Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1842371Generated: November 2, 2026

Benzyl Bromide → 2-Benzyl-4-{2-oxo-2-[4-(2-trifluoromethyl-phenoxy)-piperidin-1-yl]-ethylamino}-2H-pyridazin-3-one

https://huagongshe.com/reaction/1842371

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
Reactant3(2H)-PyridazinoneHCID 68153—
Reactant4-(2-(Trifluoromethyl)phenoxy)piperidine hydrochlorideHCID 17178004—
Reactant(2-Benzyl-3-oxo-2,3-dihydro-pyridazin-4-ylamino)-acetic acidHCID 66958017—
Product2-Benzyl-4-{2-oxo-2-[4-(2-trifluoromethyl-phenoxy)-piperidin-1-yl]-ethylamino}-2H-pyridazin-3-oneHCID 5091567630%

Reaction Steps

Compound 48 is prepared from (2-benzyl-3-oxo-2,3-dihydro-pyridazin-4-ylamino)-acetic acid (obtained following the operating mode for 4e using benzyl bromide to alkylate nitrogen 2 of pyridazinone) and from intermediate 1a in base form, following synthesis method 2 (yield: 30%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08946225B2
Source datasetuspto-grants-2015_02
ORD IDord-fd4a635ab60741fdbf8a0328b4df20a5
Source noteuspto-grants-2015_02