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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1688784Generated: October 31, 2026

Ethyl Acetate → HCID 67008667, compound

https://huagongshe.com/reaction/1688784

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
ReactantMethyl 2-[(2'-cyanobiphenyl-4-yl)methyl]-3-oxoheptanoateHCID 10807723—
ReactantN-(1,4-dioxaspiro[4.5]dec-8-yl)-1H-pyrazol-5-amineHCID 67009993—
SolventWaterHCID 962—
SolventN,N-DiethylanilineHCID 7061—
ProductHCID 67008667HCID 6700866769.9%

Reaction Steps

A solution of N-(1,4-dioxaspiro[4.5]dec-8-yl)-1H-pyrazol-5-amine (2.2 g), 1,8-diazabicyclo[5.4.0]undec-7-ene (0.30 mL) and methyl 2-[(2′-cyanobiphenyl-4-yl)methyl]-3-oxoheptanoate (7.0 g) in diethylaniline (10 mL) was stirred at 180° C. for 2 hr. The mixture was allowed to cool, ethyl acetate and water were added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (3.6 g, 69%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08148383B2
Source datasetuspto-grants-2012_04
ORD IDord-082b3b614e364cb2b0331684683c93f3
Source noteuspto-grants-2012_04