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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1801927Generated: October 31, 2026

Water → (4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanone O-methyloxime

https://huagongshe.com/reaction/1801927

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantO-Methylhydroxylamine hydrochlorideHCID 521874—
Reactant(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanoneHCID 46892243—
SolventEthanolHCID 702—
Product(4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanone O-methyloximeHCID 86649059108.7%

Reaction Conditions

Temperature60 °C

Reaction Steps

To (4-fluorophenyl)(4-(5-methyl-4H-pyrazol-3-ylamino)quinazolin-2-yl)methanone from Example 3 (0.700 g, 2.15 mmol) in EtOH (10 mL) was added methoxylamine hydrochloride (0.336 g, 4.02 mmol) and the mixture was heated to 60° C. for 30 min. Water was added and the yellow precipitate was collected by filtration and washed with MeOH to afford (4-fluorophenyl)(4-(5-methyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)methanone O-methyloxime (0.88 g). LC-MS (ESI) m/z 377 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08349851B2
Source datasetuspto-grants-2013_01
ORD IDord-cdd13930e5284e80b61bf25fc1382875
Source noteuspto-grants-2013_01