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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1425755Generated: November 3, 2026

4-Benzyloxy-1-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-one → 2-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-methoxy-pyridin-2-ylmethoxy)-2H-pyridazin-3-one

https://huagongshe.com/reaction/1425755

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Benzyloxy-1-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-oneHCID 86695537—
Reactant4-Benzyloxy-1-[2-(4-bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-1H-pyridin-2-oneHCID 86695538—
Reactant2-[2-(4-Hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-methoxy-pyridin-2-ylmethoxy)-2H-pyridazin-3-oneHCID 86695555—
Solventtert-Butyl methyl etherHCID 15413—
Product2-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-methoxy-pyridin-2-ylmethoxy)-2H-pyridazin-3-oneHCID 8669555697%

Reaction Steps

2-[2-(4-Bromomethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-methoxy-pyridin-2-ylmethoxy)-2H-pyridazin-3-one is prepared following preparation 1d employing 2-[2-(4-hydroxymethyl-2-methyl-phenyl)-2-oxo-ethyl]-5-(5-methoxy-pyridin-2-ylmethoxy)-2H-pyridazin-3-one (preparation 9c) instead of preparation 1c. The reaction mixture is stirred overnight. Tert-butyl methyl ether is added and the resulting precipitate is filtered off and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08933079B2
Source datasetuspto-grants-2015_01
ORD IDord-b91d53c74f0644e8bd0f77c783eacb65
Source noteuspto-grants-2015_01