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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 548842Generated: October 29, 2026

6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid ethyl ester → 4-Methyl-6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid

https://huagongshe.com/reaction/548842

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid ethyl esterHCID 42630254—
Reactant4-Methyl-6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid ethyl esterHCID 42630372—
Product4-Methyl-6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acidHCID 6715815382%

Reaction Steps

As described for example 11a, 4-methyl-6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid ethyl ester (2.30 g, 6.52 mmol), instead of 6-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyridazine-3-carboxylic acid ethyl ester, was converted to the title compound (1.73 g, 82%) which was obtained as an off-white solid. MS: m/e=324.4 [M−H]−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07943619B2
Source datasetuspto-grants-2011_05
ORD IDord-89916ed01d5b4b7f8d769672d0ad5589
Source noteuspto-grants-2011_05