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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2056498Generated: October 30, 2026

5-Methyl-2-(trifluoromethyl)-3-furancarboxylic acid → 6-[4-(5-METHYL-2-TRIFLUOROMETHYLFURAN-3-CARBONYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDE

https://huagongshe.com/reaction/2056498

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Methyl-2-(trifluoromethyl)-3-furancarboxylic acidHCID 2782183—
ReactantN-(2-cyclopropylethyl)-6-(1-piperazinyl)-3-pyridazinecarboxamideHCID 66849327—
Product6-[4-(5-METHYL-2-TRIFLUOROMETHYLFURAN-3-CARBONYL)PIPERAZIN-1-YL]PYRIDAZINE-3-CARBOXYLIC Acid (2-CYCLOPROPYLETHYL)AMIDEHCID 11374374—

Reaction Steps

Following the procedure of Example 9, making variations only as required to use 5-methyl-2-trifluoromethylfuran-3-carboxylic acid in place of 2,5-dichlorobenzoic acid to react with 6-piperazin-1-yl-pyridazine-3-carboxylic acid (2-cyclopropylethyl)amide, the title compound was obtained as a white solid (53% yield). m.p. 128-130° C. 1H NMR (500 MHz, CDCl3) δ 8.08, 7.99, 7.01, 6.15, 3.89-3.94), 3.77-3.82, 3.52-3.60, 2.39, 1.52, 0.71-0.80, 0.45-0.49, 0.08-0.13. MS (ES+) m/z 452 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07335658B2
Source datasetuspto-grants-2008_02
ORD IDord-715d362487af4746bf33ed0375fe88b6
Source noteuspto-grants-2008_02