps

There was suspended, in ethanol (2 mL), 5-chloro-2-{4-(2-methoxy-ethyl-amino)-phenyl}-7-morpholin-4-yl-pyrazolo[1,5-a]pyrimidine (32.6 mg, 0.0841 mM) and then potassium carbonate (12.8 mg, 0.0925 mM) and hydrazine monohydrate (40.8 μL, 0.841 mM) were added to the suspension. This suspension was stirred at 150° C. for 30 minutes under the irradiation with microwaves. This reaction liquid was diluted with a saturated aqueous common salt solution and then extracted with ethyl acetate. The extracts thus obtained were combined, dried over anhydrous sodium sulfate and then the solvent was distilled off. The resulting residue was suspended in ethanol (2 mL), then acetic acid (5.0 μL, 0.087 mM) and 3-methyl-benzaldehyde (9.9 μL, 0.0841 mM) were added to the suspension and then the mixture was stirred at room temperature for 30 minutes. This reaction mixture was filtered and the resulting solid was purified by the NH-silica gel column chromatography (methylene chloride) and further the resulting solid was washed with methanol to thus give the title compound (10.6 mg, overall yield of these two steps: 26%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08314098B2
Source datasetuspto-grants-2012_11
ORD IDord-9965579f8ee54487a5b5671602bde0e8
Source noteuspto-grants-2012_11