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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1787545Generated: October 30, 2026

Water → HCID 178500539, compound

https://huagongshe.com/reaction/1787545

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantMethyl 2-chlorobutanoateHCID 123415—
ReactantHCID 178493830HCID 178493830—
SolventDimethylformamideHCID 6228—
ProductHCID 178500539HCID 17850053959.3%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 5-(2-hydroxy-2-pyridin-3-ylvinyl)-7-methoxy-2,3-dihydroimidazo[1,2-c]quinazolin-8-ol hydrochloride (Example 1-4) 50.4 mg (0.14 mmol), methyl chloro-butyrate 22.2 mg (0.16 mmmol) and potassium carbonate 186.9 mg (1.35 mmmol) in N,N-dimethylformamide 1 mL was stirred at 120° C. for 4 hours. The reaction mixture was poured into water and extracted into dichloromethane. The organic layer was washed with brine, dried over MgSO4, filtrated and the solvent was evaporated. The residue was washed by diethyl ether to give the title compound 35.0 mg as yellow solid. Yield 59.3%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07511041B2
Source datasetuspto-grants-2009_03
ORD IDord-ac8e82d8f35c4f6c97fbccb624da542a
Source noteuspto-grants-2009_03