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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 562482Generated: October 30, 2026

Trifluoroacetic acid → 1-{2-[6-(1,4-Oxazepan-4-yl)pyrimidin-4-yl]-3-oxo-2,3-dihydro-1H-pyrazol-4-yl}-1H-1,2,3-triazole-4-carbonitrile

https://huagongshe.com/reaction/562482

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant4-(6-Hydrazinylpyrimidin-4-yl)-1,4-oxazepaneHCID 57925070—
ReactantEthyl 2-(4-cyanotriazol-1-yl)-3-(dimethylamino)prop-2-enoateHCID 66725972—
SolventWaterHCID 962—
Product1-{2-[6-(1,4-Oxazepan-4-yl)pyrimidin-4-yl]-3-oxo-2,3-dihydro-1H-pyrazol-4-yl}-1H-1,2,3-triazole-4-carbonitrileHCID 57925066—

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 200 mg (0.9 mmol) of the compound from Example 7A, 178 mg (0.9 mmol) of the compound from Example 14A and 33 μl (49 mg, 0.4 mmol) of trifluoroacetic acid in 3 ml of water is stirred at 100° C. for 16 h. The precipitated solid is filtered off and washed first with water and then with diethyl ether. The product is dried under reduced pressure. Yield: 80 mg (27% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08067407B2
Source datasetuspto-grants-2011_11
ORD IDord-2a3973d372c7454f9b093f9953550e16
Source noteuspto-grants-2011_11