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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 7905Generated: October 26, 2026

Diisopropylethylamine → 1-(2-Oxo-2-thiophen-2-yl-acetyl)piperidine-2-carboxylic acid N'-(6-methyl-4-trifluoromethyl-pyridin-2-yl)-hydrazide

https://huagongshe.com/reaction/7905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
ReactantPyBroPHCID 2733179—
Reactant1-(6-Methyl-4-(trifluoromethyl)-2-pyridyl)hydrazineHCID 2775684—
Reactant1-[1,2-Dioxo-2-(thien-2-yl)ethyl)-2-piperidinecarboxylic acidHCID 9816804—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventTetrahydrofuranHCID 8028—
Product1-(2-Oxo-2-thiophen-2-yl-acetyl)piperidine-2-carboxylic acid N'-(6-methyl-4-trifluoromethyl-pyridin-2-yl)-hydrazideHCID 10138135—

Reaction Steps

From Intermediate 3 (267 mg, 1 mmol), 2-hydrazino-6-methyl-4-trifluoromethylpyridine (191 mg, 1 mmol), PyBrop (466 mg, 1 mmol), DMAP (122 mg) and DIEA (2 mL) in THF (30 mL), using the same procedure for Compound 1, the title compound was obtained as a white solid; 110 mg (25%). MS (m/z) 441 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07087628B2
Source datasetuspto-grants-2006_08
ORD IDord-617a12e0035e4410b97f42be63d9aec7
Source noteuspto-grants-2006_08