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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1695965Generated: October 31, 2026

Ethyl 3-(furan-2-yl)-2-methyl-3-oxopropanoate → 4-(3-Furan-2-yl-4-methyl-5-oxo-2,5-dihydro-pyrazol-1-yl)-N-(1,2,2,6,6-pentamethyl-piperidin-4-yl)-benzamide

https://huagongshe.com/reaction/1695965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl 3-(furan-2-yl)-2-methyl-3-oxopropanoateHCID 12143105—
Reactant4-Hydrazino-N-(1,2,2,6,6-pentamethyl-piperidin-4-yl)-benzamideHCID 59515576—
SolventAcetic AcidHCID 176—
Product4-(3-Furan-2-yl-4-methyl-5-oxo-2,5-dihydro-pyrazol-1-yl)-N-(1,2,2,6,6-pentamethyl-piperidin-4-yl)-benzamideHCID 59515578—

Reaction Steps

3-furan-2-yl-2-methyl-3-oxo-propionic acid ethyl ester (49 mg) and 4-Hydrazino-N-(1,2,2,6,6-pentamethyl-piperidin-4-yl)-benzamide (85 mg) in 0.5 ml of acetic acid were heated up at 65° C. for 2 h. Concentration in vacuo and purification by HPLC gave the expected product. MH+=437.3

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163757B2
Source datasetuspto-grants-2012_04
ORD IDord-ba31943c0c864cfbb1fecfa0e6185015
Source noteuspto-grants-2012_04